Abstract: An apparatus comprising a rigid member movably supported overhead of a user wherein the rigid member has guiding arrangement for guiding a handle of the rigid member through a path having a vertical component, and wherein said handle has a biasing arrangement for biasing the handle toward an upper end of the path.

Abstract: An exercise treadmill having an endless exercise surface for walking or running while exercising, a resistance mechanism for providing a resistance for simulating the pushing or pulling of a load, wherein the resistance can be adjusted and set to a specific resistance setting. A movable pushing and pulling means is or are operatively attached to the resistance mechanism to transfer the load to the user. The resistance mechanism applies a constant and static force to the pushing and pulling means only in the same direction the endless movable surface moves and opposite a pushing or pulling direction such that operating the treadmill simulates the pushing or pulling of a load by a combination of gripping and pushing or pulling and moving the pushing and pulling means forward or backwards while walking or running forward or backwards.

Abstract: A method and/or a device may limit a distance traveled by a treadle assembly in an exercise device. For example, the distance traveled by the treadle assembly may be limited by limiting a distance that a resistance element operably coupled to the treadle assembly may travel. An exercise apparatus may include a travel-limiting device or capability.

Abstract: A partially-inlaid treadmill system includes a running deck, a wide belt assembled on two parallel rollers to slide over the running deck, side handrails, a panel for controlling and monitoring the treadmill system, a partition that separates a first part of the treadmill system positioned for access to the user from a second part of the treadmill system that includes mechanisms and electro-electronics for driving the belt, incline devices, belt lubrication, ventilation and regulating devices, an emergency control lever, a drawer, a plurality of directional ventilation openings, and an aisle provided on the same side of the partition as the second part of the treadmill for accessing components of the second part of the treadmill system.

Abstract: An endless cord exercise machine in which a user applies a continuous pulling motion to a cord that is attached to a resistance mechanism is disclosed. The machine may be arranged to simulate the acts of rope climbing or of scaling a wall with the assistance of a rope, or may be arranged to provide other types of upper and lower body muscle development. The resistance mechanism is ideally comprised of a plurality of rotary viscous dampers of differing viscosities housed in a rotating drum. A spring-loaded adjustment key mechanism extending through the hub of the drum and dampers allows the user to selectively engage any combination of dampers to provide exercise resistance.

Abstract: This invention relates to a whole body vibrator platform which is attachable to a treadmill. The treadmill belt provides the power to move the platform, translating the horizontal, linear, belt movement into vertical oscillations through one or more eccentrically mounted rollers which support the platform. A person standing on the vibrator platform experiences a vertical vibration at frequencies established by the linear velocity of the treadmill belt.

Abstract: A cushioned treadmill is provided for cushioning impact between a runner's feet and the treadmill platform. The cushioned treadmill includes a base and a platform coupled to the base. The platform has a first side and a second side. A belt assembly is coupled to and extends between the first side and the second side of the platform. The belt assembly includes a movable belt forming a running surface designed for supporting a user on the platform. A cushioning material is contained in a flexible bladder positioned in the platform beneath the running surface.

Abstract: A treadmill apparatus having a non-motorized tread, a sensor for sensing a parameter indicative of the tread speed, and a controller operatively connected to an angle adjustment mechanism to increase and decrease the angle of the tread. During operation of the treadmill, the controller compares the speed of the tread to a target speed, and based on the comparison, adjust the angle of the tread so that the operator's weight will adjust the speed of the tread.

Abstract: An exercise treadmill having an endless exercise surface for walking or running while exercising, a resistance mechanism for providing a resistance for simulating the pushing of a load, wherein the resistance can be adjusted and set to a specific resistance setting. A movable pushing handle or handles is or are operatively attached to the resistance mechanism to transfer the load to the user. The resistance mechanism applies a constant and static force to the pushing handle(s) only in the same direction the endless movable surface moves and opposite a pushing direction such that operating the treadmill simulates the pushing of a load by a combination of gripping and pushing the pushing handle(s) forward while walking or running forward.

