An exercise device is described which includes a platform having a first end and a second end opposite the first end; first and second wheels, wherein the first wheel is positioned proximate the first end and the second wheel is positioned proximate the second end and the first and second wheels are configured to roll across a surface as the exercise device is displaced along the surface; a first motor configured to apply a first torque to the first wheel where the magnitude of the first torque is related to the distance of the exercise device from a zero position and the direction of the first torque urges movement of the exercise device toward the zero position. Versions are also described with more wheels and more motors.

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.

An exercise device is described which includes a platform having a first end and a second end opposite the first end; first and second wheels, wherein the first wheel is positioned proximate the first end and the second wheel is positioned proximate the second end and the first and second wheels are configured to roll across a surface as the exercise device is displaced along the surface; a first motor configured to apply a first torque to the first wheel where the magnitude of the first torque is related to the distance of the exercise device from a zero position and the direction of the first torque urges movement of the exercise device toward the zero position. Versions are also described with more wheels and more motors.

A preloaded resistance pack and exercise device. The resistance pack includes an elastomeric resistance element coupled to a hub and disposed on a plate. The hub includes a pair of radially extending wings that lie against a surface of the plate. The plate includes a pair of raised tabs that lie within a rotational path of the wings. An initial rotation of the hub relative to the plate causes the wings to slide over and beyond the raised tabs and at least partially stretches the resistance element. Interaction between the tabs and wings prevents the hub from rotating back to an initial position and maintains the resistance element in a preloaded, tensioned condition. The exercise device is configured to detect a number of the resistance packs coupled thereto as well as data associated with exercise movements employing the resistance packs.

A rowing machine has a base, a seat, a rotating plate, two oar components, a damping mechanism and a transmission mechanism; the base with a rack and a slope rail; the seat cushion slidably coupled to the rail; the rotating plate with a fixing rotating shaft rotatably assembled to the rack through the rotating shaft; two oar components respectively connected to the two ends of the rotating shaft by unilateral bearings in universal joining way to unilaterally drive the rotating plate to rotate when swinging; the rotation damping mechanism is assembled to the rack; the transmission mechanism assembled between the rotating plate and the damping mechanism to drive a damping wheel of the damping mechanism when the rotating plate rotates.

A portable single bicep exercising machine is disclosed. The machine may comprise articulable framework running about a length of a user's given arm. This framework may be divided into upper framework and lower framework, with an articulable fulcrum connecting the upper framework to the lower framework. In use the upper framework, at an under arm pad, may be retained in a user's should/armpit region; while the lower framework may comprise a handle to be engaged by the user's hand of that same arm. Also between this upper framework and this lower framework may be one or more tension means, such that when the handle is articulated towards the under arm pad, about the fulcrum, that articulation is through resistance. It is such resistance that exercises the bicep of that same given arm.

An upper limb exercise apparatus comprises a base, a frame, and a display mounted on the frame. The apparatus further comprises 5-bar linkage-type movable parts positioned on the display and including a first link and a second link. The first link comprises a 1-1 member having one end attached to the frame and being rotationally driven, and a 1-2 member having one end rotatably attached to the other end of the 1-1 member, the other end having attached thereto a handle for gripping. The second link comprises a 2-1 member having one end attached to the frame and being rotationally driven, and a 2-2 member having one end rotatably attached to the other end of the 2-1 member, the other end having attached thereto the handle and the other end of the 1-2 member. Series elastic actuators attached to the 1-1 member and the 2-1 member provide torque.

An abdominal exercise apparatus can include a track, at least one rolling member, a cart, and a base. The track can extend between first and second ends. The rolling member can be moveable along the track. The cart can support the rolling member for the movement along the track and be grasped by the user during exercise. The base can be engaged proximate to the first end and have a surface configured to receive the knees of the user during exercise. The second end can be pivotally movable about the base over an arcuate range by the user while exercising during the rectilinear and rolling movement along the track by the at least one rolling member. The apparatus can also include a structure such as a helical spring for resisting pivotal movement that is elastically deformable.

An exercise and rehabilitation bar including a flexing bar, at least one resistance insert, and at least one handle, The flexing bar has a first end, a second end, and a cavity running from the first end to the second end. The at least one resistance insert is removably carried within the cavity of the flexing bar and the at least one handle is removably securable to either the first or second end of the flexing bar,

An adjustable resistance exercise machine for providing variable resistance forces on a pull cable extending from the machine. The adjustable resistance exercise machine generally includes a plurality of power springs that may be selectively engaged using a cam mechanism. By engaging springs with different forces, the resistance may be adjusted incrementally as preferred for performing different exercises. The adjustable resistance exercise machine may be connected to various structures, either below or above an exerciser, to allow the exerciser to choose whether to pull the pull cable up or down during exercise.