JP2010005040A - Exercise apparatus - Google Patents

Abstract

To provide an exercise device capable of improving the attractiveness of the exercise device and increasing the user's willingness to use the exercise device.
A feature point detection unit that detects a feature point in a series of movements of the exercise device using an output of the sensor unit; a feature point calculation unit that calculates a time difference (a feature point interval) between detection timings; An average value calculation unit that calculates an average value a _AV of the feature point intervals for a predetermined number of times and a music data selection unit that selects appropriate music data based on the average value a _AV are provided. When the beat data associated with the selected music data is data indicating a beat interval b ₁ that does not satisfy a _AV = b × m (m is a positive natural number), of _'detects, this beat interval b _1' beat interval b ₁ to the most approximate to the beat interval b ₁ comprising a playback speed adjustment unit that sets shall perform the reproduction process of the music data at a reproduction speed corresponding to .
[Selection] Figure 10

Description

  The present invention belongs to the technical field of an exercise device that applies exercise load to a user.

  2. Description of the Related Art In recent years, attention has been paid to an exercise device that applies an exercise load imitating riding to a user by swinging a seat on which the user is seated. This exercise device has been widely used as a simple exercise device that can be used by children and elderly people, from medical facilities for rehabilitation purposes to ordinary households.

  For example, Patent Documents 1 and 2 listed below are related to such exercise devices. In the following Patent Document 1, each seat of the body is moved by moving the seat portion so as to draw a figure 8 while the user is seated on the seat portion, or by making the seat portion lean forward or backward. There has been disclosed an exercise device that allows a user to perform exercises such as training muscles of a part or dropping luxury meat.

Patent Document 2 listed below discloses a back pain prevention training apparatus that uses a 6-axis parallel mechanism or the like to realize a series of smooth swing patterns.
JP 2007-21231 A Japanese Patent No. 3394890

  In this type of exercise apparatus, a constant exercise effect is provided to the user by being continuously used. However, since the conventional exercise device merely swings the seat, the user gets bored with the exercise device, and the continuity of use of the exercise device may not be maintained. Therefore, there is room for improvement in terms of the attraction of the exercise device in order to increase the willingness to use the exercise device.

  The present invention has been made to solve the above-described problems, and provides an exercise device capable of improving the attractiveness of the exercise device and increasing the user's willingness to use the exercise device. For the purpose.

  The invention according to claim 1 is an exercise device comprising a movable portion that performs an operation of applying an exercise load to a user, wherein the exercise load applied to the user is variably configured, and the operation of the movable portion An operation detection unit for detecting sound data, a sound data processing unit for performing adjustment processing for adjusting sound elements with respect to the sound data based on a detection signal output from the operation detection unit; And a sound output unit that performs a sound output operation based on the sound data after the adjustment processing.

  According to the present invention, the operation of the movable unit is detected by the operation detection unit, and the sound data processing unit performs sound element adjustment processing on the acquired sound data based on the detection signal output from the operation detection unit. Is called. A sound output operation is performed by the sound output unit based on the sound data after the adjustment process. As described above, the exercise device has a function of outputting sound from the sound output unit during a period in which an exercise load is applied to the user by the movable unit. Thereby, the user can exercise while listening to the sound output from the sound output unit.

  In addition to this, since the function of adjusting the element of the sound output from the sound output unit based on the detection signal of the operation detection unit that detects the operation of the movable unit is mounted, the sound output from the sound output unit and the An association can be made with the operation of the movable part. As a result, it is possible to cause the user to perform exercise while associating the sound and the motion sensuously.

  The invention according to claim 2 is the exercise device according to claim 1, wherein the motion detection unit detects a predetermined operation point as a feature point in a series of operations of the movable unit, The sound data processing unit performs the adjustment processing based on a detection signal of the feature point by the motion detection unit.

  According to the present invention, since the adjustment process is performed based on a detection signal of a predetermined operating point (feature point) in a series of operations of the movable part, each operation point in the series of operations of the movable part is determined. A configuration in which the adjustment processing is performed with a relatively simple configuration and method can be realized as compared with a configuration in which all or most of the detection is performed and the adjustment processing is performed using the detection results.

  As the feature point, a change point or an inflection point in at least one of the operation direction, the operation speed, and the operation acceleration of the movable part is assumed as in the invention described in claim 3.

  In addition, if the sound data is music data constituting music as in the invention described in claim 4, the user can perform exercise in a manner similar to dance or dance, and is not music, for example, a single sound The enjoyment of exercise can be increased as compared with the output form. As the sound element, as in the invention described in claim 5, for example, a temporal element of music such as beat, accent, rhythm, pitch, and tempo is assumed.

  According to a sixth aspect of the present invention, in the exercise device according to the fifth aspect, the temporal element of the music is a beat, and the adjustment processing is detected continuously in time by the motion detection unit. It includes a beat interval adjustment process for adjusting the beat interval for the music data based on the time difference of the feature point detection timing.

  According to the present invention, when the time element of the music is a beat, the beat data is beaten with respect to the music data based on the time difference of the detection timing of each feature point detected in time by the motion detection unit. By adjusting the interval, it becomes possible to associate the operation of the movable unit with the timing of the beat of the music output from the sound output unit. As a result, the user can feel a sense of unity and exhilaration, and sensory support (assistance) can be performed so that the rhythm of the exercise can be easily understood.

  According to a seventh aspect of the present invention, in the exercise device according to the sixth aspect, the beat interval adjustment processing is performed to a beat interval b satisfying a = b × m or a = b / m (m is a positive natural number). It is a process to change.

  According to the present invention, since the beat interval adjustment processing is performed to change to the beat interval b that satisfies a = b × m or a = b / m (m is a positive natural number), the operation of the movable unit and the sound output unit The timing of the beat of the music to be output will be associated, and this association will make the user feel a sense of unity and exhilaration, and provide sensory support (assistance) to make it easier to grasp the rhythm of exercise. Can go.

  The invention according to claim 8 is the exercise device according to claim 6, further comprising a music data storage unit that stores one or a plurality of music data in which beat data indicating the beat interval is associated in advance. The data processing unit acquires music data having the same beat interval as the time difference a of the feature point detection timing from the music data storage unit as music data to be output by the sound output unit, and stores the music data in the sound output unit. Output.