Abstract: A wheelchair-accessible treadmill with a safety system allowing wheelchair users to exercise without the risk off steering off-course, tipping over, or rolling backwards off the treadmill. The wheelchair is secured by straps or similar means to two or more linear bearings that move along the side of the treadmill on rods or in tracks. When securely fastened, these allow the wheelchair to move forward and backward on the treadmill belt. The treadmill belt may be wider than standard, the height may be lower than standard, and a ramp may be used for access. An optical sensor may be used to determine the forward and backward movement of the wheelchair user. Wheelchair specific programs may be available through the control panel.

Abstract: Gait analysis apparatus using a treadmill, comprising an endless belt, which is guided over at least two rollers and the upper surface of which serves as walking surface, a sensor system for determining a pressure/force distribution on a measurement plate located underneath the endless belt and having a plurality of pressure/force sensors arranged in a matrix on the side facing the treadmill belt, wherein the measurement plate comprising the plurality of pressure/force sensors arranged in a matrix is itself supported by at least one base force sensor and the analyzing unit comprises an additional signal input connected to a signal output of the base force sensor as well as an additional signal processing stage for processing the output signal of the or each base force sensor in terms of a calibration or correction signal processing of the output signals of the pressure/force sensors arranged in a matrix, respectively.

Abstract: An exercise device employing side-by-side pivotally supported moving surfaces. In one particular example, an exercise device employs a first belt deployed about a front roller and a rear roller and an adjacent second belt deployed about a front roller and a rear roller. The rear of the belts in the area of the rear rollers are pivotally secured and the front of the belts in the area of the front roller are adapted to reciprocate in an up and down motion during use. In some implementations, the moving surfaces include an interconnection structure such that a generally downward movement of one surface is coordinated with a generally upward movement of the other surface. In other implementations, the moving surfaces are operably associated with one or more resistance elements that effect the amount of force required to pivot or actuate the moving surfaces.

Abstract: An elastic platform is provided a treadmill. The elastic platform includes a frame and a piece of fabric. The frame is connected to the treadmill. The piece of fabric is supported on the frame. The piece of fabric supports a section of a belt wound around two rollers of the treadmill.

Abstract: A physical therapy apparatus for use in conjunction with a treadmill provides an assistive force to a forward movement of the legs. A force assistance device is adapted to attach to the feet or legs of a patient positioned on a motorized treadmill to assist in walking therapy by providing an assistive force to a forward movement of the patient's feet or legs. An adjustment device may vary an interface of attachment, for example, the height or direction, between the force assistance device and the patient's feet or legs. A force arresting device may arrest the assistive force provided by the force assistance device during the forward movement of the patient's feet or legs. The force assistance device provides a substantially constant assistance force during the forward movement of the patient's feet or legs. The physical therapy device may also include a force adjustment device connected with the force assistance device to vary the magnitude of the assistive force.

Abstract: A treadmill conversion resistance training apparatus includes mirror-image left and right attachments for attaching to treadmill vertical support columns, each attachment having a vertical mounting bracket removably attachable to a vertical support column; a translation member rotatingly connectable to the vertical mounting bracket at a translation axis; resistance straps removably connectable between the translation member and the mounting bracket; a handle connectable to the translation member and lockable at selected angles; wherein, the treadmill to continues to function as an treadmill while the apparatus is attached. A treadmill conversion apparatus includes a handle having an articulation joint lockable at selectable angles. A treadmill conversion apparatus includes a handle joint having adjustable resistance portion.

Abstract: A treadmill with lateral shift effect includes a main frame, two swinging levers, with a pin joint set at the top and a swinging end formed at the bottom. The pin joint is pivoted onto the stands of the main frame. A movable rack is transversely set overhead the pedestal of the main frame and both ends of the movable rack are separately connected with the swinging end of two swinging levers. A treading mechanism is set on the movable rack and has a base frame, an upper swinging set, a lower swinging set and two pedals. The bottom of the base frame is assembled fixedly onto the movable rack, the upper/lower swinging sets are pivoted centrally on top of the base frame, and the bottom of two pedals is provided with an assembly seat for assembly and connection of two ends of upper/lower swinging sets.

Abstract: The exercise apparatus of the present invention comprises a treadmill 11 having a generally vertical running surface 14, and a bench 12 for supporting a user's upper body and hips. The angle of the running surface is adjustable relative to the ground within a range of angles, including a vertical angle. The bench may be positioned so that the feet of a user supported thereon may contact the running surface of the treadmill to exercise. The bench comprises a seat 23 and a back support 22, wherein the relative angle and position of the seat and back support are independently adjustable.

