Abstract: An exercise machine is for performing a striding exercise motion. The exercise machine has frame; first and second pedal members; first and second foot pads on the first and second pedal members, respectively, each of the first and second foot pads being configured to move in an elliptical path during the striding exercise motion; first and second rocker arms pivotally coupled to the frame; and first and second adjustment devices configured to actively adjust and set a position of the first and second pedal members relative to the first and second rocker arms, respectively, which thereby changes a shape of the elliptical path.

Abstract: Systems and methods for providing stationary omnidirectional locomotion for virtual reality or other applications. An omnidirectional mobility system (“OMS”) is provided that allows a user thereof to walk or run in all directions as the OMS constrains the user's movement relative to an environment to within a small area. The OMS includes two independent mobile OMS devices that each support one of the user's feet. Each OMS device tracks one of the user's feet during movement and moves responsive to the tracking to remain under the user's feet, thereby providing stationary locomotion. Each of the two OMS devices may include a plurality of tracking sensors, and a plurality of wheels to provide omnidirectional movement. Non-limiting examples of drives/wheels that may be used include Mecanum based systems, omni based systems, swerve drives, etc.

Abstract: A method for performing lower limb rehabilitation training comprises the steps of: (a) placing a training object's feet on a pedal in a limb rehabilitation training system, wherein the pedal comprises a pressure sensor and a location information sensor; (b) standing stably on the pedal to enable the pressure sensor on the pedal to record the body weight of the training object; and (c) sitting down on the saddle, thereby enabling: the pressure sensor on the pedal to monitor pressure variation between the training object and the pedal throughout the training of the training object, wherein the rehabilitation evaluating unit evaluates the physical status and rehabilitation status of the training object according to the physiological information and exercise information of the same collected by the sensing unit, and adjusts the exercise frequency and the exercise duration of the training object according to the physical status.

Abstract: An alternate exercise adapter for exercise machines having an intended function is designed to be attached to an exercise machine in order to provide the option of performing alternative exercises beyond the intended function(s) of the exercise machine, thereby transforming the exercise machine (such as a rowing machine) into a multi-use, multi-purpose training device. The adapter may include a pulley mounted on a pivoting arm, affixed to mounting blocks for attaching the adapter to an exercise machine. By placing the exercise machine's drive chain or belt in the open-block pulley, the drive path may be altered, e.g. allowing the transfer of force in the vertical plane. This may allow a user to perform additional exercise movements (bicep curls, reverse bicep curls, shoulder front raises, high pulls, overhead presses, front squats, et. cetera), providing for alternate use of the exercise machine's resistance mechanisms.

Abstract: A manual stair step exerciser that simulates the exercise derived from climbing stairs including a support frame with a chain sprocket assembly having multiple equal spaced deployable steps thereon. A drive shaft pulley and belt assembly interconnects to an adjustable magnetic resistant flywheel for sustained user step input of kinetic energy for sustaining self-propelled tread induced motion during exercise.

Abstract: A reciprocating transmission structure of an exercise machine, mounted to a frame of the exercise machine, includes a first reciprocating member, a second reciprocating member, a main rotating wheel, a first link, a second link, and a resistance wheel. The first reciprocating member reciprocally moves with a first reciprocating pivot portion as its axis. The second reciprocating member reciprocally moves with a second reciprocating pivot portion as its axis. The first link and the second link drive the main rotating wheel to rotate with a rotating shaft as its axis. The main rotating wheel drives the resistance wheel to rotate. After the first reciprocating member and the second reciprocating member move reciprocally, the resistance wheel can be driven to rotate by the cooperation of various components. The exercise machine is suitable for performing exercises related to reciprocating movement, and the operation is easier.

Abstract: An exercise device with controllable training modes includes a base, a first exercise mechanism, a second exercise mechanism, and an operating mechanism. The first exercise mechanism has a first gear member. The second exercise mechanism has a second gear member. The operating mechanism has a third gear member. When the third gear member is at a first position, the third gear member meshes with the first gear member and the second gear member to form a linked state, so that the first exercise mechanism and the second exercise mechanism are operatively linked and coupled and swing in opposite directions. When the third gear member is at a second position, the third gear member is disengaged from either the first gear member or the second gear member or both to form a free state, so that the first exercise mechanism and the second exercise mechanism individually swing.

