Abstract: An elliptical exercise machine comprises a frame, two transmission rods, two stepping rods, wherein the frame is provided with a driving wheel and two sides of the driving wheel are respectively provided with a crank. One ends of the two transmission rods are connected to two cranks. The two stepping rods are connected to two transmission rods. Another end of each stepping rod is pivoted with a towing rod. Each towing rod is pivoted to the frame. Relatively elliptical orbits are formed through the two stepping rods driven by the two swing arms and the two transmission rods. When the two stepping rods reach a left acme and a right acme of each elliptical orbit, the two towing rods further tow the stepping rods corresponding to each other to generate a quick return effect so that elliptical orbit motion can be smoother.

Abstract: An exerciser includes a base comprising a rotatable central seat and a fixed support upwardly extending out of the seat; first and second carriage assemblies each comprising two opposite rails each having one end formed as a joint pivotably secured to either side of the seat, a bar across the other ends of the rails, and a foot plate adapted to rotate horizontally with respect to the rails and move along the rails; and first and second damping assembly in the first and second carriage assemblies respectively and each comprising two rollers fixedly secured to the seat between the joints and an intermediate portion of the bar respectively, an elastic belt passing the rollers, and two attachments at both ends of the first elastic belt respectively, the attachments being releasably fastened at either carriage assembly.

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 gym apparatus combining a plurality of cardiovascular exercise machines such as a bike system with weight training machines allowing a user to have many different types of exercise equipment and maintain it in a small space. The apparatus features a housing, an extendable Pilates seat component, a foldable wrist exercise, a bike system, a retractable chin up bar; power barbells in the inner cavity of the housing; and a foldable power barbell bar operatively connected to the power barbells via a pulley system.

Abstract: A stationary exercise device with a frame including a base, a front portion, and a back portion, a rail joined to the front portion and back portion including a portion of the rail that is spaced apart from and above the base, first and second supporting members linked to the frame to rotate about a first axis, first and second swing member connected to the rail to pivot about a swing axis, first and second control links pivotally connected to the first and second control members, and first and second pedals respectively connected to the first and second control links.

Abstract: An exercise device is provided, having a frame, an arm link pivotally coupled to the frame, a leg link pivotally coupled to the frame and a countermovement mechanism coupling the arm link and the leg link to enable substantially opposite direction of movement of the arm link relative to the leg link. A first and second set of the arm and leg links may be provided and positioned each adjacent a seat adapted to support a user. The range of motion of the arm links and therefore the leg links are controlled by the user as well as the direction of movement of the first set relative to the second set. This enables the user to perform a simulated walking gait exercise by moving the first and second arm links in generally opposing directions or an abdominal exercise by moving the first and second arms links in substantially the same direction.

Abstract: A cycle apparatus for physical exercise, rehabilitation of injuries and increased balance, the apparatus designed as a stationary exercise cycle. The apparatus consist of a first lower stable frame configured to be supported on a floor and a second upper frame rotary connected on axle fixed cantilever on first frame. The upper frame has an adjustable tilt movement relative the lower frame crosswise the flywheel's revolving motion. Stabilizing of the upper frame is done by turning handlebars.

Abstract: An aquatic exercise device designed to elevate the head out of the water while keeping the lumbar spine slightly flexed and allowing vigorous kicking of the legs for weight loss and low impact aerobic conditioning. A swimmer swims on his back and holds onto handles, which keep the device stable and provide a secure frame while in the water. The preferred embodiment is formed from PVC pipe and polyethylene foam. The pipe components are glued together using standard PVC glue.

Abstract: An exercise device including a frame including a base frame and first and second posts extending substantially orthogonally from substantially outer ends of the base frame, a first platform rotatably connected to the base frame and selectably lockable in at least one position. The first platform includes a curved track mounted on the first platform such that a lowest point of the curved track is substantially near a center of the first platform and a pair of high points are located substantially near opposite outer edges of the first platform. A rolling mechanism is configured to ride on the curved track. A second platform rotatably mounted to the rolling mechanism is selectably lockable in at least one position. Such an exercise device provides multiple ranges of motion designed to provide an abdominal exercise that targets various different abdominal muscle regions, and may also provide an aerobic and/or cardiac workout.

Abstract: A combination exercise device including a combination elliptical trainer and abdominal swivelling exercise machine, a combination skating simulation exercise machine and abdominal swivelling exercise machine, an exercise bicycle combined with an abdominal swivelling exercise machine and a recumbent exercise bicycle combined with an abdominal swivelling exercise machine.

Abstract: One embodiment of a lateral roll simulating assembly is provided which is adapted to attach to existing rowing exercise machines. It permits the user to experience various levels of physiological disequilibrium when a lack of proper balance control induces a sideways tipping action during a rowing workout. This facilitates the desirable and advantageous development of correct proprioceptive balance response using appropriate core musculature while practicing the rowing motion on a suspended rowing exercise machine. The apparatus comprises two floor-mounted members secured to each end of a rowing exercise machine that support the rowing exercise machine in a suspended condition. This assembly simulates lateral instability around the metacenter of any of a variety of rowing shells on water by allowing the rowing exercise machine to roll freely around a variety of longitudinal axes. Other embodiments are described and shown.

Abstract: A knee joint flexure progression meter and system. The knee joint flexure meter has an elongated progression meter bar with a major axis, an upper surface, a lower surface having a longitudinal recess therein, and a plurality of spaced apart indicia disposed on the upper surface thereof. A crossbar is disposed perpendicularly to the progression meter bar major axis. The crossbar is both adjustable and removable with respect to the progression meter bar. The crossbar is dimensioned smaller than the recess in the progression meter bar, so that the crossbar can be contained within the recess. A mechanism is provided for containing the crossbar within the progression meter bar for transportation or temporary storage.

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 providing a fore and aft horizontal component of striding motion that is dynamically user-defined, while providing a vertical component of the motion that is maintained on a predetermined vertically reciprocating path in some embodiments. The exercise device guides the user's foot in a pseudo-elliptical stride path, while providing a dynamically variable stride length that allows the user to move with a natural stride length. The exercise device allows tall and short users to extend or curtail the stride length to match their natural stride lengths. The length of the reciprocating path is dynamically adjusted during the exercise operation without equipment adjustments by changes in the length of the stride input by the user at a pair of foot engagement pads disposed on laterally spaced apart foot support members.

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: This invention relates to an apparatus which supports a user who is building back and leg muscles. This invention includes at least a track, a truck designed to run along the track and a sling for suspending a user from the truck. The track is of a design adapted to be secured to a ceiling joist. The truck of a size which is capable of supporting the weight of a user and of withstanding any forces which a user may impose upon the truck.

Abstract: An armrest for an exercise device which is arranged to be attached to a frame structure of the exercise device. The armrest is provided with a separate moving handle which is arranged to move in at least one direction with respect to the armrest during exercise.

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 and method for isolating an ankle during aerobic exercise on a bicycle configured to be worn on the leg of a person having an ankle injury so that the person may operate the bicycle with the leg having the ankle injury without pressure on the ankle, wherein weight and force are distributed from the pedal to the calf and thigh without implicating the ankle.

Abstract: A boxer-fly exercise apparatus, hereinafter Boxer-fly, is provided. The Boxer-fly provides an additional exercise for performing strength training of a user's pectoral muscles. Specifically, the Boxer-fly presents a novel angle for conditioning a user's pectoral muscles derived from the motion performed by a boxer dropping his elbows to block his ribs. Furthermore, the apparatus can be used by any user looking to fully develop their chest muscles.