Abstract: Provided is a treadmill-related technology. That is, the treadmill device and the operating method of the same is configured to detect a user who is taking exercise in real time, take pictures of the detected user's looks, and insert user image data as the results of data analysis, which are obtained from the taken pictures, into a virtual 3D object moving image which indicates the selected exercise course background, so as to project a 3D user image in which the user's behavior patterns are engaged with a virtual 3D object moving image. Therefore, since the treadmill device is used to allow a user to see his own looks taking exercise in real time, it is possible to prevent the user from feeling boring during exercise, and it is easy to continuously check the user's own physical status or conditions.

Abstract: A running surface for a common exercise treadmill has an endless belt made of a rubber like material leaving a smooth finish to its upper and lower surfaces. At least one line of spaced apart holes penetrate the belt along its entire length. The holes enable fastening elements to affix generally circular rods to the upper surface to engage fastening eyelets by means of the fastening elements which are installed into at least one strengthening endless belt positioned below and urging against the lower extremity of the endless belt. The generally circular rods have prefabricated objects such as simulated cobblestones of various sizes and configurations in immediate adjacency to the upper extremity of the endless belt.

Abstract: A sensor unit installed in a premises for detecting a user's walking behavior. Connected to the server through a communication network are a server, an information reporting unit, and an exercise machine. The server includes a diagnosis section for analyzing time series data of walking signal from the sensor unit to determine walking ability and generate walking ability data indicative thereof, and an information providing section which provides the walking ability date to the information reporting unit and the exercise machine. The information reporting unit includes reporting means for reporting the determined walking ability to the user. The exercise machine includes a control section which gives an exercise to the user depending upon the walking ability.

Abstract: The various embodiments of the present invention generally provide a control system and a process for an exercise apparatus configurable into a combined treadmill and stepper mode. The apparatus may also be configured into stepper only and treadmill only modes. The apparatus generally includes a master control unit, a first sensor, in communication with the master control unit, which generates a first signal indicative of an effective tread speed for the apparatus, and a resistive element that includes at least one resistance level. Using the first signal, the resistance level, and empirical information, the amount of energy expended by a user of the apparatus may be calculated and the operation of the apparatus controlled. Various sensors, actuators and information, such as that obtained from various data structures, may be utilized in performing calculations and controlling the features, functions and operation of the apparatus.

Abstract: A shock/impact absorbing structure of a treadmill wherein a second roller set is positioned correspondingly at the internal side of the first roller set and includes a front and a rear roller disposed at the front and rear ends of the supporting board. A shock/impact absorber is positioned around the second roller set. The top side of the shock/impact absorber is directed to the internal side of the running belt. When the operator steps on the running belt, the shock/impact absorber is forced to be moved in rotation by the running belt such that the shock/impact absorber has a certain region in constant contact with the supporting board, thereby providing a direct shock/impact absorbing interface for the running belt. In this way, the noise can be reduced and the injuries during the exercise sessions can be avoided.

Abstract: A conveyor belt for a treadmill has a contoured structure on its upper surface which causes a runner to experience bumps and depressions when running. The contoured features may be provided by plates attached to the conveyor belt, and/or by inserts placed onto the belt or within chambers defined in the belt. The contoured features may vary in hardness.

Abstract: A selectively inclining hiking exercise apparatus supports a user ambulating thereon. The selectively inclining hiking exercise apparatus includes a support base and a treadbase that selectively inclines with respect to the support base. The treadbase includes a motor for driving an endless belt upon which the user ambulates. The treadbase also includes a magnetic braking assembly for regulating the speed of the endless belt to prevent the endless belt from moving at a rate that is faster than the rate at which the treadbase motor is driving the endless belt. The magnetic braking assembly includes a magnet that selectively moves relative to the treadbase flywheel along a threaded lead screw to provide the braking force.

Abstract: Disclosed herein are a roller, a method for using the roller, and a treadmill incorporating the roller. The roller may be integrally structured and have a pipe wall thickness at intermediate portion less than a pipe wall thickness at an end portion, and towards the end portion, a pipe wall size at the intermediate portion transited into a pipe wall size at the end portion. The roller can serve as a transmission member and may be used in a treadmill.

