Abstract: A resistance chair with wheels assists users with performing correct abdominal crunches by guiding the user's effort. The resistance chair includes a seat connected to a hinged back with back support that extends to support the user's back and assist in the crunch recovery following the crunch extension.

Abstract: An exercise apparatus comprising a bench and a dorsal support, wherein the apparatus further comprises a movable upper torso support, wherein the apparatus is suitable to support the lower torso of a user by means of the bench and the dorsal support and that portions of the upper torso of the user can be lifted relative to the lower torso by the movable upper torso support. In another aspect, the invention relates to a method of exercising the upper torso by providing an apparatus which supports the lower torso and which is suitable to guide a force exerted by a user's legs to the upper torso of a user and uses this force to induce a stretching motion of a portion of the upper torso relative to the lower torso of a user.

Abstract: An abdominal crunch board for an inclinable exercise device includes a handle bar including opposite terminating engagement portions; a pair of opposing brackets coupled to the opposite terminating engagement portions, the pair of opposing brackets and the opposite terminating engagement portions forming a frame; a padded support coupled to the frame; and the opposing brackets are removably attachable to an adjustable incline of the inclinable exercise device at one or both of a location between a first end of the adjustable incline and a user support platform of the inclinable exercise device and a location between a second end of the adjustable incline and the user support platform.

Abstract: Exercise assemblies having self-adjusting pad devices are disclosed. In one embodiment, an exercise assembly includes a load and a force-transferring assembly operatively coupled between the load and at least one exercise station such that a training force applied to the at least one exercise station induces an associated force on the load. The at least one exercise station includes at least one pad member slideably coupled to a support member and configured to adjust to a lateral position along the support member corresponding to a portion of the user's body. The at least one pad member may have an attachment opening that includes a first portion sized to receive a shaft portion of the support member, and a second portion sized to receive a retaining portion of the support member, the retaining portion being larger than the shaft portion of the support member.

Abstract: A machine and method of stretching and exercising the human body, specifically the head, neck, and upper shoulder region. The machine employs three separate user-controlled actuators to allow the user to move and adjust her head, neck, and upper shoulders to almost limitless positions and with utmost precision, thereby effectively stretching and exercising the user's occipital region to achieve the desired comfort level. Because the user is in control of the precise actuator movements, and hence the exact positioning of her occipital region, the machine is much easier and safer to operate and more effective than other exercise and/or physical strengthening devices.

Abstract: An exerciser including a movable body carriage mounted on an exerciser frame for movement along tracks provided by the frame. A resilient foot engaging assembly extends from the exerciser frame. The resilient foot engaging assembly is adapted to be engaged by the user's feet to absorb the energy of movement in a first direction and to provide the user with a bouncing movement, which the user may translate into a movement of the movable body carriage in the opposite direction. The resilient foot engaging assembly may be provided as an attachment and retrofitted to existing exercisers. The resilient foot engaging assembly includes a unit mounting frame assembly and an independent usable exercising unit, such as an inflated dome or trampoline unit, removably secured thereon. The exerciser may include a resilient resistance system coupled to the movable body carriage and a set of pull lines with user grips trained over pulleys carried by the exerciser frame.

Abstract: An exercise pedal includes a plate member including a receiving cavity fixed on a bottom surface thereof, with the receiving cavity including a plurality of partitions to space a number of recesses. A seat formed in a semicircle shape is retained to the recesses to be horizontal or to be vertical either upside down or right side up according to the demands of the user, such that the plate member and two seats are capable of being used solely or together to vary exercise motions. Furthermore, the seats are placed in the first recesses of the plate member to reduce storing size and to be portable easily.

Abstract: A rectangular workout bench with removable legs for use directly on the floor or raised on legs has an inflatable flexible air filled plastic material cushion work out area allowing a person to lay on for physical therapy, strength training and balance. The rectangular shape allows spine and neck support while the instability of the air filled cushion allows muscles to activate. Beginners use the workout cushion directly on the floor and advanced workouts are on the elevate elevated bench with accessible footrests.

Abstract: A sit-up exerciser has a base, a seat and a footrest assembly mounted on the base, and a linkage assembly mounted between base and the seat. The linkage assembly has a handle arm, a back arm and a linking rod connected to each other. At least one rear resilient element is connected between the seat and the back arm and at least one front resilient element is connected between the footrest assembly and the handle arm. The resilient elements assist in performing sit-ups and the back arm supports a neck and vertebral column to prevent injury and damage.