Abstract: A modular exercise apparatus comprising a frame, a common drivetrain supported by the frame and including a common axle, a plurality of input receivers coupled to the common axle, and a resistance member operably coupled to the common axle and operable to provide resistance against rotation of the common axle, a first exercise attachment including a first drive member operably coupled to a first input receiver of the plurality of input receivers of the common drivetrain, and a second exercise attachment including a second drive member operably coupled to a second input receiver of the plurality of input receivers of the common drivetrain.

Abstract: An exercise apparatus orienting foot pedals and handlebars having first and second rotating armatures for generating subtended paths of rotation, with motors to revolve the first and second rotating armatures in opposite directions and allowing the subtended paths to migrate from a first two-dimensional plane into a second two dimensional plane and back into the first two-dimensional plane.

Abstract: A realistic sloping simulation device for a fitness equipment is disclosed, generally including a fixed base, a host tube, a support frame, and a driving unit. The host tube has a first end coupled to the fixed base. The support frame has a lower end slidably coupled to the fixed base and an upper end pivoted to the host tube between the first end and the second end. The driving unit is disposed between the host tube and the support frame or between the host tube and the fixed base. The fixed base, the host tube, and the support frame jointly form a linkage mechanism. By means of the driving unit driving the lower end of the support frame to move relative to the fixed base or the host tube, the second end of the host tube is caused to swing or rotate so as to simulate different slopes.

Abstract: A climbing exercise apparatus having ipsilateral and contralateral modes of operation may include a frame supporting movable generally vertically oriented members. The vertically oriented members may include arm and foot support members rotatably connected to carriage members movably supported on the frame. The climbing exercise apparatus may include three-dimensional movement capabilities for a user's arms and feet to move through three dimensional paths of motion during an exercise activity.

Abstract: A multipurpose fitness block suitable for a variety of upper body and lower body exercises is presented. The multipurpose fitness block contains a block body, a plurality of weight inserts, a carrying handle, and a plurality of attachment elements. The block body contains a plurality of handling channels and a plurality of weight holders. The plurality of weight holders is distributed about the block body. The plurality of handling channels is distributed about the block body. The plurality of weight inserts is connected along the plurality of weight holders. The carrying handle is connected adjacent to the block body. The plurality of attachment elements is distributed about the block body.

Abstract: An exercise device of the type including a frame with a first crank assembly rotatably coupled to the frame about a first axis and a second crank assembly rotatably coupled to the frame about a second axis. A control system may be used in communication with the first crank assembly and the second crank assembly, which may provide a synchronous movement of the first crank assembly relative to the second crank assembly. A pedal arm may be provided with a first end pivotally coupled to the first crank assembly and a pedal positioned on a second end. A crank link may be used with one end coupled to the second crank assembly and a second end coupled to the pedal arm. The crank link may be movable on the pedal arm which may provide varying paths of motion of the pedals.

Abstract: An elliptical exercise machine may include a base, one or more upright stanchions coupled to the base and extending upward from the base and supporting first and second cranks. The first crank may support a first crank arm. The first crank arm may support a first pedal leg hanging downward from the first crank arm. The first pedal leg may support a right pedal. The right pedal may be configured to swing forward and rearward and to raise upward and lower downward. The second crank may support a second crank arm. The second crank arm may support a second pedal leg hanging downward from the second crank arm. The second pedal leg may support a left pedal. The left pedal may be configured to swing forward and rearward and to raise upward and lower downward.

Abstract: An exercise machine is provided. The exercise machine may include a frame, an adjustment assembly coupled to the frame and selectively movable relative thereto, a foot linkage arranged to reciprocally move in a closed loop path, and a handle linkage arranged to reciprocally move in a defined path. The adjustment assembly may include a pivot axis. The foot linkage may be pivotably coupled to the adjustment assembly at the pivot axis such that selective movement of the pivot axis relative to the frame alters the closed loop path of the foot linkage in use. Movement of one of the foot linkage and the handle linkage may cause corresponding movement of the other of the foot linkage and the handle linkage Actuation of the adjustment assembly may selectively move the pivot axis in more than one direction.

Abstract: An exercise workstation includes a treadmill, a pedal exercise device disposed on or next to the treadmill, and a chair pivotally secured to the exercise workstation. The chair can be repositioned relative to the treadmill, such as above or to the side of the treadmill. A pivot arm is pivotally connected to a pivot joint to permit multiple positional adjustments of the chair. The pivot joint may be connected to the treadmill in fixed or movable position. The exercise workstation may include or be positioned adjacent to one or more work surfaces, such as a height adjustable desk or table.

