A lateral elliptical trainer includes foot support platforms and an adjustment system configured to adjust the amount of lateral movement of the foot support platforms. The adjustment system includes a cable operative to adjust the amount of lateral movement of the foot support platforms. The cable is coupled to an actuator that is controllable by a user to enable the user to set the amount of lateral movement of the foot support platforms.

An exercise machine may include a stationary frame, an inclinable portion movably connected to the stationary frame, and an incline mechanism connected to the stationary frame. The incline mechanism may include a coiling mechanism, a coiling rod of the coiling mechanism, a flexible coiling link movable with a rotation of the coiling rod, and where the flexible coiling link is connected to the inclinable portion.

In various embodiments, provided herein are systems, methods, processes, and devices for providing locomotive rehabilitation to a subject via one or more gait motions that substantially accurately mimic motions performed in healthy, natural gait cycles. The system may mimic natural gait motions via footplates and handles, and one or more linkage systems. In particular embodiments, the system may further include a motor unit and/or clutch for providing controlled forces assisting or resisting motions of a linkage system. Further, the system may include a tower for operating in a standing or seated position. In at least one embodiment, the system includes a body weight support system that provides offloading forces to a subject.

An adjustable elliptical trainer is disclosed, which includes a body, a sliding rail, a connecting piece and a movement mechanism. The sliding rail has one end rotatably connected to the body around an axis and an other end detachably connected to the body by the connecting piece along a longitudinal extension direction of the sliding rail. The movement mechanism includes a sliding part matched with the sliding rail, and the sliding part is provided on the sliding rail and is slidable along the sliding rail. The axis is perpendicular to the longitudinal extension direction of the sliding rail, a first connection point is provided at a joint between the connecting piece and the sliding rail, and a second connection point is provided at a joint between the connecting piece and the body, the connecting piece is configured to be movable relative to the sliding rail and/or the body.

A reciprocating dynamometer assesses human physical capacity and muscle composition by: (1) simultaneously working all four limbs of the body through a full range of motion while maximally loading the muscles through a full range of speeds; (2) simultaneously capturing the reciprocating torques and reciprocating angular velocities of all four reciprocating limbs, and (3) adjusting to provide similar ranges of motion for limb joints of human subjects of different body height and limb length. Levers provide synchronized, reciprocating, angular movements for handles and pedals while adjustable brakes oppose reciprocating motion during a 15 second test of maximal exertion. Measurements of elapsed time, torque input to each lever and angular displacement of each lever enable a plot of cyclical moving average of power over cycle frequency for each limb. Peak cyclical power is the maximal rate of work performed, averaged over one movement cycle. Cycle frequency at peak cyclical power is a noninvasive reflection of muscle composition (fiber typing). Fundamental to this device and method is use of moving averages based not on time, but on movement cycle.

An elliptical trainer is provided with a frame, a resistance device, two cranks, two waving assemblies, and two flexible members. The frame includes a first pivot. The resistance device provides a resistance and includes a wheel with an axis. The two cranks are arranged at a left and a right side of the wheel, respectively, and each crank has a first end coupling with the axis. The two waving assemblies are arranged at a left and a right side of the frame, respectively, and each waving assembly has a front end pivotally coupling with the first pivot and a second end coupling with a pedal. In addition, each crank has a second end coupling with a corresponding waving assembly, and each flexible member has a first end indirectly pivoted to the first pivot and a second end coupled to a corresponding waving assembly.

Exercise apparatus (10) has two wheels (12, 12) rotatably mounted to a base 14, 14, spaced apart and each located within a housing (15, 15) respectively. Pivotably connected to the wheel is a cam (16). The other end of cam 16 is pivotably connected to a push rod (17) which is pivotably connected to a handle (18) which is rotatably mounted in a housing (20). Housing (20) is pivotably mounted to the arm (16) such that movement of the arm in a vertical plane up or down by operating on the handle causes an elliptical rotation of the arm relative to the wheel (12).

An exercise device having (-) a frame, (-) left and right leg linkages, each including (i) an upper leg member pivotally coupled to the frame for pivoting about an upper pivot point with the upper pivot point of each leg linkage defining a point on a laterally extending upper pivot axis that passes through the upper pivot point of each leg linkage, and (ii) a lower leg member directly pivotally coupled to the upper leg member distal to the upper pivot point for pivoting about a lower pivot point, and (-) a foot support attached to each lower leg member distal to each respective lower pivot point. The invention characterized by an ergonomically synergistic spatial orientation and relationship amongst and between the upper leg members, lower leg members, upper pivot axis, lower pivot axis, hip region of a user, knees of a user, a biased damping means in communication with the lower leg members, and an interconnect member interconnecting the lower leg links with and the biased damping means.

A vertical stepping machine includes a frame, a crank wheel connected to the frame, a crank arm extending away from a rotational axis of the crank wheel, and a pedal beam connected to the crank arm. A linkage assembly is connected to the frame at a fixed frame location and to the pedal beam at a fixed pedal beam location. A first linkage member of the linkage assembly has a length that forces the pedal beam to travel along an elliptical path as the crank wheel rotates.

A composite motion exercise machine includes a control panel which provides a plurality of movement modes and allows a user to issue a command to change the configuration of linkage units of the exercise machine to have the machine perform a movement mode without manual adjustment, so that the pedal of each linkage unit can be moved along a closed trajectory. The control panel also allows the user to finely adjust the trajectory and the resistance associated therewith. The trajectory performed by each pedal of the exercise machine is ergonomic so that the user can be protected from exercise injury.