Abstract: Ski simulation device has at least two arching rails parallel each other on a sloped plane elevated at an angle of a variable degree, joined to frame structure which includes handgrip and cross rail, arching rails providing track; a carriage rides in side-to-side movement on track; whereas carriage on which platform is mounted around axis, whereas platform on which two cradles each is mounted around its axis, whereas cradles wherein two rocking footrests are nested; resistance members providing a constraint on carriage as it rides on track; dampening member extending from front section of frame structure joined to midpoint on transverse bar of which ends joined to cradles; an assembly of rollers mounted on frontal sides of both cradles, whereby rollers as guide roll on cross rail; and rod extending from front section of frame structure to a point where mounted ball can be reached by user's both knees.

Abstract: An exercise system for simulating the motions involved in boarding sports such as surfing or snowboarding in a repetitive manner which allows for a cardiovascular, aerobic exercise that builds and tones the same muscles and reflexes used in boarding sports. The exercise system generally includes a frame including a first track and a second track. The first track is positioned parallel with the second track. A carriage assembly is slidably mounted on the first track and the second track such that the carriage assembly may freely slide back and forth along the tracks. The carriage assembly is adapted to tilt about a horizontal axis of rotation and swivel about a vertical axis of rotation. By sliding the carriage assembly along the tracks and utilizing the swiveling and tilting motions, the operator may simulate the motions and exercises encountered while enjoying boarding sports such as wakeboarding, snowboarding, surfing and skateboarding.

Abstract: A ski exercising apparatus includes a ski unit including two ski members each having a wavy slide rail extending in a front-to-rear direction, two pedal units mounted slidably and respectively on the slide rails of the ski members, at least one pull rope mounted movably to the ski members and having two opposite ends connected respectively to the pedal units, two handle units connected pivotally and respectively to the ski members, and at least one connection unit disposed between and interconnecting the ski members and adjustable to change the position and orientation of one of the ski members relative to that of the other ski member.

Abstract: An exercise apparatus including: a pair of platforms, each of the pair of platforms having: a base including a lower surface and a pair of opposed flanges extending upwardly from the lower surface; roller units received side-by-side in the base and being independently rotatable, each of the roller units extending between the pair of opposed flanges of the base and including at least two roller bodies spaced from one another by a groove, each of the at least two roller bodies including an outer surface, at least a portion of the outer surface being in continuous contact with the lower surface of the base; a retainer coupled to the base for maintaining the rollers units on the base; and a connector for coupling the pair of platforms to one another to provide a surface for sliding.

Abstract: A training apparatus configured for skating-type sports whereon a user can perform training, exercising, strengthening and conditioning while wearing footgear designed for use in skating-type sports. The training apparatus comprises a pair of interconnected opposed matching elongate platforms extending backward and away from each other preferably at an angle equal to or less than 90°. Each platform is provided with an abrasion-resistant exercise surface assembly configured to slidingly communicate with and to controllably engage and disengage a user's footgear. Each platform is provided with a controllably pivotable and lockable foot stop assembly. The training apparatus is provided with an electronic device configured to measure, monitor, record and report at least one of a user's vital signs and a physical performance criterion associated with skating-type motions and activities. The training apparatus is optionally provided with a vertically adjustable knee brace apparatus.

Abstract: A sports board simulator (10) comprising a main frame assembly (11) which is suspended from an elevated anchor point so as to be free for at least limited pivoting and swinging movement about the anchor point, the main frame assembly (11) including arms (17) which can be gripped by a user and/or the user can be secured to the frame assembly (11) by a harness (25). An elongated board (40) upon which the user may stand is suspended from the main frame assembly (11) via an intermediate frame (36) which permits the board (40) to move relative to the main frame assembly (11) about a pivot axis (C-C) extending transversely of the main frame assembly (11). The board (40) is also capable of pivoting about further axes D-D, E, and F.