Abstract: An exerciser includes a main frame having a support section. A seat is mounted on top of the support section and includes front and rear ends spaced in a first direction. Two handgrips are mounted on opposite sides of the seat and spaced in a second direction perpendicular to the first direction. A first roller mechanism includes a first roller support mounted to the support section and at least one first roller rotatably supported by the first roller support. A second roller mechanism includes a second roller support mounted to the support section and at least one second roller rotatably supported by the second roller support. The seat is intermediate the first and second roller supports in the first direction.

Abstract: A dance pad having a plurality of conductive panels and incorporating a design which prevents electrostatic discharge from damaging electrical circuitry is disclosed. The dance pad provides the user with a tactile responsive feel, due to the use of resilient spacers and has a tapered perimeter to prevent tripping. The dance pad further incorporates a five handle perimeter design and a means for providing performance feedback to the user which can be audio, visual or vibrational.

Abstract: An oscillation-type exercise device is provided with a pair of reins on the right and on the left disposed in front of a user seated on a seat portion. Base ends of the pair of the reins are coupled to a pair of extensible mechanisms housed inside the seat portion. Handle portions to be gripped by the user are attached to tip ends of the pair of reins. Each extensible mechanism is configured to change the length of the reins, that is, each extensible mechanism causes the reins to generally extend and retract.

Abstract: An adjustable spinal rehabilitation device includes a bed frame, three soft pads thereon, five elevation adjustment mechanisms provided between the bed frame and the soft pads for adjusting inclinations of the soft pads, an inverted U-shaped frame provided outside the bed frame and coupled thereto from above, two tractors provided outside the inverted U-shaped frame, and five fastening belts. Four fastening belts are tied to the bed frame bilaterally for fixing in position a rehabilitation patient. Cords coupled to two fastening belts extend from the tractors and penetrate holes of the inverted U-shaped frame so as for the cords to be coupled to pulley trains disposed on rails provided on inner sides of the inverted U-shaped frame, respectively. The tractors pull the rehabilitation patient to increase inclination of the rehabilitation patient's thoracic and lumbar spine to a required angle and pull the rehabilitation patient's cervical spine from a required angle.

Abstract: An auxiliary exercise equipment comprises a footrest for supporting a foot of a user. The footrest is configured so that a part of the footrest relatively retreats from a remaining part of the footrest and thereby is made apart from the foot while the remaining part of the footrest supports the foot.

Abstract: The present invention relates to a health machine for reducing abdominal fatness, and the health machine for reducing abdominal fatness according to the present invention includes a bottom plate fixed to a bottom surface; a first driving motor fixed to the bottom plate; a pair of bearing support plates fixed to the bottom plate with a space between them; a pair of axis bearings fixed to an upper side of each of the pair of bearing support plates; a crank axis which penetrates through the pair of axis bearings fixed to each of the pair of bearing support plates with a space between them, and is vertically rotated by a driving force of the first driving motor; a support bearing for elevation plate connected to a part of the crank axis; an elevation plate a lower side of which is connected to an upper side of the support bearing for elevation plate; a second driving motor fixed to the elevation plate; a rotation rod which is supported on the elevation plate in a rotating manner, and is rotated horizontally by a

Abstract: A reformer includes a combined mount that serves to attach and support a foot bar assembly, a jump board, and a spring bar. The combined mount is easily and quickly attached to a side rail of a frame of the reformer. A carriage of the reformer include a combined wheel axle and strap attachment point, which eliminates the need for a separate strap attachment bracket. The carriage also include side wheels which are mounted on the sides of the carriage, and which are biased outward so that they contact the side rails of the frame of the reformer.

Abstract: An apparatus for stretching at least the hamstring muscle of a user's leg is provided having a first support member for supporting the back of the leg of the user at or near the knee at least at the commencement of stretching and a second support member for engaging the back of the lower leg portion of the user during stretching. This first support member is disposed in front of the user during stretching of the hamstring muscle of the user's leg and the second support member is displaceable generally in a direction to stretch the hamstring muscle of the user's leg. An actuator operable by the user during use of the apparatus can be used for displacing at least the second support member generally in a direction to cause stretching of at least the hamstring muscle of the user's leg.