Abstract: An adjustable bench comprises a seat, a skirt extending from the seat, and a plurality of height adjustable leg assemblies coupled to the skirt. The seat is shaped to be selectively mated with the skirt to provide the bench with either a flat top surface or a sloped top surface.

Abstract: A DAP unweighting system comprising an unweighting assembly and an exercise machine wherein the unweighting system is adaptable to the exercise machine and uses existing framing elements of the exercise machine to achieve an effective and user friendly DAP unweighting system assembly.

Abstract: An elliptical trainer includes a machine table, a transmission unit, two pedal units and two suspension arms. Each pedal unit has a pedal rod and a guide. The pedal rod has a front end thereof pivoted to one respective crank arm, and an opposing rear end thereof pivoted to one respective pedal seat. The pedal seat has the top surface thereof bearing one respective pedal. Each suspension arm has two opposite ends of a bottom side thereof respectively pivoted to the machine table and the rear end of one respective pedal rod. Each suspension arm is skewed in the direction of the pedal, so that each suspension arm can guide the pedal forward along a straight line direction and backward along a diagonal direction.

Abstract: An exercise machine is for performing a striding exercise motion. The exercise machine has frame; first and second pedal members; first and second foot pads on the first and second pedal members, respectively, each of the first and second foot pads being configured to move in an elliptical path during the striding exercise motion; first and second rocker arms pivotally coupled to the frame; and first and second adjustment devices configured to actively adjust and set a position of the first and second pedal members relative to the first and second rocker arms, respectively, which thereby changes a shape of the elliptical path.

Abstract: Climber exercise machine comprises a frame connected to a base through a base connection, the frame pivotable about the base connection. A right handle and a left handle are connected to respective right and left sides of the frame, the right handle moving within a first range of motion, the left handle moving within a second range of motion. A right pedal and a left pedal are connected to the respective right and left sides of the frame, the right pedal moving within a third range of motion, the left pedal moving within a forth range of motion. The right handle, the left handle, the right pedal, and the left pedal movable generally in the same plane. An angle between the frame and a plane parallel to an underside of the base is adjustable while the climber exercise machine is mounted by a user.

Abstract: An exercise step, usable for any of a variety of step exercises, can include a solid top surface that may be polygonal in shape. At least a portion of an underside of the exercise step can be formed in a honeycomb configuration, thereby reducing weight of the step as well as the material required to make the step. Handles may be formed by indentations in sides of the step for ease of lifting and positioning. The handles may be formed in opposites of the polygonal shape. In some embodiments, the polygonal shape may be symmetrical or may include longer and shorter sides in an alternating arrangement. At least a portion of the bottom of the step can be formed from an anti-slip material.

Abstract: A barre exercise device providing balance support for a user during exercise may include a horizontal barre exercise bar and a pair of brackets. The horizontal barre exercise bar is elevated above a floor surface by supporting structure in contact with the floor surface. The pair of brackets is attached to the supporting structure. Each bracket of the pair of brackets is adapted to support one or more hand weights therein. The device is lightweight yet structurally configured so as to support a user's entire weight thereon.

Abstract: An exercise apparatus having a pulley, a pair of stabilizing assemblies each configured to couple a front portion of a respective pedal element to each side of the pulley, a looped belt configured to couple the pulley to a resistance assembly, a tension stabilizer configured to maintain a tension of the looped belt on the pulley, and the resistance assembly configured to assert an adjustable resistance to the pedal elements through the looped belt. The exercise apparatus also comprises a transport mechanism with a handle for transporting the exercise apparatus.

Abstract: An exercise apparatus includes a support frame unit, a crank wheel unit disposed on the support frame unit, a resistance unit for providing resistance to the crank wheel unit, and two link units respectively disposed on left and right sides of the support frame unit. Each link unit includes a first pivot arm pivotally connected to the support frame unit, a pedal rod pivotally connected to the first pivot arm, a second pivot arm pivotally connected between the support frame unit and the pedal rod, a drive rod pivotally connected between the first pivot arm and the crank wheel unit, and a foot plate disposed on the pedal rod.

Abstract: A control system for controlling one or more of a plurality of exercise apparatuses across a network comprises a processor; a communication subsystem configured to communication with the plurality of exercise apparatuses across the network; and memory for storing information about one or more users. The information comprises, for each user, identity information, including a user identifier, and a resistance level indicator. Upon receipt of a user identifier from an exercise apparatus in the network, the processor is configured to identify the resistance level indicator stored in the memory corresponding to the user identifier, and cause the communication subsystem to transmit to the exercise apparatus the resistance level indicator for that user.