  According to the ninth aspect of the present invention, when the music data having the same beat interval as the time difference a does not exist in the music data storage unit, the sound data processing unit a = b × m or a = b / m Music data associated with beat data indicating the beat interval closest to the beat interval b satisfying (m is a positive natural number) is acquired from the music data storage unit as music data to be output by the sound output unit. The process of changing the beat interval to the beat interval b is performed on the acquired music data as the beat interval adjustment process.

  Beats that are not the same as the time difference a of the detection timing of the feature points and that indicate beat intervals that do not approximate the beat interval b that satisfies the equation a = b × m or a = b / m (m is a positive natural number) When the beat interval adjustment process for adjusting the beat interval when outputting music from the sound output unit is performed on the music data associated with the data, the sound output unit outputs an unnatural sound There is.

  Accordingly, music data having the same beat interval as the time difference a or music data having the same beat interval as the time difference a does not exist in the music data storage unit as in the inventions of claims 8 and 9. Sometimes, music data associated with beat data indicating the beat interval closest to the beat interval b satisfying a = b × m or a = b / m (m is a positive natural number) is associated with the beat interval adjustment process. By making it a target, generation of unnatural sound as described above can be avoided.

  According to a tenth aspect of the present invention, after the beat interval adjustment processing, the sound data processing unit adjusts the beat phase to synchronize the beat timing with the feature point detection timing by the motion detection unit. When the phase adjustment process to be adjusted is performed, the operation of the movable part and the timing of the beat of the music output from the sound output part are synchronized. Thereby, it is possible to make the user feel a sense of unity and exhilaration more strongly, or to effectively provide sensory support (assistance) so that the rhythm of exercise can be more easily grasped.

  According to an eleventh aspect of the present invention, in the exercise device according to the fifth aspect, the temporal element of the sound is an accent that is an emphasized beat among beats periodically repeated in a certain pattern, The adjustment process includes an accent interval adjustment process for adjusting an accent interval with respect to the music data based on a time difference in detection timing of each feature point detected in time by the motion detection unit.

  According to the present invention, the user can feel a sense of unity and exhilaration more strongly, or the rhythm of the exercise can be more easily grasped, as compared with the case where the object associated with the operation of the movable part is simply beat timing. Sensory support (assistance) can be performed more effectively.

  According to a twelfth aspect of the present invention, in the exercise device according to the eleventh aspect, the accent interval adjustment processing is performed so that the accent interval c satisfies a = c × n or a = c / n (n is a positive natural number). It is a process to change.

  According to the present invention, since the accent interval adjustment process is performed to change to the accent interval c that satisfies a = c × n or a = c / n (n is a positive natural number), the operation of the movable unit and the sound output unit The timing of the accent of the music that is output will be associated, and this association will make the sense of unity and exhilaration more intense for the user, and sensory support (assistance) ) Can be performed more effectively.

  A thirteenth aspect of the present invention is the exercise device according to the eleventh aspect, further comprising a music data storage unit that stores one or a plurality of music data in which the accent data indicating the accent interval is associated in advance. The data processing unit acquires music data having the same accent interval as the time difference a of the feature point detection timing from the music data storage unit as music data to be output by the sound output unit, and stores the music data in the sound output unit. Output.

  According to a fourteenth aspect of the present invention, in the exercise device according to the thirteenth aspect, when the music data processing unit has no music data having the same accent interval as the time difference a in the music data storage unit, a Music data associated with accent data indicating an accent interval closest to the accent interval c satisfying = c × n or a = c / n (n is a positive natural number) is music to be output by the sound output unit Data acquired from the music data storage unit as data, and processing for changing the accent interval to the accent interval c is performed as the accent interval adjustment processing on the acquired music data.

  According to the invention described in claims 13 and 14, as in the inventions described in claims 8 and 9, generation of unnatural sound can be avoided.

  In addition, as in the invention described in claim 15, the sound data processing unit adjusts the accent phase to synchronize the accent timing with the feature point detection timing by the motion detection unit after the accent interval adjustment processing. When the phase adjustment process to be adjusted is performed, the operation of the movable part and the timing of the accent of music output from the sound output part are synchronized. Thereby, it is possible to make the user feel a sense of unity and exhilaration more strongly, or to perform sensory support (assistance) more effectively so that the rhythm of exercise can be easily grasped.

  According to a sixteenth aspect of the present invention, a video data storage unit that stores video data of a video to be displayed on a predetermined display unit, and a video on the display unit based on the video data stored in the video data storage unit. If the exercise apparatus is further provided with a video output control unit that displays the image, the user can exercise while receiving not only auditory stimulation but also visual stimulation. In this way, the user can exercise in a state of receiving more stimuli with more senses, so that the attraction of the exercise device can be further improved.

  In addition, as in the invention described in claim 17, the video data is generated in association with a sound element generated by the sound data, and the video output control unit is configured to generate the sound output unit. When the video is displayed on the display unit in conjunction with the sound output from the user, the user can feel the sense of unity and exhilaration of sound (music) and video and exercise, or the rhythm of exercise Sensory support (assistance) can be performed more effectively so that it can be easily grasped.

  Then, as in the invention described in claim 18, the motion detection unit detects a predetermined operation point as a feature point in a series of operations of the movable unit, and the motion detection unit detects the feature point. When detected, the video output control unit changes the video displayed on the display unit to make the user feel a sense of unity and exhilaration of sound (music) and video and exercise, Sensory support (assistance) can be performed more effectively so that the rhythm of movement can be easily grasped.

  Further, as in a nineteenth aspect of the present invention, the exercise apparatus may include a display unit that displays the video.

  According to the present invention, it is possible to cause the user to perform exercise while sensuously associating sound and exercise, so that the attraction of the exercise device is more attractive than an exercise device that simply operates the movable part. Can be improved. As a result, the user's willingness to use the exercise apparatus can be increased.

  Hereinafter, embodiments of the exercise device according to the present invention will be described. FIG. 1 is an external perspective view showing a first embodiment of an exercise device according to the present invention, and FIG. 2 is a side view of the exercise device.

  As shown in FIGS. 1 and 2, the exercise device 1 includes a seat 2 that can be seated by a user in a shape simulating a horse's back and saddle, and a swing mechanism 3 that swings the seat 2. An elevating mechanism 4 for adjusting the height of the seat portion 2 by raising and lowering the seat portion 2 to a raised position U and a lowered position D by an electric motor and a rack and pinion, etc., and an upper hinge pin at the left and right positions of the seat portion 2 5, a stirrup 6 suspended from the lower end of the seat portion 2 so that the user can put his / her foot on the lower end, a handle 7 provided on the front portion of the seat portion 2 so as to be able to swing back and forth, and the seat portion. 2 and a leg portion 8 that supports the swing mechanism 3.