Abstract: An apparatus for carrying out a motor activity for playing or sporting purposes, comprising a cylindrical structure (1) housing therein a footboard (2), which is characterized in that said footboard (2) is of cylindrical shape and is revolvingly mounted internally to said structure (1), the arrangement being such that a user in order to carry out the motor activity places him/herself on said footboard (2) and internally to said cylindrical structure (1).

Abstract: An exercise treadmill for simulating a dragging or pulling action, having an endless moveable surface looped around rollers or pulleys to form an upper run and a lower run, with an exercise surface for walking or running on while operating the treadmill; and a moment arm weight resistance means for simulating the dragging or pulling of a load.

Abstract: An exercise treadmill having an endless exercise surface for walking or running while exercising, a resistance mechanism for providing a resistance for simulating the pushing or pulling of a load, wherein the resistance can be adjusted and set to a specific resistance setting. A movable pushing and pulling means is or are operatively attached to the resistance mechanism to transfer the load to the user. The resistance mechanism applies a constant and static force to the pushing and pulling means only in the same direction the endless movable surface moves and opposite a pushing or pulling direction such that operating the treadmill simulates the pushing or pulling of a load by a combination of gripping and pushing or pulling the pushing and pulling means forward or backwards while walking or running forward or backwards.

Abstract: A foldable treadmill includes a base and two posts are pivotably connected to the base. A handle is pivotably connected between the two posts and includes at least one pivotal end which is connected the two posts. A positioning unit is located between the two posts and includes a transverse link and at least one passive link which has a first end pivotably and is connected to the transverse link. A lever is connected to the transverse link so as to pivot the transverse link. At least one insertion is connected to a second end of the at least one passive link, the pivotal end of the handle having a restriction port with which the insertion is disengageably inserted to restrict the handle from pivoted about the insertion.

Abstract: An exercise device includes a support frame and a continuous running surface supported by the support frame. The support frame defines a horizontal plane having a longitudinal axis. The continuous running surface includes a movable belt and a plurality of sections mounted thereon and extending along a longitudinal axis of the belt. Each section includes an upper surface defining at least one inclined portion that is laterally inclined relative to the horizontal plane of the support frame. Adjacent upper surfaces of the plurality of sections define at least one laterally inclined track of the running surface.

Abstract: An exercise treadmill (20) is described having a number of assembly improvements. In one embodiment, a pivot assembly (50) is provided to allow a treadmill deck (32) to deflect during use. The rear pivot assembly includes a pin (56) transversely mounted on the upper surface of a treadmill frame (22). A pivot block (54) is attached to the deck and includes a lower channel (58) that engages the pin. In another embodiment, an adjustable rear foot assembly (70) is provided having a foot (74) that is rotatable within a mounting block (72). The foot is easily accessed through an upper opening (96) in the treadmill. In yet another embodiment, an air dam (100) is provided between a motor compartment (102) and an adjacent endless belt (28). In still another embodiment, a highly elastic drivebelt (120) is used between a motor assembly (104) and a roller assembly (24) that drives the endless belt (28). Lastly, an embodiment is described in which the treadmill frame (22) is assembled using swaged fasteners (38).

Abstract: The invention relates to a device for controlling and/or regulating a training and/or rehabilitation unit, the device comprising at least one training and/or rehabilitation unit, a sensor unit having a sensor for determining oxygen concentration and for determining carbon dioxide concentration, a control unit for the sensors, a microcontroller in the control unit for controlling the heating power of heating elements of the sensors, depending on breath flow volume, for maintaining constant sensor temperatures, and a resistance and/or braking arrangement of the training and/or rehabilitation unit that can be controlled and/or regulated based on the breath gas composition determined by the sensor unit. Said device can be used to increase endurance, preferably by means of altitude training.

Abstract: Methods, apparatus, and systems for calibrating differential air pressure systems are described. The methods, apparatus, and systems may be adapted for physical training of an individual, e.g. as a training tool to improve performance or as a physical therapy tool for rehabilitation or strengthening. The differential air pressure systems comprise a chamber for receiving at least a portion of a user's body. In one embodiment, a method for calibrating a differential air pressure system for predicting effective body weight of a user versus system pressure is described. In certain variations, the methods, apparatus and systems may comprise adjusting pressure in the system until one or more force values are reached. The methods described herein may comprise determining a relationship between body weight force and pressure, allowing the user to set a pressure or a parameter correlated with pressure to achieve a desired effective body weight.

