Abstract: An elliptical trainer with a variable track is disclosed. The elliptical trainer has a base, a left and a right linkage, a transmission and a left and a right adjusting assembly. The linkages are connected to an upright posts extending upward from the base, respectively. Each of the linkages includes a pedal set configured to slide with respect to the linkage. The transmission deposited on the upright post drives the pedal sets to perform reciprocal elliptical motions. The adjusting assemblies are pivotally connected to the upright post, respectively, and serve to change an elliptical track along which the pedals move. Thereby, the elliptical track varies by expanding or retracting along only a major axis thereof. When using the elliptical trainer, a user will not need to step higher as the elliptical track expands. This design is more ergonomic and adaptive to users with various body heights and habitus.

Abstract: An exercise machine for performing barbell type free weight lifting exercises has a power cage or Smith press type frame, an elongated bar held on the frame in a substantially horizontal resting position, and an adjustable exercise mass assembly that allows a user to select an exercise weight from among a plurality of choices of different exercise weights provided by the exercise mass assembly. The exercise mass assembly is separate from the bar and any auxiliary weight plates carried on the bar. A cable and pulley system operatively connects the bar to a movable portion of the exercise mass assembly that provides the selected exercise weight. A powered actuator sets up the bar for performing a weight lifting exercise by lifting the movable portion of the exercise mass assembly up above a second portion of the exercise mass assembly that remains stationary during the particular weight lifting exercise.

Abstract: A convertible treadmill belt apparatus in which base belt (10) is transformable both into an endless belt with prickly acupressure massaging surface by releasable attachment of at least one acupressure patch (20), and into a regular smooth surfaced treadmill belt, also by releasable attachment of at least one bald treadmill patch (50). Unique patches (20) and (50) can also be assembled to create different sized acupressure mats. These are used for massages in a variety of ways including on the floor, in a chair, and suspended on a wall.

Abstract: An athletic training device, comprising a resilient member adapted to be worn behind a knee of a leg with at least one strap coupled to the resilient member so that the resilient member is located behind the knee. Two straps may be used where the first strap is coupled to the resilient member and securable to the leg above the knee; and the second strap coupled proximate to the first strap and securable to the leg below the knee. The strap or straps of the athletic training device are constructed of resilient flexible elastomeric material. Alternatively or additionally, the straps may be adjustable and held fast about the leg by one or more of the following: hook and loop fastener material, clips, snaps, buttons, and buckles.

Abstract: A fitness device for mounting on a door is useful for performing resistance exercises. The fitness device includes an upper member including a door anchor for securing the upper member to the door and a pulley support bracket having a pivot pin. The fitness device also includes a lower member including a door anchor for securing the lower member to the door and a pulley support bracket having a pivot pin. An elastic cord extends generally between the upper and lower members and is associated with two pulley members. The pulley members are configured to be removably received on the pivot pins. The pulley members include bores having keyways and the pivot pins include nubs configured to be received in the keyways.

Abstract: A balance training device is a platform for standing upon that allows inserts with pads to be adjusted and inserted to provide varying degrees of instability. The upper surface of an insert, or pedestal, may include multiple protuberances positioned at or near the periphery of the upper surface and a comparatively lower region between the protuberances and at or near the center of the upper surface. The platform, or base unit, may be configured to support two or more inserts simultaneously, and the inserts may be of differing height or have different numbers of protuberances. A method of balance training includes removably connecting a pedestal to the base unit and standing upon an upper surface of the pedestal. Use of the balance training device may provide improved training safety for participants in group performance activities such as cheerleading.

Abstract: Preferred top-loading adjustable weight kettlebell systems described herein preferably include a kettlebell base and at least one top-loading nesting weight. The kettlebell base preferably include a main body and a handle, the main body having a substantially convex upper surface, the handle upwardly extended from the main body. The at least one top-loading nesting weight preferably has a handle opening defined therein. The at least one top-loading nesting weight may have a substantially convex upper surface and a substantially concave lower surface. The at least one top-loading nesting weight is preferably loadable onto the kettlebell base by insertion of the handle through the handle opening. Preferred top-loading adjustable weight kettlebell systems may include a two-part securing mechanism for securement between the kettlebell base and the at least one top-loading nesting weight.

Abstract: A push up device includes a support device including a base for positioning on the floor, side supports and a top. A control device at the top includes a push up counter, a timer, and/or an audio signaling device. The support device includes adjustable arms which adjust the relative height between the top and the base. Hand supports extend from opposite sides of the support device. In one embodiment, the hand supports are removably mounted from the support device.

Abstract: The competitor starting device in a sports competition is a starting block device. It includes one rear base for holding the device on a competition surface, a force detection sensor connected to a processing circuit, and two starting blocks for competitor's feet. Each block is adjustably mounted on a longitudinal bar, which is connected to the base and activates the sensor to determine a response time at the competition start. The longitudinal bar is connected to an H-shaped structure having two strips, spaced apart. The strip ends are rigidly connected to an immobile portion of the rear base, while a central bar connecting the strips is secured to the rear end of the longitudinal bar. When a force is applied to the block(s), the central bar is pushed in one direction via the bending of the strips to activate the sensor to determine a response time at the competition start.