Abstract: An exercise apparatus includes a flexible panel that has a top side, a bottom side, a first end edge, a second end edge, a first lateral edge and a second lateral edge. A strap is integrally coupled to the first end edge and extends away therefrom. The strap has a distal end with respect to the panel. A coupler releasably secures the strap in a closed loop. A spherical ball is removable positioned in the closed loop. A person may sit upon the top side and utilize the closed loop as a lower back support while exercising.

Abstract: An exercise device for achieving desired abdominal contractions during exercise movement includes a back support and a pair of leg blades removably attached to the back support. The device includes an adjustable back blade attached to the back support and extending upward from the lower end along a centerline of the back support, and a neck support assembly attached to the back blade.

Abstract: An exercise assisting device comprises foot supports having foot support surfaces respectively, a seat, a seat height adjusting unit, and a seat driving unit. The foot support is provided for bearing foot of a user. The seat is shaped to have a contact surface for supporting buttocks of the user when the user places the feet onto the foot support surfaces. The seat height adjusting unit is configured to move the seat toward a vertical direction and also toward a front-back direction in order to position the seat at a standard position which is located at a standard height from the foot support surface in the vertical direction. Consequently, a knee of the user has a predetermined angle. The seat driving unit is configured to swing the seat about the standard position so as to vary weight of the user which acts on legs of the user. The exercise assisting device further comprises a load regulating means.

Abstract: Devices and methods providing for improved training of isolated regions of the human physiological system are disclosed and described herein. The devices and methods provide isolated training of muscle groups that may be transferrable to the sport of cycling or other athletic activities. An exercise apparatus is disclosed to enable training. In an embodiment, the exercise apparatus includes a front portion adapted to provide a vertically supported hand support assembly. The apparatus further includes a back portion adapted to be coupled to the front portion. The back portion is constructed to present an exercise support member with at least one exercise support surface adapted to receive an exercise ball such that a user may grip at least one gripping member presented by the hand support assembly and position him or herself upon the exercise ball to perform exercises according to various aspects of the invention described herein.

Abstract: The exercise assisting device includes a support unit (1) configured to bear a user's body and a drive device (2). The support unit (1) includes a pair of foot supports (4) having a bearing member (40) configured to bear the user's left foot and right foot respectively. The drive device (2) is configured to drive the support unit (1) to move the user's body so as to vary a load applied to user's lower limb. The exercise assisting device further includes a tilting device (A). The tilting device (A) includes a load detection unit (5), a tilting mechanism unit (6), and a control unit (8). The load detection unit (5) includes two load sensors (50) provided to an outer portion (40a) and an inner portion (40b) of the bearing member (40) respectively. The tilting mechanism unit (6) is configured to tilt the bearing member (40) inward or outward with regard to the user's foot.

Abstract: An exercise system preferably having a mat dimensioned to support a user stretched out on the floor. The mat has a central fastening band disposed widthwise across the mat. A belt fits around the midsection of the user adapted to be aligned with and at least partially adhere to the fastening band of the mat. The user is intended to perform certain flexibility exercises with the belt in contact with the fastening band. If the user lifts her midsection off of the mat during such exercises, the removal of the belt makes an audible noise (and the mat tugs on the user) to cue the user to reposition her body flat on the mat. The fastening band preferably includes one half of a hook-and-loop-type fastener and the belt comprises the other mating half. Alternatively, one or both of the band and belt may be provided with an adhesive material.

Abstract: Presented is a yoga exercise mat for use when performing yoga poses, or other floor exercises utilizing various disciplines. Words are presented on the mat surface which bring to the user an inspirational message, which is achieved by reading the inspirational indicia, thinking it, or just by seeing it. The mat is elliptical in shape to convey a sense of harmony, flow, and balance, and has a color which is a soothing and mood altering color.

Abstract: An exercise device for exercising the human body; said device including a first lower platform supported on rolling elements for omni-directional movement over a supporting surface; said device further including a second upper platform rotatably mounted to said first lower platform; said exercise device adapted for support of at least one portion of the body of a user; a further at least one portion of the body of said user in contact with said supporting surface.