Abstract: A leg press machine has a floor engaging main frame, a user support pivotally mounted relative to the main frame and having primary and secondary support portions which support spaced locations on a user's body throughout an exercise, and a leg press exercise arm rotatably mounted relative to the main frame. The exercise arm has a first pivot connection which pivotally links the exercise arm to the user support and a second pivot connection which is associated with the main frame to link movement of the exercise arm to movement of the user support. A load resists movement of at least one of the moving parts.

Abstract: An exercise device reciprocates footpads along curved tracks having first pivotally supported ends and second ends that are alternately raised and lowered with respect to one another.

Abstract: An exercise apparatus including: a pair of platforms, each of the pair of platforms having: a base including a lower surface and a pair of opposed flanges extending upwardly from the lower surface; roller units received side-by-side in the base and being independently rotatable, each of the roller units extending between the pair of opposed flanges of the base and including at least two roller bodies spaced from one another by a groove, each of the at least two roller bodies including an outer surface, at least a portion of the outer surface being in continuous contact with the lower surface of the base; a retainer coupled to the base for maintaining the rollers units on the base; and a connector for coupling the pair of platforms to one another to provide a surface for sliding.

Abstract: A ski exercising apparatus has a set of at least two parallel, partially arcuate rails joined to an underlying frame structure at opposite ends, the rails providing a track rising from each end, a wheeled carriage riding on the track, such that the carriage, in side-to-side movement rises to a maximum height at the center of the track, and descends from the center to each side, at least one articulated footpad mounted to the wheeled carriage, and at least one power band providing constraint for the wheeled carriage as it rides on the track. A variety of improvements in such an exercising apparatus are taught and claimed.

Abstract: An exercise device configured to sense and respond to objects in proximity to the exercise device is provided. The device includes a sensor configured to sense objects in proximity to the exercise device other than the user who is operating the exercise device. A console is in communication with the sensor that instructs components of the treadmill to provide, for example, an audible and/or visual response to the user of the exercise device, or to slow or stop the exercise device from moving. Sensors that are capable of sensing whether objects are within different spatial zones of proximity are disclosed. Multiple pre-defined and/or user-defined responses to objects detected in multiple corresponding spatial zones of proximity are also disclosed herein.

Abstract: An exercise device reciprocates footpads along curved tracks having first pivotally supported ends and second ends that are alternately raised and lowered with respect to one another.

Abstract: A sports board simulator (10) comprising a main frame assembly (11) which is suspended from an elevated anchor point so as to be free for at least limited pivoting and swinging movement about the anchor point, the main frame assembly (11) including arms (17) which can be gripped by a user and/or the user can be secured to the frame assembly (11) by a harness (25). An elongated board (40) upon which the user may stand is suspended from the main frame assembly (11) via an intermediate frame (36) which permits the board (40) to move relative to the main frame assembly (11) about a pivot axis (C-C) extending transversely of the main frame assembly (11). The board (40) is also capable of pivoting about further axes D-D, E, and F.

Abstract: Footwear including a support member having an upper surface attachable to a foot, and two bulbous protuberances, a forward bulbous protuberance and rearward bulbous protuberance, each having a curved outer contour, protruding from a lower surface of the support member on opposite sides of a latitudinal midline thereof, and wherein at least one of the protuberances is offset from the centerline of the support member.

Abstract: An exercise apparatus including: a pair of platforms, each of the pair of platforms having: a base including a lower surface and a pair of opposed flanges extending upwardly from the lower surface; roller units received side-by-side in the base and being independently rotatable, each of the roller units extending between the pair of opposed flanges of the base and including at least two roller bodies spaced from one another by a groove, each of the at least two roller bodies including an outer surface, at least a portion of the outer surface being in continuous contact with the lower surface of the base; a retainer coupled to the base for maintaining the rollers units on the base; and a connector for coupling the pair of platforms to one another to provide a surface for sliding.