Abstract: A treadmill test protocol is provided having a linearly increasing work rate profile achieved by linearly increasing walking speed while simultaneously and non-linearly increasing the treadmill inclination. Specifically, according to the protocol it is possible to use a test subject's projected maximum end-test work rate to calculate a treadmill test protocol that starts with a low walking speed and low grade to produce a metabolic rate that is commensurable to that of unloaded cycling in cycle ergometer tests, thereafter having a linear increase in walking speed and simultaneous curvilinear increase in treadmill grade so that when the test subject is tested according to the calculated protocol, the test result yields a work rate and metabolic rate response with a linear slope. Further, the desired maximum treadmill speed can be adjusted so as there is no need for jogging or running for any given test subject.

Abstract: An assisted stair training machine. The machine includes a stationary platform having a planar upper surface positioned parallel to a reference plane and at a predetermined distance above the reference plane; a movable platform having a planar upper surface and being configured to move from a first position to a second position, and a lifting mechanism. The planar upper surface of the movable platform is substantially level with the reference plane in the first position, and the planar upper surface of the movable platform is substantially level with the planar upper surface of the stationary platform in the second position. The lifting mechanism is configured to move the movable platform from the first position to the second position and from the second position back to the first position at a predetermined speed.

Abstract: The current invention is an exercise apparatus and method adapted for use with a leg exercising machine, the exercise apparatus including a base, a support beam having a proximal end and a distal end, wherein the proximal end portion extends from the base. Further included in the exercise apparatus is an omni-directional movable joint element that is disposed adjacent to the distal end portion and a grasping arm, with the grasping arm being received within the omni-directional movable joint element, wherein the grasping arm is operational to have omni-directional movement relative to the support beam. Also included in the exercise apparatus is a dampening element that is disposed between the support beam and the grasping arm, the dampening element is operational to dampen the omnidirectional movement such that an individual using the leg exercising machine can grasp the arm for stability and support for a soft skeletal joint support.

Abstract: The present invention includes a treadmill system including a support platform, a liquid tank, and a lift support structure connected to a treadmill assembly by a lifting mechanism. In general, the liquid tank and the lift, support structure including the treadmill assembly move horizontally relative to and independent of one another along the support platform to position the lift support structure away from or about the liquid tank. In addition, the treadmill assembly moves vertically relative to and independent of the lift support structure using the lifting mechanism to lower or raise the treadmill assembly within an interior of the liquid tank or exterior of the liquid tank. More importantly, the combination of the horizontal movement and the vertical movement of the treadmill assembly permits a mammal to step onto the treadmill assembly before the treadmill assembly is raised and then lowered into an interior of the liquid tank.

Abstract: The present invention provides a power-saving tread mill. A power-saving tread mill includes: a pair of rollers 10, 20; and an endless belt 30 wound around the pair of rollers 10, 20, wherein at least one of the rollers 10, 20 has: an armature 24a having iron cores 24c and coils 24c wound around the iron cores 24c; and permanent magnets 23 rotatable with the one of the rollers 10, 20 integrally, and electromagnetic induction produced between the permanent magnets 23 and the armature 24a produces induced electric current flowing through the coils 24c when the one of the rollers 10, 20 is rotated.

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 exercise device includes a support frame and a continuous running surface supported by the support frame. The support frame defines a horizontal plane having a longitudinal axis. The continuous running surface includes a movable belt and a plurality of sections mounted thereon and extending along a longitudinal axis of the belt. Each section includes an upper surface defining at least one inclined portion that is laterally inclined relative to the horizontal plane of the support frame. Adjacent upper surfaces of the plurality of sections define at least one laterally inclined track of the running surface.

Abstract: A user support apparatus for an exercise machine. The user support apparatus is interconnected to a frame of the exercise machine and includes at least one handhold interconnected to a user support. The user support is generally a fixed length member such as a rope or cable that a user of the exercise machine may use for support while exercising. The length of the user support may be adjustable. The position of an anchor point for the user support relative to the user may be adjustable, thus allowing the user support to be anchored generally above the user for overhead support, generally in front of the user for pulling support, or at an intermediate position for a combination of overhead and pulling support.