  3 is a side view showing the internal configuration of the exercise apparatus 1, FIG. 4 is an enlarged side view showing the swing mechanism 3, FIG. 5 is a plan view thereof, and FIG. 6 is a rear view thereof. is there. 3, 4 and 6, the state in which the swing mechanism 3 swings is indicated by phantom lines.

  A pedestal 9 to which the seat portion 2 is attached is supported by a movable base 11 so as to be able to swing back and forth via a pair of connecting links 10 that are paired on the left and right sides, and the movable base 11 is supported by a base 12 so as to be swingable left and right. In addition, a drive unit 13 is accommodated between the base 9 and the movable base 11. The connecting link 10 includes a front link 10a and a rear link 10b. The upper end of the front link 10 a is pivotally attached to an upper shaft pin 9 a provided at the front end of the base 9, and the lower end of the front link 10 a is pivoted to a lower shaft pin 15 a provided at the front end of the side plate 14 of the movable base 11. It is worn. The upper end portion of the rear link 10b is pivotally attached to the upper shaft pin 9b provided at the rear end portion of the base 9, and the lower end portion of the rear link 10b is the lower shaft pin provided at the rear end portion of the side plate 14 of the movable base 11. 15b is attached to the shaft. The front and rear lower shaft pins 15a and 15b constitute a left and right shaft 15 that supports the connecting link 10 so as to be rotatable about an axis in the left and right direction Y, whereby the pedestal 9 is rotated about the left and right shaft 15 as shown in FIG. The reciprocating rotation is possible in the front-rear direction indicated by the arrow M.

  As shown in FIGS. 4 and 6, shaft support plates 16 are erected on both ends in the front-rear direction X of the base 12, and the shaft support plates 16 are disposed on both ends in the front-rear direction X of the movable base 11. Are connected to the shaft support plate 16 so as to be pivotable by the front and rear shafts 18. The front and rear shafts 18 are arranged at two positions in the front and rear of the center portion of the base 12 to support the movable mount 11 so as to be rotatable about the front and rear shafts 18. A reciprocating rotation is possible in the left-right direction indicated by N.

  On the other hand, the drive unit 13 uses the rotational force of the single motor 19 and the output rotary shaft 20 of the motor 19 as a reciprocating linear movement in the front-rear direction X of the base 9, a reciprocating rotational movement about the left-right axis 15, and a rotation about the front-rear axis 18. Two drive parts 13a and 13b are provided which are converted into reciprocal movements and can drive the seat part 2 by combining these three operations. The motor 19 of this example is placed vertically on the base 12, and the protruding direction of the output rotating shaft 20 is upward.

  The first drive unit 13a is for reciprocating linear movement in the front-rear direction X and for rotational reciprocation about the left and right axis 15, and the second drive unit 13b is for reciprocating rotation about the front-rear axis 18. As shown in FIGS. 4 and 5, the first driving unit 13 a includes a first shaft 23 connected to the output rotation shaft 20 via a motor gear 21 and a first gear 22, and one end of the first shaft 23. An eccentric crank 24 connected eccentrically, and an arm link 25 having one end connected to the eccentric crank 24 and the other end attached to a shaft pin 10c provided on the front link 10a. Both end portions of the first shaft 23 are rotatably supported on the pedestal 9 side, and the eccentric crank 24 performs an eccentric circular motion with respect to the first shaft 23, whereby the front link 10a is interposed via the arm link 25. Reciprocates in the front-rear direction X, whereby the pedestal 9 connected to the connecting link 10, that is, the seat portion 2, can swing in the direction indicated by the arrow M in FIGS.

  As shown in FIGS. 5 and 6, the second driving unit 13 b has a second shaft 28 connected via the interlocking gear 26 and the second gear 27 of the first shaft 23, and one end portion of the second driving unit 13 b is second. An eccentric rod 29 that is eccentrically connected to one end portion of the shaft 28 and is rotatably connected to the base 12 is configured. Both end portions of the second shaft 28 are rotatably supported on the pedestal 9 side. The eccentric rod 29 is arranged on either the left side or the right side of the base 9 (right side in FIGS. 5 and 6), and the upper end portion 29a of the eccentric rod 29 is connected to one end of the second shaft 28 by the shaft pin 60 shown in FIG. The lower end portion 29b of the eccentric rod 29 is connected to an L-shaped connection fitting 30 fixed to the base 12 by a shaft pin 31 so as to be rotatable. Accordingly, the upper end portion of the eccentric rod 29 performs an eccentric circular motion by the rotation of the second shaft 28, so that the base 9, that is, the seat portion 2 rotates around the front-rear axis 18 as indicated by an arrow N in FIG. 6. It is movable.

  According to the above configuration, when the output rotation shaft 20 protruding in one direction of the motor 19 rotates, the first shaft 23 rotates due to the engagement of the motor gear 21 and the first gear 22 and at the same time, the interlocking gear 26 of the first shaft 23. The second shaft 28 is rotated by meshing with the second gear 27. When the first shaft 23 rotates, an eccentric crank 24 connected to one end portion of the first shaft 23 performs an eccentric circular motion, and the front link 10a via the arm link 25 moves in the front-rear direction X about the left and right shafts 15 on the front side. To turn. At this time, since the rear link 10b cooperates and rotates around the rear left and right axis 15, the base 9, that is, the seat portion 2, reciprocates and swings in the front-rear direction X. On the other hand, due to the rotation of the second shaft 28, the upper end portion of the eccentric rod 29 performs an eccentric circular motion, and the pedestal 9, that is, the seat portion 2 rotates and reciprocates around the longitudinal axis 18.

  In this way, with the user seated on the seat 2, the seat 2 moves in the front-rear direction X, the left-right direction Y, the up-down direction Z, and the θX, θY, and θZ directions shown in FIG. Since swinging is performed, the body's balance function and motor function can be trained. Moreover, since three operations can be performed using one motor 19, the number of motors 19 is reduced, the control of the motors is simplified, and the cost and the size can be reduced. Further, the output rotation shaft 20 of the motor 19 only needs to protrude in one direction, and when it is protruded in two directions, it can be placed vertically, but can be placed vertically. It is possible to reduce the installation space of the entire moving mechanism 3 and make it compact, and it is possible to store the swinging mechanism 3 in the seat portion 2 and faithfully reproduce the intended operation imitating riding. .