Abstract: Described herein are embodiments of stationary exercise machines having reciprocating foot and/or hand members, such as foot pedals that move in a closed loop path. Some embodiments can include reciprocating foot pedals that cause a user's feet to move along a closed loop path that is substantially inclined, such that the foot motion simulates a climbing motion more than a flat walking or running motion. Some embodiments can further include reciprocating handles that are configured to move in coordination with the foot via a linkage to a crank wheel also coupled to the foot pedals. Variable resistance can be provided via a rotating air-resistance based mechanism, via a magnetism based mechanism, and/or via other mechanisms, one or more of which can be rapidly adjustable while the user is using the machine.

Abstract: A system for monitoring the state of health of a patient suffering from respiratory disease including a portable medical device, the device including: a) a flow measurement device performing a spirometry measurement, and b) a reflecting photometric sensor performing an oxygen measurement or a measurement of blood oxygen saturation and heart rate. The system includes storage and comparison units in which a personalised plan of action for the patient is stored against which the spirometry and/or oxygen measurement data found are compared, displaying the result of such comparison on the display of a device connected to the internet so as to define the patient's state of health and identify exacerbation of the disease on the basis of data obtained from both such spirometry and oxygen measurements. A method for monitoring the health of a patient suffering from respiratory disease implemented through the system indicated above is also claimed.

Abstract: A plyometric exercise ladder. A frame has two, spaced-apart, upright posts. A fixed arm is mounted to each upright post, each fixed arm being adjustable along the length of the frame. A removable pull-up bar is supported by the fixed arms. Two spring-loaded arms disposed above the fixed arms are pivotally mounted to the upright posts of the frame. An electromagnet is connected to each spring-loaded arm for initiating movement. A freestanding bracket having at least one scissor arm is connected to the frame and to a wall or other solid structure to support the ladder. In place of the spring-loaded arms and electromagnet, a set of pegs can be removably placed along the length of the upright posts for retaining the pull-up bar as an athlete progresses upwardly. The ladder frame itself can be replaced with a skeletal frame when the ladder is used in conjunction with a conventional squat rack.

Abstract: A linkage mechanism with an elliptical motion trajectory includes a main body having two guiding tracks with a changeable lifting angle, a flywheel assembly and two handles installed on a front side of the main body, a first linkage rod pivotally attached between guiding rods of two driving linkage assemblies and two cranks of the flywheel assembly. The two pedals respectively include a front end pivotally attached onto each one of the cranks. Each one of the pedals moves together each one of the guiding rods and along each one of the guiding tracks and drives the flywheel assembly and each one of the handles to move forward and backward.

Abstract: Automatic salmon ladder training devices are provided. An automatic salmon ladder training device may include a frame and a rotation assembly. The rotation assembly may include a plurality of rotation subassemblies. The plurality of rotation subassemblies may each include a chain rotatably engaged by the rotation subassembly, a rung fixedly connected to the chain, and a fixed rung fixedly connected to the frame. Each of the rotation subassemblies are configured to rotate in concert with one another. For example, a left rotation subassembly and a right rotation subassembly may be configured to rotate in concert with one another.

Abstract: A portable weight-based exercise system is disclosed that is capable of providing a user with a variety of weight-based exercise options. The exercise system includes a carrying case having a housing, containing dumbbells and a collection of weight disks for performing a variety of exercises, and a removable handle assembly for carrying or dragging the housing along the ground. First and second end bars and a center bar of the handle assembly are reconfigurable from a first configuration wherein they are disposed in a U-shaped arrangement to form the handle assembly to a second configuration wherein the first and second end bars are coaxial with the center bar to form a longer straight bar, which can then be combined with the dumbbells and collection of weight disks to form an assembled long weight bar. The housing may additionally include accessories such as a jump rope and an exercise band.

Abstract: An elliptical machine includes: a transmission mechanism disposed a the base, one end of the lateral swing track disposed on both sides is pivoted at the base, and each lateral swing track can swing laterally; a connecting rod and a stepping mechanism are disposed on both sides of the transmission mechanism, and the front end of the front connecting rod in each mechanism is pivotally connected to the base; a front end is connected to the rear connecting rod of the front connecting rod in a universal joint type, the rear connecting rod is disposed on the corresponding track; the rear connecting rod free end part is pivoted to the pedal. When the pedal is stepped on, the front connecting rod is reciprocally extended with the transmission mechanism, and the user can freely manipulate the swing angle of the lateral swing track through the lateral force applied to the pedal.