Abstract: An adductor exerciser has a stanchion, a stand, a crossbar and two legs. The stanchion has an upper end and a lower end. The stand is attached to the lower end. The crossbar is attached to the upper end of the stanchion. Each leg is pivotally connected to the crossbar and has a distal end and a pedal assembly. The pedal assembly is mounted rotatably to the distal end of the leg.

Abstract: Disclosed method and systems for learning and practicing slalom. An example method includes moving the slalomist's feet, skis or board mounted on a movable platform of a slalom simulator, together with the platform relative to a base of the slalom simulator periodically left-right, rotating the slalomist's feet, skis or board together with the platform periodically clockwise-counterclockwise in a plane of a simulated slalom route, wherein said movement and rotation are carried out with unchangeable direction of a longitudinal axis of the slalomist's feet, skis or board relative to the platform, synchronously and with an inclination of the slalomist's feet relative to the plane of the simulated slalom route, reversing said movement and rotation alternatively with the shifting of the initial phases of said motions, and moving the base of the slalom simulator forward along the axis of the simulated slalom route.

Abstract: Gymnastic machine (1) for simulating the skating movement provided with a frame (10) carrying a load unit (20), with an exercise station (30) for performing a training exercise, and with a first functional group (31) and a second functional group: the first group (31) being mechanically connected to the load unit (20) in order to exchange mechanical energy with this latter; the first group (31) comprising at least a footrest (33) carried in a rotatable manner and in open chain by the frame (10); the second functional group (60) comprising at least a third lever (61); transmission means (70) being positioned between the first and second functional groups (31)(60) in order to connect each third lever (61) to a respective footrest (33) for performing a training exercise for training the upper limbs in combination with a simulation of the skating movement.

Abstract: An exercise machine comprises a frame, left and right swing mechanisms, left and right driving members, left and right actuating mechanisms, and a handle assembly. The left and right swing mechanisms are pivotally connected to the frame in outward skew modes. The left and right driving levers are respectively jointed between the left and right swing mechanisms and the left and right actuating mechanisms. Furthermore, one of the actuating mechanisms is coupled to a handle assembly which is connected to the frame in an inclined mode.

Abstract: The present invention relates to a universal adapter for exercising sticks comprising a mounting means for stably and detachably securing at least an exercising stick in place, such that said adapter functions and forms as an extension of said stick when in use. The mounting means preferably comprises of an elongated member into which a stick-holding means is slidably, tensionally and adjustably mounted, such that said mounting means is capable of providing a varying resistive force against the pushing action of a user when in use, and an extension for increasing the stick's effective length, especially when used in combination and to complement a stationary exercising device such as, among others, a stepper, twister, treadmill, stationary bike, stair climber and combination thereof.

Abstract: Ski simulation device has at least two arching rails parallel each other on a sloped plane elevated at an angle of a variable degree, joined to frame structure which includes handgrip and cross rail, arching rails providing track; a carriage rides in side-to-side movement on track; whereas carriage on which platform is mounted around axis, whereas platform on which two cradles each is mounted around its axis, whereas cradles wherein two rocking footrests are nested; resistance members providing a constraint on carriage as it rides on track; dampening member extending from front section of frame structure joined to midpoint on transverse bar of which ends joined to cradles; an assembly of rollers mounted on frontal sides of both cradles, whereby rollers as guide roll on cross rail; and rod extending from front section of frame structure to a point where mounted ball can be reached by user's both knees.

Abstract: A hip-abduction stepper exercise apparatus primarily comprises a base and two pedal assemblies settled abreast on the base. Each of the pedal assemblies includes a pedal, a vertical movement module, an expanding movement module, and a recovery module. The pedal is settled on the vertical movement module while the expanding movement module is settled on the base so that the two pedals can depart from or come close to each other with respect to a level position. The vertical movement module is connected to the expanding movement module so that the two pedals can vertically move in a direction non-perpendicular to the ground. The recovery module is connected to the vertical movement module and the base and provides an external force for returning the vertical movement module and the expanding movement module to initial positions thereof.