  FIG. 8 is a block diagram showing an electrical configuration of the exercise device 1. In addition, the same number is attached | subjected about the structure same as the structure shown in FIGS. 1-7, and the description is abbreviate | omitted.

  As shown in FIG. 8, the exercise device 1 includes a swing mechanism 3, an elevating mechanism 4, a display unit 32, a sound output unit 33, an input operation unit 34, a sensor unit 35, a storage unit 36, And a control unit 37. Each of the units operates by receiving power supply from a commercial power source, for example.

  The display unit 32 includes, for example, an LCD (Liquid Crystal Display), and displays images and messages to the user (for example, exercise level, remaining time, calorie consumption) and the like. The display unit 32 may be, for example, a plasma display device instead of the LCD, and may include an LED as a light emitter, a 7-segment LED (Light Emitting Diode), and the like.

  The sound output unit 33 includes, for example, a speaker that converts an electrical signal (sound signal) into sound, and outputs sound such as music and a message to the user.

  Although not shown, the input operation unit 34 selects a mode from a plurality of modes that are different in power button for turning on and off the main power source of the exercise apparatus 1, swinging strength adjustment, speed adjustment, and the like. And a switch for adjusting the height and angle of the seat. The input operation unit 34 has a configuration in which a touch panel configured by covering a pressure-sensitive material made of a linear transparent material at predetermined pitches in the vertical and horizontal directions with a transparent cover is pasted on the LCD screen. You may have.

  The sensor unit 35 is for detecting the movement of the exercise device 1 and is composed of, for example, an acceleration sensor configured using a piezo element. Here, it is assumed that the sensor unit 35 detects the acceleration of the swinging motion in the front-rear direction (left-right direction in FIG. 2).

  The storage unit 36 is composed of, for example, a non-volatile memory or HDD, and stores various data. The storage unit 36 may be installed in the exercise device 1 or may be configured to be detachable from the exercise device 1 via a connection terminal such as a USB connector.

  The control unit 37 includes an unillustrated CPU (Central Processing Unit), a ROM (Read Only Memory) that stores a program that defines the operation of the CPU, and a function and work area for temporarily storing data. And a microcomputer configured with a RAM (Random Access Memory) or the like having a function as described above, and is responsible for overall control of the exercise apparatus 1.

  In the exercise device 1 having the above-described configuration, in the present embodiment, music output is possible, and the music output is performed in conjunction with the swing operation of the swing mechanism 3 (seat portion 2). There is a difference between the conventional.

  In order to be equipped with this function, in the present embodiment, the storage unit 36 is provided with a music data storage unit 36a for storing music data output from the sound output unit 33 (hereinafter referred to as music data). The control unit 37 functionally includes a feature point detection unit 38, a feature point interval calculation unit 39, an average value calculation unit 40, a music data selection unit 41, a reproduction speed adjustment unit 42, and a reproduction phase adjustment unit. 43.

  The music data storage unit 36a stores music data of a plurality of music. Generally, music has beats that are cut at regular intervals, and each music has its own performance speed (speed to be played). In the present embodiment, the reproduction speed of music data corresponding to this performance speed is set in advance for each music data, and the music data is represented by beat data that indicates the beat time interval that determines the reproduction speed. Stored in the storage unit 36a in association with the music data. Hereinafter, the beat time interval is referred to as a beat interval.

  Each piece of music data stored in the music data storage unit 36a is music data associated with beat data indicating different beat intervals.

  The feature point detector 38 detects a predetermined operating point in a series of movements of the exercise device 1 as a feature point using the output of the sensor unit 35. For example, the exercise apparatus 1 swings so as to draw a character “8” as shown in FIG. 9 when viewed from above, and as described above, the sensor unit 35 performs the swing motion in the front-rear direction (left-right direction in FIG. 2). Assuming that acceleration is detected, the output waveform of the sensor unit 35 is a substantially sine waveform having a peak value when the exercise device 1 is located at the front end and the rear end, as shown in FIG. FIG. 9 shows the swinging trajectory of the exercise device 1 with the upper side being the front of the exercise device 1 and the lower side being the rear of the exercise device 1.

  As the feature points, for example, a turning point indicated by a circle in FIG. 9 where the output of the sensor unit 35 changes from increasing to decreasing, and an output of the sensor unit 35 indicated by a triangular symbol in FIG. 9 increases from decreasing. An inflection point at which the output polarity of the sensor unit 35 changes from positive to negative or from negative to positive, which is indicated by a square mark in FIG. 9, is assumed. In the present embodiment, an inflection point P (when the exercise device 1 is located at the foremost end) where the output changes from increasing to decreasing is adopted as the feature point, and the feature point detecting unit 38 uses the inflection point P as the feature point. It is detected as the feature point. The feature point detection unit 38 and the sensor unit 35 are examples of components of the motion detection unit.

  When the feature point P is detected by the feature point detection unit 38, the feature point interval calculation unit 39 detects the detected feature point P and, for example, the detection timing of the feature point P detected immediately before it. The time difference a is calculated. Hereinafter, this time difference a is referred to as a feature point interval a.

Average value calculating section 40, and calculates the currently detected characteristic point intervals by the feature point interval calculator 39, the average value a _AV between nearest feature point interval of a predetermined number of times in the past (e.g., past three) is there. For example, assuming that the feature point interval detected this time is a ₁ and the feature point intervals for the past three times are a ₂ , a ₃ , and a ₄ , the average value calculation unit 40 (a ₁ + a ₂ + a ₃ + a ₄ ) / 4 is calculated as an average value _{a AV} a.

Music data selector 41, based on the average value a _AV calculated by the average value calculating unit 40, and selects the appropriate musical data from the music data stored in the music data storage unit 36a. That is, the music data selection unit 41
a _AV = b × m (m is a positive natural number) (1)
When the music data associated with the beat data indicating the beat interval b satisfying is stored in the music data storage unit 36a, the music data is selected (referred to as pattern 1). In addition, when such music data is not stored in the music data storage unit 36a, the music data selection unit 41 has beat data indicating the beat interval closest to the beat interval b satisfying the equation (1). The associated music data is selected (referred to as pattern 2).

The reproduction speed adjustment unit 42 selects the relationship between the beat interval of the music actually output from the sound output unit 33 and the average value a _{AV in} the case of the pattern 2 so as to satisfy the equation (1). A process for changing the beat interval of the music is performed on the music data, and the music playback speed is changed accordingly.