Abstract: An electric seatpost assembly comprises a first member, a second member, a positioning structure, a controller, and a switch unit. The second member is movably coupled to the first member so as to change a length of the electric seat post assembly. The positioning structure is configured to position the second member relative to the first member. The controller is to control the positioning structure. The switch unit is provided on one of the first member and the second member to transmit at least one electric signal to the controller.

Abstract: A linkage mechanism with handles linked to an elliptical motion trajectory includes a main body having two guiding tracks with a changeable lifting angle, a flywheel assembly and two handles installed on a front side of the main body, a first linkage rod pivotally attached between the two handles and two cranks of the flywheel assembly. The two pedals respectively include a front end, and a second linkage rod is pivotally attached between the front end and each one of the cranks. A third linkage rod is pivotally attached between each one of the pedals and each one of the handles. Each one of the pedals along each one of the guiding tracks, and drives each one of the handles and the flywheel assembly to move.

Abstract: A system for providing feedback to a user performing a physical activity includes a first support assembly having a first upright assembly configured to be positioned at a first end of a performance region in which a user performs the physical activity, and a second support assembly having a second upright assembly configured to be positioned at a second end of the performance region, the second end being opposite the first end. The system also includes a first indicator extending between the first upright assembly and the second upright assembly, the indicator establishing a boundary that extends from the first upright assembly to the second upright assembly and configured to provide an immediate feedback signal to the user based on the user intersecting the indicator.

Abstract: A portable, foldable barre exercise device providing balance support for a user during exercise may include a pair of legs and a pair of support arms. Each support arm may be pivotally attached to a corresponding leg and may be adapted to be extended upward with the device in an open state. A horizontal exercise bar may be arranged between upper ends of the support arms. The device may further include a pair of weight stacks of removable dumbbells, each attached to a corresponding support arm, and one or more quick release straps for facilitating folding of the device into a closed state for stowage and for strapping the support arms and legs together. The device is lightweight yet structurally configured so as to support a user's entire weight thereon.

Abstract: A multi-function exercise device includes a supporting frame, a pair of linkage members, a first wheel unit, and a second wheel unit. Each of two first coupler bars couples a front link of the respective linkage member to the first wheel unit to permit rotation of the first wheel unit in response to upward movement of the front link of one of the linkage members. Each of two second coupler bars couples a rear link of the respective linkage member to the second wheel unit to permit rotation of the second wheel unit in response to swinging movement of the rear link. Two load-resistance members are provided for retarding rotations of the first and second wheel units, respectively.

Abstract: An exercise mechanism for a training machine is disclosed wherein the training machine includes a machine base and at least one handle which is operable to swing. The exercise mechanism includes at least one support and a rotary disk, wherein the at least one support is pivotally connected to the machine base and has a first end and a second end which are respectively on two sides of a portion pivoted to the machine base; the at least one support moves to generate a relative up and down displacement between the first end and the second end when the handle swings; the first end is pivotally connected to the machine base via a linkage assembly; the rotary disk would be driven to rotate when the second end moves whereby the exercise mechanism is capable of operating the training machine.

Abstract: An athletic training system includes one or more panels having a rigid front surface covered by a translucent material behind which is an illumination or light source and one or more pressure sensors that can detect and measure the pressure caused by impact against the front surface. A control device communicates with and controls the panels according to a selected exercise regimen that is designed to develop particular skills for an athletic or sporting endeavor by commanding the panel or panels to illuminate or display information. While illuminated or displaying, each panel actively monitors its pressure sensor for an indication of an impact, and upon detecting an impact, reports the detection of the impact to the control device, and turns off its illumination. The process of turning panels on and off and detecting impact can be used to construct various regimens for training and developing skills.

Abstract: A machine for concurrently performing opposing pushing and pulling motions with the legs and arms at various angles to simulate multiple exercises including climbing, running and crawling motions, wherein the machine is adjustable in angle. The individual lower body user supports move in a back and forth pattern on rails and include foot platforms and shin support pads for support a user's lower body and pivoting upper body user support hand grips wherein the left upper body user support and left lower body user support move in opposite directions and the right upper body user support and right lower body user support move in opposite directions and all four user supports move in unison.