Abstract: A training apparatus configured for skating-type sports whereon a user can perform training, exercising, strengthening and conditioning while wearing footgear designed for use in skating-type sports. The training apparatus comprises a pair of interconnected opposed matching elongate platforms extending backward and away from each other preferably at an angle equal to or less than 90°. Each platform is provided with an abrasion-resistant exercise surface assembly configured to slidingly communicate with and to controllably engage and disengage a user's footgear. Each platform is provided with a controllably pivotable and lockable foot stop assembly. The training apparatus is provided with an electronic device configured to measure, monitor, record and report at least one of a user's vital signs and a physical performance criterion associated with skating-type motions and activities. The training apparatus is optionally provided with a vertically adjustable knee brace apparatus.

Abstract: An exerciser has a base, a driving device and a supporting board. The driving device is mounted between the base and the supporting board and driving the center of the supporting board to move along a three dimensional 8-shaped track. Accordingly, an exerciser for realistic simulation of wave surfing and having a simplified structure is provided.

Abstract: The present invention may be used for human exercise. A track assembly may have two bottom cross members attached approximately perpendicular thereto and extending approximately horizontally from each side of the track assembly. Two vertical frame members may be attached to a first end of each of the bottom cross members. A handle may be attached at an upper end of each of the vertical frame members. A seat may be disposed in an upper portion of the two vertical frame members for seating to face a second end of the bottom cross member.

Abstract: An elliptical exerciser includes two side tubes on two sides of the base and two guiding rails are pivotably connected to the two side tubes respectively. Two connection rods are connected to two ends of the crank on the wheel and each connection rod has a roller which is movably engaged with one of the guiding rails. Two pedals are connected to the two connection rods. The angle between the two guiding rails can be adjusted so that the users may operate the elliptical exerciser in a skiing or twisting way.

Abstract: A lateral motion exercising apparatus provides a pair of vertically oriented axles engaged with a frame. A pair of support struts are rotationally engaged with the axles. A rigid link is pivotally joined at its terminal ends with the support struts in a manner for maintaining the support struts in parallel alignment as they rotate about the axles. A pair of platform struts is engaged pivotally at proximal ends of the support struts, the pivots enabling each of the platform struts to rotate vertically about its distal end. The proximal ends of the platform struts are constrained to move in opposing vertical motions in coordination with rotations of the support struts to produce a skating-like motion to a user standing on the platform struts.

Abstract: An improved apparatus to enable a user to simulate skating, hereafter referred to as a skating machine, wherein the improvement involves the incorporation of a tension means connected at one end to the location of the intersection of a pedal connector bar and a crank to prevent the skating machine from locking or freezing when the pedals are at their most sideways positions. The crank is connected at its opposite end to a resistance means and the pedal connector bar is connected at its opposite end to a portion of a pedal assembly. The tension means is connected at its opposite end to a location on the skating machine frame. The crank and pedal connector bar are aligned in an almost horizontal 180 degree position when the pedals are at their extreme left or right position and the tension means prevents the machine from locking in this position.

Abstract: A training apparatus contains a base, a sliding unit, a cranking unit, and a linking unit. The sliding unit contains two connecting strips with treadles at the back ends. A first flexible link and a second flexible link are arranged in parallel and connected to the two connecting strips. The cranking unit contains a wheel supported axially by an end of a crank arm which rotates synchronously with the wheel. The linking unit contains a third flexible link connected between the other end of the crank arm and the front end of one of the connecting strips. By the resilience provided by the third flexible link, the lateral and reciprocal motions of the sliding unit are prevented from getting stuck at the dead spots.

Abstract: An exercise device includes two foot carriage assemblies. The foot carriage assemblies are operable to support a user's feet on a frame and to travel along a generally lateral path of motion. The foot carriages are operable to engage first and second torque tubes, which in turn participate in resisting the lateral movement of the foot carriages. A lateral striding motion on the exercise device may include a simulation of a motion associated with skating and/or skiing.