That is, as shown in FIG. 10B, beat intervals b ₁ (a _AV ≠ b ₁ ) where the beat data associated with the music data read from the music data storage unit 36a does not satisfy the equation (1). when (the m is a positive integer) × m shows a), playback speed adjustment unit 42 detects the beat interval b _{1 'to} the most approximate to the beat interval b ₁ of the beat interval satisfying the formula (1), It is set that the music data is reproduced at a reproduction speed corresponding to the beat interval b ₁ ′.

10B and 10C, when the selected music data is music data of music having four beats per measure, the beat interval b _{1 is set} to the beat interval b ₁ ′ = a _AV / 4, and the playback speed of music based on the music data is set to a playback speed corresponding to the beat interval b ₁ ′ = a _AV / 4. When the selected music data is music data having two beats per bar as shown in FIG. 10 (d), the selected music data is per bar as shown in FIG. 10 (e). When the music data is music data having three beats, as shown in FIG. 10 (f), the playback speed adjusting unit is also used when the selected music data is music data having five beats per bar. 42 is the same To implement the process. That is, in the case shown in FIG. 10D, the playback speed adjustment unit 42 changes the beat interval b ₁ to beat interval b ₁ ′ = a _AV / 2, and sets the music playback speed based on the music data to The playback speed corresponding to the beat interval b ₁ ′ = a _AV / 2 is set. In the case shown in FIG. 10E, the beat interval b ₁ is changed to beat interval b ₁ ′ = a _AV / 3, and the music playback speed based on the music data is changed to the beat interval b ₁ ′ = When the playback speed corresponding to a _AV / 3 is set and shown in FIG. 10 (f), the beat interval b ₁ is changed to beat interval b ₁ ′ = a _AV / 5, and music based on the music data is changed. The playback speed is set to a playback speed corresponding to the beat interval b ₁ ′ = a _AV / 5.

  The reproduction phase adjustment unit 43 uses the music data selected by the music data selection unit 41 or the reproduction speed adjustment unit 42 so that the beat timing is synchronized with the feature point detection timing by the feature point detection unit 38. The playback timing of the music data after adjusting the playback speed is adjusted. FIG. 11A shows the output waveform of the sensor unit 35 (the same waveform as FIG. 10A), and FIG. 11B shows the music data after the reproduction speed adjustment by the reproduction speed adjustment unit 42. Beat interval (same as FIG. 10C). The reproduction phase adjustment unit 43 and the reproduction speed adjustment unit 42 are examples of the sound data processing unit.

  As shown in FIG. 11B, the beat timing of the music data selected by the music data selection unit 41 or the beat timing of the music data after the adjustment of the reproduction speed by the reproduction speed adjustment unit 42 is the feature point detection. When the time difference Δt is deviated from the detection timing of the feature point P by the unit 38, the reproduction phase adjustment unit 43 causes the time difference Δt to be zero (the beat timing is synchronized with the detection timing of the feature point). Adjust the playback timing. FIG. 11C shows the state of FIG. 11B in which the beat timing is shifted by the time difference Δt with respect to the detection timing of the feature point P, and the beat timing is synchronized with the detection timing of the feature point. It shows that the music playback timing has been adjusted.

  FIGS. 11B and 11C show a playback phase adjustment mode (playback timing adjustment mode) when the selected music data is music data having four beats per measure. However, when the number of divisions of one bar is other than four, for example, in the case shown in FIGS. 10D to 10F, the reproduction phase adjusting unit 43 similarly shows in FIGS. 11D to 11F. In this manner, the beat phase is adjusted so that the beat timing is synchronized with the feature point detection timing.

  FIG. 12 is a flowchart showing the music playback process of the control unit 37.

  As shown in FIG. 12, when the main power source of the exercise apparatus 1 is turned on (YES in step # 1), the feature point detection unit 38 causes the sensor unit 35 to perform a detection operation at a predetermined cycle, and the sensor unit The output signal is fetched from 35 (step # 2). The feature point detection unit 38 determines based on the output value whether or not the captured output signal indicates a predetermined feature point (for example, the state where the seat 2 is located at the foremost position). If it is determined (step # 3) that the output signal does not indicate the feature point (NO in step # 3), the process returns to step # 2, while the output signal indicates the feature point. If it is determined (YES in step # 3), the captured output signal and output timing are stored (accumulated) in association with each other (step # 4).

Then, the feature point interval calculation unit 39 determines whether or not the number of stored output signals has reached a predetermined number (for example, four) (step # 5), and the number of signals reaches the predetermined number. If not (NO in step # 5), the process returns to step # 2, while if the number of signals reaches a predetermined number (YES in step # 5), the feature point interval calculation unit 39 and the average value calculating unit 40, the after the feature point interval was calculated, it calculates an average value a _AV of their feature point interval respectively using each output timing of the predetermined number of output signals (step # 6).

Next, the music data selection unit 41 has music data having a beat interval b satisfying the average value a _AV = b × m (m is a positive natural number) calculated by the average value calculation unit 40, and the music data exists. If not, music data associated with beat data indicating the beat interval closest to the beat interval b is selected from a plurality of music data stored in the music data storage unit 36a (step # 7). ).

Then, the playback speed adjustment unit 42 indicates the beat interval that the music data selected by the music data selection unit 41 is most approximate to the beat interval b that satisfies the average value a _AV = b × m (m is a positive natural number). If the beat data is not associated music data (NO in step # 8), the music data selected so that the beat interval satisfies the average value a _AV = b × m (m is a positive natural number). The beat interval is adjusted (music reproduction speed is adjusted; step # 9).

In addition, the playback speed adjusting unit 42 is associated with beat data indicating the beat interval b in which the music data selected by the music data selecting unit 41 satisfies the average value a _AV = b × m (m is a positive natural number). If the received music data (YES in step # 8), the process of step # 9 is skipped.

  After the processing of step # 8 or # 9, the reproduction phase adjusting unit 43 adjusts the phase of the beat timing (adjusts the music reproduction timing based on the music data) so that the beat timing is synchronized with the feature point detection timing. Then (step # 10), the sound output unit 33 is made to perform a music output operation based on the music data (step # 11).

  Then, control unit 37 determines whether or not the main power supply is turned off (step # 12). If the main power supply is not turned off (NO in step # 12), the process returns to step # 2. If the main power supply is turned off (YES in step # 12), a series of processing ends.

