An exercise device and system are provided. The exercise device and system are especially suitable for use with sub-maximal to maximal concentric, isometric and eccentric exercises. The exercise device has a back-plate unit, an extended bar and a foot-brace unit. A first and second strap, each having a hand loop, may be grasped by the hands and may be attached to the extended bar and may be connected to the foot-brace unit. An optional scale may be secured to the foot-brace.

An exercise device and system are provided. The exercise device and system are especially suitable for use with sub-maximal to maximal concentric, isometric and eccentric exercises. The exercise device has a back-plate unit, an extended bar and a foot-brace unit. A first and second strap, each having a hand loop, may be grasped by the hands and may be attached to the extended bar and may be connected to the foot-brace unit. An optional scale may be secured to the foot-brace.

An exercise machine resistance selection system for efficiently and easily adjusting a resistance force applied against movement of a carriage in at least one direction. An exercise machine includes a frame having at least one rail and a carriage movably connected to the at least one rail. A biasing member is selectively and removably connected to the carriage by a first catch member, with the first catch member being adjustable between an engaged position in which the first catch member is adapted to engage with the biasing member to impart a resistance force against movement of the carriage and a disengaged position in which the first catch member is adapted to release biasing member. A first retaining member is adapted to retain the biasing member in place below the carriage when the biasing member is released from the first catch member.

In one embodiment, a kinetic shape is designed by determining an applied force to be applied to an object that is to incorporate the kinetic shape, determining a reactive force that is desired to be produced in response to the applied force, inputting the applied force and the reactive force into a kinetic shape equation, and solving the equation to obtain the kinetic shape.

A multifunctional mobile exercise apparatus and method for exercising the upper extremities is disclosed. The apparatus includes a base, an elongate shaft pivotally coupled to the base, a plurality of ground lockable ground wheels supporting the base. The apparatus includes a resistance clip that is selectively positionable along a length of the elongate shaft. A cylindrical sleeve may also be provided for sliding, with or without a resistance band, along the length of the elongate shaft. The mobile exercise apparatus provides single or bilateral hold for one or more resistance bands and the mobile arm. The resistance band and the mobile arm can be held by the injured or non-injured extremity. The elongate shaft and locks up to 8 feet high, and can also be used for the attachment jumbo resistance clips, or for the sliding exercises.

A system and method of using two exercise machines for performing a wide range of exercise movements that utilize both of the exercise machines in concert. The system and method of using two exercise machines generally includes first exercise machine and a second exercise machine which are used in concert to perform a wide range of exercise movements. The first exercise machine may include a track, a carriage movably connected to the track, and an end platform. The second exercise machine may include its own separate track, a carriage movably connected to the track, and an end platform. The exercise machines may be positioned side-to-side in parallel orientation such that an exerciser may perform various exercise moves by positioning different limbs on the respective carriages, end platforms, and/or tracks of the exercise machines, in addition to the surface underlying the exercise machines.

A climbing exercise machine includes a beam supported on two columns supported on a base. Two handles are movably supported on the columns, respectively. The handles are movable in opposite directions. Two treads are movably supported on the columns, respectively. The treads are movable in opposite directions. An input axle is supported on the columns. The input axle is rotated as the handles and the treads are moved. A transmission case connects the input axle to an output axle. A disc is connected to the output axle. A frame is connected to the beam. A resistance element is supported on the frame. The resistance element includes a magnet. The resistance element is movable relative to the disc to adjust magnetism exerted on the disc by the magnets.

A Push-up Bar exercise apparatus targeting various body muscles comprising a straight rod. Each end of bar has a hand grip and adjacent to it is a wheel for enhanced stability and ease of use. The push up bar wheels is also attachable and detachable for increased portability and productivity. And also present various levels of resistant bands which are attached to opposite end of device, to increase the amount of stress of muscles for progression

A Push-up Bar exercise apparatus targeting various body muscles comprising a straight rod. Each end of bar has a hand grip and adjacent to it is a wheel for enhanced stability and ease of use. The push up bar wheels is also attachable and detachable for increased portability and productivity. And also present various levels of resistant bands which are attached to opposite end of device, to increase the amount of stress of muscles for progression

A handheld exercise device includes an elongated handle and first and second stability heads. The stability heads are located at opposite ends of the handle, and each has a generally dome-shaped top side and generally planar underside. An arrangement of surface-engaging rollers projects from the planar underside of each stability head. The roller arrangement includes first and second inline rollers substantially aligned with a longitudinal axis of the handle, and a third roller laterally offset from the longitudinal axis of the handle.