Abstract: An exerciser has a base, a driving device, a supporting board and a control device. The driving device is mounted on the base and has a motor, two rotating axles, two shaking arms, two swinging shafts and two lateral arms. The motor is securely attached to the base. The rotating axles are rotatably mounted on the base and have an angle between the rotating axles to make the rotating axles to form a V-shaped arrangement on the base. The shaking arms are securely and respectively attached to the rotating axles. The swinging shafts are rotatably and respectively attached to the shaking arms. The lateral arms including a first lateral arm and a second lateral arm are respectively mounted on the swinging shafts. The supporting board is pivotally connected to the first lateral arm and is slidably connected to the second lateral arm.

Abstract: A stepping exerciser includes a spindle rotatably supported on a base, a pair of foot pedals rotatably supported on the base and arranged to be moved up and down stepped upon by a user, a coupling device for coupling the foot pedals to the spindle, to drive and to rotate the spindle, a pair of handles rotatably supported on the base, and arranged to be rotated by the user, and a connecting device for connecting the handles to the spindle, to selectively drive and rotate the spindle. The spindle may thus be continuously driven by the foot pedals and the handles alternatively. One or more spring members or a wheel may apply a resistive force against the spindle.

Abstract: An exercise machine which includes support structure which is pivotally movable about a main axis and first and second substantially co-planar footpads which are mounted to the support structure and which are movable relatively to the support structure.

Abstract: A ski training apparatus is provided that simulate movement similar to alpine skiing. A pivoting arm is mounted at the base of the front vertical post and carries a parallelogram linkage assembly, with two flanged wheels mounted on the linkage assembly. A guide swivel is mounted on the floor base underneath the flanged wheels. Two horizontal and parallel foot platforms are mounted on the linkage assembly for rocking motion about vertical parallel axes. The pivoting arm, foot platforms, flanged wheels and guiding swivel constitute a low friction mechanism that provides the compound motion similar to that of alpine skiing. A holding bar and a padded lower back rest will maintain the body properly positioned.

Abstract: A system is provided for persons who must remain seated for extended periods of time, such as persons working in offices and the like. The system includes one or two support surfaces for the feet of the user, which are moved by a motor driven base. The support surfaces perform an alternating longitudinal movement, a lifting and lowering movement or a movement combining the two movements. The support surfaces are moved by, in one example, support rods hingedly connected to a central point of the support surfaces and at the other end to eccentric pivots allocated to respective toothed wheels which are mounted so at to rotate about their respective axis. An intermediate motor-driven pinion conveys rotational movement in the opposite direction to the wheels and are placed between the wheels. The support surfaces may be a bar that is transverse relative to the motor-driven base, which is preferably used in mass transit vehicles such as motor coaches, airplanes, etc.

Abstract: An exercise apparatus used to simulate skating or roller blading movement in a user includes a pair of sleds or shuttles which include a pedal adapted to support the foot of a user standing thereon. The shuttles are movable along a respective guide assembly consisting of one or more rails which curve away from each other extending from proximate forwardmost ends, outwardly and rearwardly. The rail assemblies are provided in a substantially mirror arrangement and curve downwardly from their respective forwardmost ends to a lowermost distal portion. A guide member is provided to assist in positioning and maintaining the shuttles in sliding movement along each guide assembly, whereby the reciprocal sliding movement of the shuttles along an associated guide assembly acts to guide the feet of the user in skating or roller blade movement.