  As described above, in the present embodiment, a predetermined operating point in a series of movements of the exercise device 1 is detected as a feature point, and the beat interval is made to coincide with the feature point interval (the music playback speed is set to exercise). Therefore, the movement of the exercise apparatus 1 and the timing of the beat of the music output from the sound output unit 33 are associated with each other. Thereby, it is possible to make the user feel a sense of unity and exhilaration, or to perform sensory support (assistance) so that the rhythm of the exercise can be easily grasped. As a result, the attractiveness of the exercise device 1 can be improved, and as a result, the user's willingness to use the exercise device 1 can be increased.

  Also, the phase of the beat timing of the music output from the sound output unit 33 is adjusted (the output timing of the music is adjusted) so that the detection timing of the feature point and the beat timing coincide (synchronize). Therefore, it is possible to make the user feel a sense of unity and exhilaration, or to provide sensory support (assistance) so that the rhythm of exercise can be more easily grasped. As a result, the attraction of the exercise device 1 can be further improved, and the user's willingness to use the exercise device 1 can be further enhanced.

  Also, when adjusting the music playback speed and playback phase as described above, a predetermined operating point in a series of movements of the exercise apparatus 1 is detected as a feature point, and the adjustment is performed using this feature point. In contrast, in contrast to the configuration in which a series of movements of the exercise apparatus 1 are sequentially detected and the adjustment is performed based on the detection result, the adjustment is performed with a relatively simple configuration and method. The configuration to be performed can be realized.

  In addition, since the process of adjusting the reproduction speed and the reproduction phase is performed on the music data in accordance with the movement of the exercise device 1, the movement of the exercise device 1 is adjusted in accordance with the music output from the sound output unit 33. The following advantages are obtained as compared to the embodiment.

  In other words, since the operation speed of the exercise device 1 is limited, in the configuration in which the movement of the exercise device 1 is adjusted in accordance with the music output from the sound output unit 33, for example, a song with a fast tempo may be output or When a song is output at a fast tempo, it is considered that the movement of the exercise device 1 cannot be matched, and the music that can be output is limited. However, in this embodiment, such a concern hardly occurs. It has the merit that various kinds of music can be output.

  In this case, the following modifications may be employed instead of or in addition to the embodiment.

  [1] In the above embodiment, both the music playback speed and the playback phase are adjusted. However, even if only the music playback speed is adjusted, a certain effect can be obtained.

  [2] In the embodiment, music data indicating a plurality of music is stored in advance in the music data storage unit 36a, and appropriate music data is selected from the music data. The present invention is not limited to this, and music data is randomly selected, and the music playback speed and playback phase are adjusted for this music data, or only one music data is stored in the music data storage unit 36a. It also includes a mode for adjusting the music playback speed and playback phase for music data.

  In the above embodiment, the expressions (1) and (2) are used not only for changing (adjusting) the beat interval but also as a means for selecting music. When selecting for the purpose or when the music data to be output is determined in advance, the equations (1) and (2) are not used as a means for selecting music, and for the music data, Used only to change (adjust) the beat interval.

  However, when the beat interval indicated by the beat data previously associated with the music data stored in the music data storage unit 36a is significantly different from the feature point interval a, the beat interval adjustment ( When the adjustment of the music playback speed is performed, an unnatural sound (such as a distorted sound) may be output from the sound output unit 33 in some cases.

  Therefore, by preparing music with different beat intervals in advance as in the first embodiment, selection of music with beat intervals greatly different from the feature point interval a is suppressed. Such an unnatural sound output can be avoided.

  [3] Usually, a beat that is periodically repeated in a constant pattern has a strength at a constant period. In particular, an emphasized beat is called an accent.

  Here, in the first embodiment, the feature point interval and the beat interval are matched, or the feature point detection timing and the beat timing are matched, but the accent time interval is called an accent interval. Then, if this accent interval and the feature point interval are matched, or if the feature point detection timing and the accent timing are matched, the sense of unity and exhilaration can be further felt by the user. Sensory support (assistance) can be performed so that the rhythm can be easily grasped. Hereinafter, this embodiment will be described.

  In the present embodiment, in addition to the beat data, accent data indicating the accent interval is also stored in the music data storage unit 36a in association with the music data.

In addition, when the average value a _AV is calculated by the average value calculation unit 40, the music data selection unit 41 appropriately selects music data stored in the music data storage unit 36a based on the average value a _AV. Selected music data, in this embodiment,
a _AV = c × n (n is a positive natural number) (2)
If the music data associated with the accent data indicating the accent interval c satisfying the above is stored in the music data storage unit 36a, the music data is selected (referred to as pattern 3). In addition, when such music data is not stored in the music data storage unit 36a, the music data selection unit 41 has accent data indicating an accent interval that is closest to the accent interval c that satisfies the equation (2). The associated music data is selected (referred to as pattern 4).

In the case of the pattern 4, the playback speed adjustment unit 42 selects the relationship between the accent interval of the music actually output from the sound output unit 33 and the average value a _AV to satisfy the equation (2). A process for changing the accent interval of the music is performed on the music data, and the music playback speed is changed.

That is, as shown in FIG. 13, the accent data associated with the music data read from the music data storage unit 36a has an accent interval c ₁ (a _AV ≠ c ₁ × n () that does not satisfy the equation (2). when n is a positive integer)), the reproduction speed adjusting section 42 detects the accent interval c _{1 'most} similar to the accented interval c ₁ of the accent interval satisfying the formula (2), the accent interval It is set that the music data is reproduced at a reproduction speed corresponding to c ₁ ′.

  The reproduction phase adjustment unit 43 uses the music data selected by the music data selection unit 41 or the reproduction speed adjustment unit 42 so that the timing of the accent is synchronized with the detection timing of the feature points by the feature point detection unit 38. Adjust the playback timing for the music data after adjusting the playback speed.

  FIG. 14A shows the output waveform of the sensor unit 35 (the same waveform as FIG. 13A), and FIG. 14B shows the music data after the reproduction speed adjustment by the reproduction speed adjustment unit 42. The accent interval (same as FIG. 13C) is shown.

  As shown in FIG. 14B, the accent timing of the music data selected by the music data selection unit 41 or the accent timing of the music data after the adjustment of the reproduction speed by the reproduction speed adjustment unit 42 is the feature point detection. When the time difference Δt is shifted from the detection timing of the feature point P by the unit 38, the reproduction phase adjustment unit 43 causes the time difference Δt to be zero (the accent timing is synchronized with the detection timing of the feature point). Adjust the playback timing. FIG. 14C shows the state shown in FIG. 14B in which the accent timing is shifted by the time difference Δt with respect to the detection timing of the feature point P, and the accent timing is synchronized with the detection timing of the feature point. It is a figure which shows having adjusted the music reproduction timing.