Abstract: A chest and arm exercising apparatus includes a frame with a pair of front legs, pair of rear legs and a pair of arms extending between the front and rear legs. The rear legs each have an upper end positioned vertically above the arms. A rear bar is attached to and extends between the upper ends of the rear legs. A front bar is attached to and extends between the front legs. A foot engaging member includes an elongated rod and a support plate that is attached to the rod to receive feet of a person performing pushups. The rod is horizontally mounted to and extends between the rear legs. A supporting assembly is positioned adjacent to the front legs and is graspable by a person doing pushups while the person's feet are positioned on the foot engaging member.

Abstract: An inflatable exercise apparatus having inflatable bladder segments in fluid communication with each other. The inflatable exercise apparatus includes a valve control mechanism that may control the flow of a fluid between the bladder segments, thereby allowing for the adjustment of the pressure in each bladder segment. Adjusting the pressure in each bladder segment may allow the user to vary the levels of resistance during exercise. The bladder segments may be operably connected to bases. The bladder segments may have a plateau that is configured to accommodate each user's stance dimension, along with ridges to assist in securing the feet of the user in a neutral position. The apparatus may also include band brackets for the attachment of other exercise devices, for example exercise bands or balancing devices. The bases may be pivotably connected so as to allow the apparatus to fold to accommodate a storage state.

Abstract: An exercise device capable of simultaneously exercising a plurality of muscle groups, which includes an exercise chair mounted to a base, the exercise chair having a pivotally-resistant seat back. The exercise device further includes large, curvilinear conduits through which pass adjustably-resistant elastic bands with grips fixedly attached to the elastic bands proximate the upper and lower ends of the curvilinear conduits, which curvilinear conduits are laterally spaced, one on each side of the exercise chair. The exercise device further includes a resistive foot platform positioned at the front end of the base, which resistive foot platform is moveably engaged with the exercise chair. The exercise device further includes a resistive seated-row grip positioned at the front end of the base that permits cardiovascular exercise. The exercise device further includes rotatable and rocking latches for quickly changing from between one or more differently-tensioned resistive elements.

Abstract: A combined anaerobic and aerobic exercise system comprises a multi-part frame, for example a telescoping frame, or a pivoting frame. The aerobic system may include an elliptical exercise device, while the anaerobic system may include a cable-based system wherein resistance is adjustable. An electronic console system at the exercise system allows a user to view progress in both anaerobic and aerobic workouts, and to send input signals that adjust anaerobic and aerobic resistance mechanisms.

Abstract: This invention produces an exercise assisting apparatus which is configured to vary user's weight which acts on the user's leg and the user's buttocks at a great ratio. The exercise assisting apparatus comprises a base, a pair of foot supports, and a pair of guides. A pair of the foot supports is configured to bear the user's left foot and the user's right foot respectively. Each guide comprises a guide rail for guiding each the foot support. Each the guide rail allows each the foot support to move along the front-back direction. Each the guide rail is configured to swing about one of a front-back axis, a lateral axis, and a vertical axis. The front-back axis extends along the front back direction of the base. The lateral axis extends along a lateral direction of the base. The vertical axis extends along a vertical direction.

Abstract: To provide an exercise assisting apparatus that is capable of stimulating user's feet by means of an external physical approach and effortlessly and effectively training the muscles to balance and stay on the feet. The exercise assisting apparatus of the present invention, therefore, has a foot-support 2 configured to support a user's feet; and a plurality of airbags 5 disposed respectively on areas on an upper surface of the foot-support 2, which come into contact with soles of the user's feet, each of the airbags being configured to have its top vertically movable, wherein the airbags 5 are arranged to move in cooperation with each other.

Abstract: An exercise apparatus that lies flat on the floor having a back rest rises up when supported by two springs. The lower part of the back and buttocks lie horizontal while the upper part of the back is inclined at an angle to the horizontal. When not in use, the upper back rest folds down flat so that the device can be stored under a bed. The two springs provide back support when the individual is in the reclining position. However, as a person goes from a sitting position to a reclining position, when his or her shoulders contact the back rest, the springs compress and then expand to assist the individual in rising up. The device has two specially designed positionable foot rests with straps to provide a place for the individual to place his or her feet.

