An elliptical exerciser capable of adjusting a stride length contains: frame, a transmission device, a crank mechanism, and an adjustable movement unit. The transmission device is connected on the pedestal and includes a pulley. The crank mechanism is coaxial with the pulley of the transmission device and is rotatably connected on the frame. The adjustable movement unit is rotatably connected on the frame and is coupled with the transmission device via the crank mechanism. The adjustable movement unit includes two four-connection-rod assemblies which are located on two sides of the frame, and a respective four-connection-rod assembly of the adjustable movement unit has an adjustment lever, a post, a manual swing lever, and a horizontal joining rod. The adjustment lever has multiple rotatable connection points which are spaced, and the manual swing lever is rotatably connected on the frame.

Described herein are embodiments of stationary exercise machines having reciprocating foot and/or hand members, such as foot pedals that move in a closed loop path. Some embodiments can include reciprocating foot pedals that cause a user's feet to move along a closed loop path that is substantially inclined, such that the foot motion simulates a climbing motion more than a flat walking or running motion. Some embodiments can further include reciprocating handles that are configured to move in coordination with the foot via a linkage to a crank wheel also coupled to the foot pedals. Variable resistance can be provided via a rotating air-resistance based mechanism, via a magnetism based mechanism, and/or via other mechanisms, one or more of which can be rapidly adjustable while the user is using the machine.

An elliptical exerciser capable of adjusting a stride length contains: frame, a transmission device, a crank mechanism, and an adjustable movement unit. The transmission device is connected on the pedestal and includes a pulley. The crank mechanism is coaxial with the pulley of the transmission device and is rotatably connected on the frame. The adjustable movement unit is rotatably connected on the frame and is coupled with the transmission device via the crank mechanism. The adjustable movement unit includes two four-connection-rod assemblies which are located on two sides of the frame, and a respective four-connection-rod assembly of the adjustable movement unit has an adjustment lever, a post, a manual swing lever, and a horizontal joining rod. The adjustment lever has multiple rotatable connection points which are spaced, and the manual swing lever is rotatably connected on the frame.

An exercise assist device transitively moves a sacroiliac joint in a lateral decubitus position. The following description is provided in the context of a left lateral decubitus position. The upper right leg is placed on a stand in the lateral decubitus position, and the upper right leg is then extended transitively backward with a sacral area supported by a sacrum support pad. Since a posterior side of a lower left sacroiliac joint is slightly opened, a sacrum slides backward via a right hip joint. This improves mobility of the lower left sacroiliac joint.

A treadmill includes a treadmill frame having a front end and a rear end opposite the front end; a front running belt pulley coupled to the treadmill frame at or near the front end; a rear running belt pulley coupled to the treadmill frame at or near the rear end; a running belt disposed about the front and rear running belt pulleys, the running belt adapted for rotation about the front and rear running belt pulleys and defining a non-planar running surface; and a brake coupled to the running belt and adapted to selectively restrict the speed of rotation of the running belt depending upon an established limit for the speed of the running belt.

Described herein are embodiments of stationary exercise machines having reciprocating foot and/or hand members, such as foot pedals that move in a closed loop path. Some embodiments can include reciprocating foot pedals that cause a user's feet to move along a closed loop path that is substantially inclined, such that the foot motion simulates a climbing motion more than a flat walking or running motion. Some embodiments can further include reciprocating handles that are configured to move in coordination with the foot via a linkage to a crank wheel also coupled to the foot pedals. Variable resistance can be provided via a rotating air-resistance based mechanism, via a magnetism based mechanism, and/or via other mechanisms, one or more of which can be rapidly adjustable while the user is using the machine.

A treadmill includes a frame; a rotatable element coupled to the frame; a running belt at least partially supported by the rotatable element; and, a first element and a second element, both of which are coupled to the running belt. The running belt includes a running surface, at least a portion of which is curved. Further, one of the first and second elements and the running belt freely rotate in a first direction of rotation relative to the frame. However, in a second direction of rotation, opposite the first direction of rotation, the one of the first and second elements is substantially prevented from rotation relative to the frame to substantially prevent or resist rotation of the running belt relative to the frame.

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.

A manually powered treadmill includes a frame; a first rotatable element coupled to the frame; a second rotatable element coupled to the frame; a plurality of bearings coupled to the frame; a running belt at least partly supported by the plurality of bearings, where at least a portion of the running belt defines a curved running surface; and a safety device coupled to at least one of the first rotatable element and the second rotatable element. The safety device is structured to substantially prevent rotation of the at least one of the first rotatable element and the second rotatable element in a first rotational direction and permit rotation of the at least one of the first rotatable element and the second rotatable element in a second rotational direction opposite the first rotational direction.

A method of encouraging exercise collects motion data of a user of a type of exercise machine. It is determined whether the user is in a good state according to the motion data. If the user is deemed in a good state, the motion data are sent to a cloud server. Ranking information of multiple users on same type of exercise machine are received from the cloud server. The ranking information is displayed on a touch screen of the exercise machine. The method realizes interaction of the user on a virtual reality basis, and improves exercise motivation of the user.