  In this way, focusing on the accent in the beat, the feature point interval and the accent interval are matched, or the detection timing of the feature point and the accent timing are synchronized. The user can feel a bodily sensation and exhilaration, and can provide sensory support (assistance) so that the rhythm of exercise can be easily understood.

  The music playback speed is adjusted (matching between the feature point interval and the accent interval) and the playback phase is adjusted (synchronization between the feature point detection timing and the accent timing). Even if only the speed is adjusted, a certain effect can be obtained. The beat and accent are examples of sound elements and are examples of temporal elements of music.

  [4] If a function for outputting video on the display unit 32 in accordance with music is installed, the user can exercise while receiving not only auditory stimuli but also visual stimuli. Since the exercise can be performed in a state of receiving more stimulation, the attractiveness of the exercise device 1 can be further improved. In this case, as shown in FIG. 15, the exercise apparatus 1 includes a video data storage unit 36 b that stores video data (hereinafter referred to as video data) displayed on the display unit 32, and the control unit 37 stores video data. A video output control unit 44 may be provided that reads the video data from the unit 36b and causes the display unit 32 to perform video display based on the video data.

  Also, video data associated with the beat interval and accent interval of music is prepared, and the video output control unit 44 generates a video in conjunction with the sound output from the sound output unit 33 based on the video data. By displaying on the display unit 32, the user can feel a sense of unity and exhilaration of sound (music), video, and exercise.

  Furthermore, in the first embodiment, the function of outputting music in accordance with the movement of the exercise apparatus 1 has been described. In addition to this function, the video output control unit 44 also adjusts the video in accordance with the movement of the exercise apparatus 1. For example, when the image displayed on the display unit 32 is relatively largely changed at the detection timing of the feature points, the user can feel a sense of unity and exhilaration of sound (music) and the image and exercise, Sensory support (assistance) can be performed so that the rhythm of movement can be easily understood. Examples of a mode in which the image displayed on the display unit 32 is changed relatively greatly include a mode in which the size of a certain character is enlarged, a mode in which the display color is changed to a completely different color, and a mode in which the character is changed to another character. Etc. are assumed as an example.

  Here, the exercise device 1 provided with the display unit 32 is assumed. However, for the exercise device 1 that does not include the display unit 32, the exercise device 1 is imaged via a video data input / output terminal or a cable. It is good to comprise the structure which can be connected with an apparatus and outputs the said video data to this image apparatus.

  [5] The exercise device 1 may be equipped with a function that allows the user to select a song. In this case, with respect to the music data of the selected music, the playback speed and playback phase are adjusted in accordance with the movement of the exercise device 1. The exercise apparatus 1 is generally provided with a plurality of selectable exercise load levels. In this case, each level and music data are stored in association with each other, and the exercise load level is stored. This case is also applicable to a configuration in which the music to be output is automatically determined when the user selects.

  [6] In this case, the object to be matched with the movement of one of the exercise devices is not limited to music. For example, percussion instruments (drums, drums, cymbals, etc.), wind instruments (flutes, trumpet, etc.), stringed instruments (violins, koto) Etc.) may be an output sound of one or a plurality of musical instruments, a clapping sound, or an animal cry, which does not express a melody and simply expresses only a rhythm or tempo.

  [7] Although the acceleration sensor is employed as the sensor for detecting the motion of the exercise device 1 in the above embodiment, other sensors may be used. In the embodiment, the acceleration sensor is used to detect the acceleration of the swing motion in the front-rear direction of the exercise apparatus 1. However, for example, the acceleration of the swing motion in the left-right direction may be detected. .

  Further, in the embodiment, the inflection point P (when the exercise device 1 is located at the foremost end) where the output turns from increasing to decreasing is adopted as the feature point, but this is not limiting, and the output of the sensor unit 35 is not limited to this. It is also possible to adopt an inflection point that changes from decrease to increase and an inflection point at which the output polarity of the sensor unit 35 changes from positive to negative or from negative to positive. In short, as the feature point, a change point or an inflection point in at least one of the movement direction, the movement speed, and the movement acceleration of the exercise apparatus 1 may be adopted.

  [8] For example, when the movement of the exercise apparatus 1 is relatively intense, the volume is adjusted in accordance with the movement of the exercise apparatus 1 such that the volume is increased as compared with a relatively gentle case. Good. The volume is an example of a sound element.

  [9] In the embodiment, when the swing operation by the swing mechanism 3 is started, the music playback speed and playback phase are always changed according to the swing operation until the main power is turned off. However, such a mode may be provided.

  [10] Instead of the formula (1), a = b / m (m is a positive natural number) may be adopted, and instead of the formula (2), a = c / n (n is A positive natural number) may be adopted.

  [11] In the above-described embodiment, beat data is associated with music data in advance, and the beat of music is obtained from the beat data. However, the present invention is not limited thereto, and beat data may not be provided. In this case, music beats may be detected from the music data. As a beat detection method, for example, the method disclosed in the reference of “Kanto Gakuin University, Department of Electrical and Electronic Engineering, Kimura New Laboratory“ Rhythm Extraction for Automatic Accompaniment ”” can be employed.

  That is, as shown in FIG. 16, the exercise device 1 generates sound signal data from the sound file, cuts the high sound region by using a low-pass filter with respect to the sound signal data, and then reduces the noise. A peak interval is obtained based on the peak threshold and the dead zone, a time-series average AVPI of the peak interval in a predetermined period is obtained, and 60 / AVPI is calculated as a beat.

  Alternatively, the exercise device 1 generates sound signal data from the sound file, cuts the high sound region by using a low-pass filter for the sound signal data, reduces noise, and then uses a predetermined time lag (T). The autocorrelation is calculated by the following formula (3),

  The autocorrelation values are developed in time series, a peak interval is obtained based on a predetermined peak threshold, a time series average AVPI of peak intervals in a predetermined period is obtained, and 60 / AVPI is calculated as a beat.

  In addition to these detection methods, `` Masataka Goto: An Audio-based Real-time Beat Tracking System for Music With or Without Drum-sounds, journal of New Music Research, Vol. 30, No. 2, pp. 159- 171, June 2001. "can also be used.