Abstract: An exercise machine which has a base with at least three spaced apart legs and two spaced apart handles attached to the base. A rocker assembly that includes a rocker fastener and first and second sets of spaced apart brackets is provided where the second set of brackets rotates relative to the first set of brackets along a longitudinal axis of rotation. The longitudinal axis of rotation passes between the handles and is substantially parallel to the handles and the second set of brackets rotates only about the longitudinal axis of rotation. The first set of brackets is secured to the base and the second set of brackets is secured to the underside of a rotation assembly. The rotation assembly is coupled to a seat to enable rotation of the seat relative to the second set of brackets. The rotation assembly includes a stop to limit rotation of the seat.

Abstract: This aims to provide passive exercise equipment capable of securing constant sense of use so as to avoid variation in depressing feel against sole-surmounted parts irrespective of body type difference among users. The equipment has a seat 2 for resting a user M on the buttocks, right and left footstools 3 for resting the right and left soles of user M sitting on seat 2 on, and a seat driver 5 for changing the position of seat 2 position to change load balance added to seat 2 and footstools 3 by user M, thereby changing the user's own weight acting on the legs. Each footstool 3 includes a sole-surmounted part 4 which a sole is placed on and meanwhile can be moved up and down, an elastic device 6 for biasing sole-surmounted part 4 upward; and a bias adjuster 7 for adjusting an elastic coefficient of elastic device 6.

Abstract: A resistance chair with wheels assists users with performing correct abdominal crunches by guiding the user's effort. The resistance chair includes a seat connected to a hinged back with back support that extends to support the user's back and assist in the crunch recovery following the crunch extension.

Abstract: Equipment and methods for exercise of humans are described. An exercise apparatus typically comprises a frame structure that includes a base member that supports a seat with a backrest that can be reclined. There are forward and rear vertical risers that support transverse members. Hooks may be operatively secured to the vertical risers and the transverse members. Generally there is a rotary drive mechanism that moves a left foot cradle and a right foot cradle. There is typically a right hand grip and a left hand grip that are operatively secured to right and left hand cords respectively, and the cords may be operatively secured to the hooks using pulleys. Typically the right hand cord is operatively secured to a right rotary attachment and the left hand cord is operatively secured to a left rotary attachment. Various methods of providing exercise are described using various configurations of the exercise apparatus.

Abstract: A portable article with indicia displayed thereon for use in exercising includes a structure, the structure having a surface, the surface including a plurality of different exercises visibly displayed thereon. The indicia may be displayed on the surface beneath each of the different exercises to facilitate exercise.

Abstract: A liquid weight system for a bench press and for stations of a home gym comprises barbells and having hollow portions and expandable disc-bladders which are weight adjustable by means of a utilization of varying levels of liquid supplied from a liquid tank system. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: An exercise machine has resilient elongate members for providing balanced resistance in the form of elongate resilient members oriented horizontally such that the intermediate portion of the elongate members contact a fulcrum of the exercise machine. The user adjusts the amount of resistance provided by capturing different combinations and members of resilient elongate members. A cable and pulley system ensures a long stroke so that the user can perform a wide variety of exercises in comfortable positions.

Abstract: An exercise assisting apparatus is capable of roughly adjusting a user's knee bending angle generally in accordance with a user's physique followed by a further adjustment in account of individual differences. The exercise assisting apparatus includes a seat supporting buttocks of a user M and a foot base supporting the bottom of the user's feet, and is arranged to swing the seat for urging muscle contraction of the user's legs. An elevator mechanism 60 regulates a position of the seat. A display and manipulator unit 32 has a physique designating section 81 provide a plurality of classes classified according to the user's height, and a moving direction instructing section 82 with pushbuttons which instructs the moving direction of the elevator mechanism 60.

Abstract: An oscillation platform includes a base having four first pivot holders thereof and a swinging bar respectively pivotally connected to each of the first pivot holders, a motor, a transmission shaft pivotally mounted in the base and rotatable by the motor and having an eccentric rod at each of the two ends, two first links respectively pivotally coupled between the eccentric rods of the transmission shaft and two swinging bars, two second links respectively pivotally coupled between the eccentric rods of the transmission shaft and the other two swinging bars, and a platform, which has two second pivot holders, two connection members respectively pivotally coupled to the second links and two third links respectively pivotally coupled between the second pivot holders and the first links.

Abstract: The present invention relates to an exercising apparatus for stretching of the calf muscle, comprising a foot support arranged with an inclination (?). On one side on the foot support a bar extends in a vertical direction and is rotatably arranged in a joint on the foot support. The bar comprises a handle part and a supporting part. The supporting part extends at least around a part of the calf, where stretching of a calf muscle on the user can be achieved by moving the bar forward towards a first part of the foot support while a heel part of the user is secured at the foot support.