Abstract: The exercise device of the present invention has a base having two side members and front member that extends between the side members. At least one truss member extends from the base. A rotatable shaft is positioned on the truss member and a flywheel is mounted on the shaft. A rotatable drive shaft is mounted on the truss member and a first one-way clutch and a second one-way clutch are mounted on the drive shaft. A means is provided for operatively connecting the drive shaft to the rotatable shaft whereby rotation of the drive shaft causes the rotatable shaft to rotate. A pair of arms have a first end that is pivotally mounted on the base and a second end that extends from the base. A foot pad is positioned on the second end of each of the arms. The foot pads are disposed to move in an arcuate path towards and away from the side members of the base and the movement of the foot pads is in a direction that is substantially parallel to the front member of the base.

Abstract: A ski exercising apparatus has a set of at least two parallel, partially arcuate rails joined to an underlying frame structure at opposite ends, the rails providing a track rising from each end, a wheeled carriage riding on the track, such that the carriage, in side-to-side movement rises to a maximum height at the center of the track, and descends from the center to each side, at least one articulated footpad mounted to the wheeled carriage, and at least one power band providing constraint for the wheeled carriage as it rides on the track. A variety of improvements in such an exercising apparatus are taught and claimed.

Abstract: A standing single leg press exercise machine is comprised of a single movable step arranged to move up and down along an inclined path for exercising only one leg at a time. A resistance mechanism is connected to the movable step for providing resistance to movement. Two stationary steps are positioned on either side of the bottom position of the movable step. Hand rails are also positioned on either side of movable step. A shoulder pad is positioned above the movable step. A method for using the leg press is comprised of standing on one of the stationary steps with a stationary leg, and repeatedly operating the movable step up and down with an active leg. The active leg is exercised until it is tired, and the legs are switched to exercise the previously stationary leg while the previously active leg is rested.

Abstract: An apparatus for sliding exercise and recreation, such as a sports board including stick-on sheeting having an adhesive outer layer adhered to a substrate such as the underside of a sport board, and an opposed layer consisting of a low-friction, durable material adapted for engaging in sliding contact with the low-friction surface of area sheeting superposed on a support structure.

Abstract: A skiing exercise device includes a base frame having a front end portion with a pair of pivot poles disposed on opposite sides of a vertical plane. Each pivot pole has a pole axis inclining at an angle relative to the vertical plane. Each of two stepper members includes a foot support mounted on a supporting rod that extends from a pivot tube, which is sleeved rotatably on a respective pivot pole, in a longitudinal direction parallel to the vertical plane toward a rear end portion of the base frame, and a coupling flange extending from the pivot tube away from the vertical plane. A coupling unit includes a reel-mounting seat mounted on and movable in the longitudinal direction relative to the front end portion of the base frame, a reel mounted rotatably on the reel-mounting seat and disposed between the stepper members, and a cord wound on the reel and having opposite ends connected respectively to the coupling flanges of the stepper members.

Abstract: A device for mastering skate board tricks and maneuvers comprises a frame. The frame has a top and the frame is adapted to rest on a support surface. A spring board is suspended from the frame by stretchable straps. A foot deck is rotationally secured to the spring board and is secured to the spring board to limit or eliminate relative vertical motion between the spring board and the foot board.

Abstract: An exercise apparatus and method. Typically, the exercise apparatus includes a frame, and left and right pedals interconnected to the frame. The left and right pedals are adapted to be moved in any one of the following ways: in a substantially vertical direction, in a substantially horizontal direction, and simultaneously in a substantially vertical direction and a substantially horizontal direction. The apparatus may include a pedal support assembly interconnecting the pedals to the frame. The pedal support assembly typically includes a horizontal guide assembly configured to enable the pedals to move horizontally, and a vertical guide assembly configured to enable the pedals to move vertically. Additionally, the apparatus may include a resistance subsystem configured to selectively apply a resistance force against the motion of the pedals. The resistance subsystem may be used to limit motion of the pedals to a predefined pedal path within the range of motion.