  That is, as shown in FIGS. 17 and 18, the exercise device 1 converts the input acoustic signal into a frequency spectrum, divides it into, for example, seven frequency bands, obtains the pronunciation time, and summarizes it as a pronunciation time vector. Using t and frequency f as parameters, the following equations (4) to (6)

  Considering the speed of sound intensity increase and the sound intensity of adjacent time and frequency, the degree of pronunciation (D) (t) is obtained, the peak is selected based on the degree of pronunciation D (t), and the time of occurrence of the selected beat is beaten. The time is calculated, and 60 / BI is calculated as a beat from the beat time interval (BI).

1 is an external perspective view showing a first embodiment of an exercise device according to the present invention. It is an external appearance side view of an exercise device. It is a side view which shows the internal structure of an exercise device. It is a side view which expands and shows a rocking | fluctuation mechanism. It is a top view of a rocking mechanism. It is a rear view of a rocking mechanism. It is a figure for demonstrating the motion of a seat part. It is a block diagram which shows the electric constitution of an exercise device. It is a figure which shows the rocking locus when rocking | fluctuating operation | movement of an exercise device is seen from upper direction. It is explanatory drawing of the adjustment process by the reproduction speed adjustment part. It is explanatory drawing of the adjustment process by the reproduction | regeneration phase adjustment part. It is a flowchart which shows the music reproduction process of a control part. It is a figure which shows a deformation | transformation form. It is a figure which shows a deformation | transformation form. It is a figure which shows a deformation | transformation form. It is explanatory drawing of the detection method of a beat. It is explanatory drawing of the detection method of a beat. It is explanatory drawing of the detection method of a beat.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Exercise apparatus 2 Seat part 3 Swing mechanism 4 Elevating mechanism 6 Stirrup 7 Handle 9 Pedestal 19 Motor 32 Display part 33 Sound output part 34 Input operation part 35 Sensor part 36 Storage part 36a Music data storage part 36b Video data storage part 37 Control unit 38 Feature point detection unit 39 Feature point interval calculation unit 40 Average value calculation unit 41 Music data selection unit 42 Playback speed adjustment unit 43 Playback phase adjustment unit

Claims (19)

An exercise device comprising a movable part that performs an operation of applying an exercise load to a user, wherein the exercise load applied to the user is variably configured,
An operation detection unit for detecting the operation of the movable unit;
A sound data processing unit that obtains sound data and performs an adjustment process for adjusting a sound element on the sound data based on a detection signal output from the motion detection unit;
An exercise apparatus comprising: a sound output unit that performs a sound output operation based on the sound data after the adjustment process. The operation detection unit detects a predetermined operation point as a feature point in a series of operations of the movable unit,
The exercise device according to claim 1, wherein the sound data processing unit performs the adjustment processing based on a detection signal of the feature point by the motion detection unit.   The exercise device according to claim 2, wherein the characteristic point is a change point or an inflection point in at least one of an operation direction, an operation speed, and an operation acceleration of the movable part.   The exercise device according to any one of claims 1 to 3, wherein the sound data is music data constituting music.   The exercise device according to claim 4, wherein the sound element is a temporal element of the music. The temporal element of the music is the beat
The adjustment process includes a beat interval adjustment process for adjusting a beat interval for the music data based on a time difference in detection timing of each feature point detected in time by the motion detection unit. The exercise device described in 1. The beat interval adjustment process
a = b × m or a = b / m (m is a positive natural number)
The exercise device according to claim 6, which is a process of changing to a beat interval b that satisfies A music data storage unit that stores one or a plurality of music data associated with beat data indicating the beat interval in advance;
The sound data processing unit acquires music data having the same beat interval as the time difference a of the feature point detection timing from the music data storage unit as music data to be output by the sound output unit, and outputs the sound The exercise device according to claim 6, wherein the exercise device outputs to the unit. When the music data processing unit has no music data having the same beat interval as the time difference a in the music data storage unit,
a = b × m or a = b / m (m is a positive natural number)
Music data associated with beat data indicating the beat interval closest to the beat interval b satisfying is acquired from the music data storage unit as music data to be output by the sound output unit, and the acquired music data On the other hand, the exercise device according to claim 8, wherein the process of changing the beat interval to the beat interval b is performed as the beat interval adjustment process.   10. The sound data processing unit according to claim 6, wherein after the beat interval adjustment processing, the sound data processing unit performs phase adjustment processing for adjusting the beat phase to synchronize the beat timing with the feature point detection timing by the motion detection unit. The exercise device according to any one of the above. The temporal element of the sound is an accent that is an emphasized beat among beats that are periodically repeated in a certain pattern,
6. The adjustment process includes an accent interval adjustment process for adjusting an accent interval for the music data based on a time difference between detection timings of feature points detected in time by the motion detection unit. The exercise device described in 1. The accent interval adjustment process includes:
a = c × n or a = c / n (n is a positive natural number)
The exercise device according to claim 11, which is a process of changing to an accent interval c that satisfies A music data storage unit for storing one or a plurality of music data in which accent data indicating the accent interval is associated in advance;
The sound data processing unit acquires music data having the same accent interval as the time difference a of the feature point detection timing from the music data storage unit as music data to be output by the sound output unit, and outputs the sound The exercise device according to claim 11, wherein the exercise device outputs to the unit. When the music data processing unit has no music data having the same accent interval as the time difference a in the music data storage unit,
a = c × n or a = c / n (n is a positive natural number)
The music data associated with the accent data indicating the accent interval closest to the accent interval c satisfying is acquired from the music data storage unit as the music data to be output by the sound output unit, and the acquired music data is included in the acquired music data. On the other hand, the exercise device according to claim 13, wherein a process of changing an accent interval to the accent interval c is performed as the accent interval adjustment process.   15. The sound data processing unit performs phase adjustment processing for adjusting the phase of the accent so as to synchronize the accent timing with the detection timing of the feature point by the motion detection unit after the accent interval adjustment processing. The exercise device according to any one of the above. A video data storage unit for storing video data of a video to be displayed on a predetermined display unit;
The exercise device according to claim 1, further comprising: a video output control unit that displays video on the display unit based on video data stored in the video data storage unit. The video data is for generating a video associated with a sound element generated by the sound data,
The exercise device according to claim 16, wherein the video output control unit causes the display unit to display the video so as to be interlocked with a sound output from the sound output unit. The operation detection unit detects a predetermined operation point as a feature point in a series of operations of the movable unit,
The exercise device according to claim 16 or 17, wherein the video output control unit changes a video displayed on the display unit when the feature point is detected by the motion detection unit.   The exercise device according to any one of claims 16 to 18, further comprising a display unit that displays the video.