Abstract: A foot plate device for a training machine (1) for strength training and rehabilitation includes a frame, a user seat (46), foot plate element (2) pivotably supported by the frame, a weight package element (4) in which a pre-determined number of weights in a weight stack (8) can be selected and be lifted and lowered, alternatively, and connection element (26, 28, 40) which are connected to the foot plate element and the weight package element and by element of which the selected pre-determined number weights can be lifted and lowered, the foot plate element (2) having a foot receiving plate (18) and two side members (19, 20) at each lateral side of the plate and directed away from the plate towards the seat and the foot plate element (2) being supported at pivot points (30, 31) provided on the side members.

Abstract: A method of using an adjustable user support platform with an inclinable exercise device includes providing an adjustable user support platform movably attached to an adjustable incline of the inclinable exercise device for movement of the adjustable user support platform along the adjustable incline, the adjustable user support platform including a support platform frame with a support platform and a support frame, the support platform frame operably coupled to the support frame for adjustably inclining the support platform frame with support platform relative to the support frame; inclining the support platform frame with the support platform relative to the support frame to a desired tilt angle; and securing the support platform frame with the support platform at the desired pivot angle relative to the support frame.

Abstract: A leg press machine has a floor engaging main frame, a user support pivot, a user support assembly pivotally mounted on the main frame via the user support pivot, and a pivotally mounted exercise arm assembly having a main exercise arm and a user engaging footplate. A connecting link, which may be a direct connection between the user support and exercise arm, translates movement of the exercise arm assembly to movement of the user support assembly so that pivotal movement in the exercise arm assembly results in a self-aligning, pivoting movement of the user support assembly.

Abstract: An exercise chair primarily directed to employing an exercise method, with foot bars, high bars, and a foldable configuration. The seat is supported by a plurality of support elements, at least some of which are hingeably connected with the seat, so that the chair can be folded into a compact shape for storage or transport. The independent foot bars may each be attached to a lever that is hingeably coupled with one or more of the support elements. The position of the foot bars may also be adjustable by extending out of the levers and locking into the desired position. One or more resistance elements may be removably attached to a location below the chair seat, and individually connected with the levers via an adjusting assembly that can either slide or be placed in pre-set mounting locations along the lever to provide variable resistance, or can be equipped with a turnbuckle to provide varying resistance.

Abstract: An exercise apparatus is designed specifically to provide a cross training apparatus for mixed martial arts training. The exercise apparatus combines separate training methodologies and apparatuses that are desirable for mixed martial arts training, then arranges each of those apparatuses into a desired spatial orientation at separate stations. Stations include a close combat station, two stations that are directed upper body strength training, and a core training station. Users of the apparatus go through an exercise routine at each station, then move immediately to the next station and go through a routine for that station. The exercise routines may be timed.

Abstract: One embodiment of a portable acrobatic training apparatus (I) with which to support and instruct athletes learning back handsprings having opposing flat vertical ends (16), a resilient arcuate uppermost surface (10), a flat horizontal base 12), and a convex near surface (14). Said trainer apparatus is of approximate elliptical shape, rests on its base until intentionally activated by user, is self-limiting rotationally and returns to start position automatically following each usage.

Abstract: An exercise device is disclosed that accommodates the kinds of stretching and toning exercises that are possible with a ball. The device comprises a stable support structure and a padded bench (which padded bench effectively serves as a portion of a ball) that rocks back and forth on the stable support structure safely and predictably in response to the user's movements. The stable support structure can take a variety of different forms, including an A-frame geometry, a triangular geometry, a T-shaped geometry, and in the form of a pedestal base. A user, during exercise, can support part of his weight on the bench and cause the bench to rock back and forth by alternately relaxing and contracting selected muscles.

Abstract: The invention has an object of providing an exercise assisting device which allows the user's thigh to contract while having a simple structure with low manufacturing cost. The device comprising a seat member and a seat drive unit. The seat member has a bearing surface configured to support buttocks of a user with one' feet placed on a predetermined foot rest. The seat drive unit is configured to activate a driving source to displace the seat member in such a manner as to vary a user's own weight acting on legs of the user. The seat drive unit swings the seat member at least along a lateral direction.