Abstract: The present invention is directed to an over-the-tub double-sided step stool for providing a user, preferably a toddler or small child, with a means of un-assisted ingress and egress into a bathtub. The device may comprise an outer side and an inner side oriented such that they engage an outer and inner side, respectively, of a standard tub wall. Said outer and inner sides of the device may each further comprise a first step and a second step to provide elevation to a user of the device. Such outer and inner sides of the device may be connected to each other, whether permanently or removably, by a top step that may engage a top side of a standard tub wall. Said outer and inner sides of the device may further comprise a plurality of attachment receivers to which a plurality of non-slip foot attachments or suction foot attachments may be engaged to provide traction to the device.

Abstract: A sensing device for a training machine is disclosed. The training machine includes a base frame and two linkage assemblies, which are provided on two lateral sides of the base frame, and are pivotally connected to the base frame. The sensing device includes a sensed member and a sensing unit. The sensed member is engaged with the inside of one of the linkage assemblies, and moves along a movement path along with the linkage assemblies. The sensing unit includes sensors and a processor. Each of the sensors outputs a signal when the sensed member is located in a sensing range thereof. When the sensed member moves along the movement path, it is sequentially sensed by the sensors, and each of the sensors outputs the signal respectively. The processor receives the signals to determine a moving distance of the sensed member accordingly. Whereby, an amount of training could be measured accurately.

Abstract: A stationary exercise machine may include reciprocating hand members, such as handles, and/or reciprocating foot members, such as foot pedals. The reciprocating hand members may be operative to apply a first moment to a crankshaft, and the reciprocating foot members may be operative to apply a second moment to the crankshaft. The second moment may be different than the first moment. The reciprocating foot members may cause a user's feet to move along a closed loop path that is substantially inclined, such that the user's foot motion simulates a climbing motion more than a flat walking or running motion. The reciprocating hand members may be configured to move in coordination with the foot members via a linkage operatively coupling the hand members with the foot members. A resistance mechanism may apply resistance to crankshaft rotation, and the resistance mechanism may be adjustable while the user is using the machine.

Abstract: A hand-foot composite motion exercise machine generally includes a supportive frame, a transmission unit, a crank means, and a pair of linkage units. The exercise machine allows a user to change the configuration of each linkage unit through a raising/lowering device and a displacing device, so as to adjust the motion path of a pedal provided at each linkage unit, and the force required for treading the pedal. In use, while a user steps on the pedals to exercise, each pedal can perform a substantially elliptical closed path, which is ergonomical so that the user can be protected from exercise injury.

Abstract: Described herein are embodiments of stationary exercise machines having reciprocating foot and/or hand members, such as foot pedals that move in a closed loop path. Some embodiments can include reciprocating foot pedals that cause a user's feet to move along a closed loop path that is substantially inclined, such that the foot motion simulates a climbing motion more than a flat walking or running motion. Some embodiments can further include reciprocating handles that are configured to move in coordination with the foot via a linkage to a crank wheel also coupled to the foot pedals. Variable resistance can be provided via a rotating air-resistance based mechanism, via a magnetism based mechanism, and/or via other mechanisms, one or more of which can be rapidly adjustable while the user is using the machine.

Abstract: An exercise apparatus enabling a user to move the hands forward/backward in the same direction longitudinally and in opposite direction of the feet while the user's hands and feet move in a divergent/convergent manner laterally along a symmetrical semi elliptical routes.

Abstract: An elliptical trainer includes a base frame, a front upright frame mounted at the front side of the base frame, a transmission device set mounted at the front upright frame, a guide rail device set including a guide rail seat pivotally connected with its rear side to the rear side of the base frame, an upper support unit affixed to the front side of the guide rail seat and a lower support unit pivotally connected to the front side of the guide rail seat and biasable up and down relative to the front side of the guide rail seat, a retractable device set pivotally connected between the upper support unit and the lower support unit, and a pedal device set connected to the transmission device set and slidably supported on the guide rail seat.

Abstract: In an exercise machine, foot platforms may travel in inclined circular paths to establish three dimensional operational characteristics. Platform support members may be rotationally synchronized by connected mechanical components such that they are maintained out of phase with each other by one half of a cycle or 180 degrees in counter rotational directions. Crank synchronization in an inclined plane during operation of the exercise machine may provide three-dimensional foot travel in vertical, lateral and longitudinal directions.

Abstract: In an exercise machine, foot platforms may travel in inclined circular paths to establish three dimensional operational characteristics. Platform support members may be rotationally synchronized by connected mechanical components such that they are maintained out of phase with each other by one half of a cycle or 180 degrees in counter rotational directions. Crank synchronization in an inclined plane during operation of the exercise machine may provide three-dimensional foot travel in vertical, lateral and longitudinal directions.