Abstract: A multi-function physical training machine comprises a base frame and coupling units mounted on the base frame for the installation of at least one cord assembly which has two elastic cords. A T-shaped bar is pivoted on the base frame to be turned in a predetermined range. First resistance members are installed on the T-shaped bar to provide the T-shaped bar a loading when being turned. A seat assembly is mounted on the base frame and is pivotally connected with a training bar assembly such that the training bar assembly can be turned in a predetermined range. Second resistance members are installed on the training bar assembly to provide the training bar assembly a loading when being turned.

Abstract: A pair of a skater foot supports are joined with a skating motion director including, a simple crank interconnected with the foot supports by a pivotal linkage, such that as the crank rotates in a circle, one of the foot supports is pulled and the other pushed during a first one-half of the circle rotation, while, the reverse occurs during the second one-half of the circle rotation. The crank is rotationally engaged with a flywheel through a mechanical drive train, enabling the flywheel to rotate at a speed greater than that of the crank whereby the foot supports move with a skating motion for exercising a skater.

Abstract: A laterally sliding exercise device includes a base with rails that receive a foot platform. The rails are supported by a center support member that can be adjusted up and down resulting in a change in elevation of first ends of the rails. The change in elevation of the rails changes the resistance of the exercise device. Rollers slidingly connect the foot platform to the rails during operation.

Abstract: The exercise device of the present invention has a base having two side members and front member that extends between the side members. At least one truss member extends from the base. A rotatable shaft is positioned on the truss member and a flywheel is mounted on the shaft. A rotatable drive shaft is mounted on the truss member and a first one-way clutch and a second one-way clutch are mounted on the drive shaft. A means is provided for operatively connecting the drive shaft to the rotatable shaft whereby rotation of the drive shaft causes the rotatable shaft to rotate. A pair of arms have a first end that is pivotally mounted on the base and a second end that extends from the base. A foot pad is positioned on the second end of each of the arms. The foot pads are disposed to move in an arcuate path towards and away from the side members of the base and the movement of the foot pads is in a direction that is substantially parallel to the front member of the base.

Abstract: A device to assist a beginner in learning how to snowboard. The device connects to the top rear of the snowboard and consists of a base plate that connects to the snowboard, a rotational component that connects to the base plate and allows vertical and horizontal rotation, and a handle that connects to the rotational component on one end and is held by the instructor on the other end. The instructor skis behind the beginner and applies force to the handle which controls the speed, direction and edging of the snowboard, thereby assisting the beginner in learning how to snowboard.

Abstract: A ski-exercising and rehabilitation apparatus of the invention wherein the down-hill-run unit (22), has a system of rotatable rolls (25) mounted with bearings in external clamping beams (20) and (21) and in the central beam (26) so that their rotation axes lie in one arched plane, whereas said central beam (26) is supported on its ends with shock absorbers (27), whereas the ends of external clamping beams (20 and 21) are jointed at one end with the shorter articulated connecting rods (18 and 19) of variable lengths and at the other end with the longer articulated connecting rods (23 and 24) of variable lengths, the other ends of which are rotatably connected with respective discs of the gear wheels (13, 14, 15 and 16) mounted on the front drive shaft (11) and rear drive shaft (12), said external clamping beams (20 and 21) being also jointed to rocking levers (34 and 35) which are connected to actuators (36) mounted in the frame base (1) of the apparatus, whereas the light signs (54), imitating the positions o

Abstract: A parallel ski training or exercise apparatus is described. The ski training device provides the combination of parallel motion, edging, and weight shifting that characterizes downhill parallel skiing. Two foot platforms are mounted on a base, on independent rotation axes centered about the balls of the user's feet. The foot platforms are constrained to rotate together, i.e. their longitudinal axes remain parallel. The foot platforms can tilt from side to side to simulate the edging motion of downhill parallel skiing. Varying amounts of resistance to rotation and to tilting can be obtained by changing the springs or other devices that bias the foot platforms to straight-ahead and level alignment. The base of the parallel ski training device can be tilted to an angle by a support having a circular arc or hemispherical shape. With the front of the base raised, the user's ankles assume the leaning forward attitude that is used in parallel skiing.