Abstract: An exercise treadmill having an endless exercise surface for walking or running while exercising, a resistance mechanism for providing a resistance for simulating the pushing of a load, wherein the resistance can be adjusted and set to a specific resistance setting. A movable pushing handle or handles is or are operatively attached to the resistance mechanism to transfer the load to the user. The resistance mechanism applies a constant and static force to the pushing handle(s) only in the same direction the endless movable surface moves and opposite a pushing direction such that operating the treadmill simulates the pushing of a load by a combination of gripping and pushing the pushing handle(s) forward while walking or running forward.

Abstract: The current invention is an exercise apparatus and method adapted for use with a leg exercising machine, the exercise apparatus including a base, a support beam having a proximal end and a distal end, wherein the proximal end portion extends from the base. Further included in the exercise apparatus is an omni-directional movable joint element that is disposed adjacent to the distal end portion and a grasping arm, with the grasping arm being received within the omni-directional movable joint element, wherein the grasping arm is operational to have omni-directional movement relative to the support beam. Also included in the exercise apparatus is a dampening element that is disposed between the support beam and the grasping arm, the dampening element is operational to dampen the omnidirectional movement such that an individual using the leg exercising machine can grasp the arm for stability and support for a soft skeletal joint support.

Abstract: The present invention relates to a locking mechanism for use with exercise treadmills capable of being selectively configured in an operating configuration or a storage configuration. The locking mechanism may utilize various configurations of engagement devices and/or locking members to allow a user to selectively lock a treadmill frame in a fixed position relative to a base frame.

Abstract: Sensing applications for exercise machines are described. An example sensing application for profiling a workout session of an exercise machine comprises selecting at least one workout parameter or inputting at least one physical characteristic of a user and operating the exercise machine in compliance with the at least one workout parameter selected. The method further comprising reading output signal values from a sensor in which the output signals are generated by a user impact to the exercise machine during the exercise session and processing the output signals. The method further comprising determining workout matrices to profile the exercise session using the processed output signals and providing feedback information based on the workout matrices.

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 treadmill assembly comprising a substantially horizontal tread assembly including oppositely extending front and rear ends, a tread and a controller for controlling movement of the tread, a support structure extending proximate the rear end of the tread assembly to a distal top end substantially above the rear end of the tread assembly, a table top member mounted to the distal top end of the support structure, the top member including a substantially flat work surface and a front edge, the work surface having dimensions suitable to support a computer keyboard and a control assembly including at least one input button for providing command signals for controlling the controller, the control assembly supported by the table top member adjacent the front edge of the table top member.

Abstract: A folding structure of a treadmill includes a base with a treadmill belt, two support frames pivotally coupled to a front end of the base, a fixture installed a pivotally connection position of the two support frames and the base, the front sections of the two lateral bars being pivotally and respectively coupled onto the two support frames, a support bar being pivotally coupled to a rear section of each lateral bar, and the support bar being pivotally coupled to a rear end of the base, such that the lateral bars are supported by the support frame and the support bar to form a transversally extended holding section.

Abstract: A combined treadmill and seat assembly includes a portable treadmill, and a portable seat assembly detachably connected to the treadmill such that the seat assembly is selectively disposed between first and second positions while connected to the treadmill. The seat assembly includes first and second seats oriented at oppositely facing axial directions so that the first seat extends towards the treadmill while the second seat extends away from the treadmill. Advantageously, the treadmill platform is registered along a first plane when the seat assembly is positioned at the first position and, the treadmill platform is registered along a second plane when the seat assembly is positioned at the second position. Notably, the first and second planes are horizontally oriented and coplanar such that the treadmill platform remains equidistantly spaced from a ground surface when the seat assembly is situated at the first and second positions respectively.

Abstract: A treadmill device includes two treadmills disposed above a base and each having a tread supported around a platform and each has one end rotatably supported on the base with a shaft which may be driven by a motor. An arm has a middle portion pivotally supported on the base and has two ends located below and coupled to the treadmills, for elevating one of the treadmills when the other treadmill is lowered, such that the two treadmills may be operated as a stepping exerciser. A latch may be used to lock the treadmills together.