Abstract: Dumbbells with resistance bands suitable for performing a variety of exercises are described. The dumbbells with resistance bands include a pair of resistance bands that are affixed to opposing ends of dumbbell weights. Each dumbbell weight includes a means to adjust the length of a band as well as a locking mechanism. The length of each band may be adjusted and locked to provide varying levels of resistance.

Abstract: The present invention provides a compact, unitary exercise machine which may be rapidly reconfigured such that the user can perform a variety of exercise routines employing essentially the same rotary exercise movement, whether using the legs or the arms, while simultaneously exercising all the muscles of the subject extremity, including antagonistic muscles.

Abstract: A hurdle includes two base parts, each base part having a hollow space; a counterweight; a gear transmission arranged in each base part to displace the counterweight; tubular elements that include first second tubes displaceable telescopically relative to one another, each of the first tubes being fixed to one of the base parts; locking elements that lock the first and second tubes relative to one another; a bar connecting upper ends of the second tubes; a force-transmitting unit that extends from the hollow space in each base part and is connected to an associated second tube; and guides arranged in each base part, where the gear transmission engages both with the force-transmitting unit and with a driver for the counterweight, where the force-transmitting unit is received in the guides, and where the gear transmission is adapted to cooperate with openings provided in the force transmitting unit.

Abstract: Exercise apparatus and method including a slidable handle assembly. In one embodiment, a support arm structure, pivotally mounted on an upright frame, enables alternatively fixed positioning of a rod at various vertical distances above a ground plane, in a generally horizontal orientation. A pair of left and right handle bracket assemblies are sildably mounted on the rod, and can be engaged by a user for moving the slidable handle bracket assembly across the rod while overcoming a resistance established by an adjustable resistance mechanism (e.g., weight stack). In one embodiment, the apparatus and method are used for developing muscles used during trunk rotation of a user in a standing position.

Abstract: A handle for an elastic resistance cord training system includes a grip on a handle frame adjacent to a first end of the handle frame. A base is provided on the handle frame adjacent to a second end of the handle frame, with the base having one or more one cord channels. A gate is movable or slidable on the handle frame from an open position where the gate is substantially spaced apart from the cord channel, to a closed position wherein the gate overlies the cord channel. With the gate in the open position, the cords can be quickly and easily swapped out.

Abstract: Embodiments of a spring collar are provided for removably securing a disc weight to the sleeve of a barbell, as are embodiments of a magnetic spring collar attachment and associated methods. In one embodiment, the spring collar includes a resilient wire form having a permanent magnet mounted thereto. The spring collar includes a coiled body having a central aperture, and first and second radial arms extending from the coiled body. The first and second radial arms can be moved toward one another to increase the diameter of the central aperture and permit a user to slide the coiled body over the sleeve. The permanent magnet enables a user to removably secure the spring collar to a ferromagnetic surface when the spring collar is not in use.

Abstract: An anti-drift mechanism for a treadmill having a chassis, a support frame, and endless belt is mounted between a bottom side of the support frame and a lower half part of the endless belt includes a guide member and a pressing axial member sleeved onto the guide member. The guide member is mounted to the chassis of the treadmill and movable longitudinally with respect to the endless belt in such a way that the pressing axial member can be driven by the guide member to oppress the endless belt so as to increase the pressure applied to the endless belt for the purpose of adjusting the drifting belt back to its normal operational position.

Abstract: An apparatus comprises a first unit having a frame comprising a top and bottom arm and a first pivot point. A track comprises two rods disposed between the arms. A pad unit is configured to be slidably joined to the first track. The pad unit comprises a base portion having two grooves for joining to the rods, and a top portion to contact for moving the pad unit. A second unit has a frame comprising a top and bottom arm and a second pivot point. The second pivot point is configured for pivotal joining to the first pivot point. A second track comprises two rods disposed between the arms. A pad unit is configured to be slidably joined to the second track. The pad unit comprises a base portion having two grooves for joining to the rods, and a top portion to contact for moving the pad unit.

Abstract: An apparatus for exercise, body building and rehabilitation includes a main body to be grasped by a user or bound around a proper part of a user's body. A fixing member is secured with the main body for fixing one end of an elastic rope, loop-shaped and provided with a first and a second end portion in proper proportion. The first end portion is formed with an open hole extending downward and contracting gradually to form a longer open hole at the second end portion. The elastic rope has one end head first put in the larger open hole of the first end portion and then the elastic rope is moved downward to force its end head to be stuck in the narrower open hole of the second end portion of the fixing member not to slip off, facilitating a user to carry out exercise, body building or rehabilitation.

Abstract: A gymnastic tool (1) is formed by at least two impermeable external walls (2, 3) which are each concave shaped and provided with respective edges (4,5). The at least two impermeable walls (2, 3) are mutually fixed together by a connector (6), the gymnastic tool having at least one inner cavity.

Abstract: A portable exercise device for the posterior muscle chain. The portable exercise device can include a first anchor and a second anchor, the anchors being oriented substantially vertically, and at least one central member coupled to and extending between the first anchor and the second anchor. The anchors can include a housing, a handle portion rotatably disposed at a first end of the housing, and an anchoring portion operatively coupled to the handle portion and disposed at a second end of the housing.