Exemplary arrangements provide leg training devices suitable for high intensity training of hip flexors while simultaneously training the extensors of hip and knee joints. The exemplary leg training devices include foot fixings which are permanent vertically movable components of the device, each of which are configured to releasably engage a foot of a user in operative engagement therewith while limiting the movement of the foot relative to the foot fixings. Each of the foot fixings is operatively connected to a suitable mechanism that provides a resistance force to vertical movement of the foot fixing by the user's leg. In exemplary arrangements the resistance force may be selectively variable with regard to the magnitude and/or point of application so as to provide the desired training regimen.

An exercise system includes a base module having a seat with a seat depth, and a vertically adjustable back configured to fixedly engage with the base module at a first seat depth and a second seat depth different from the first seat depth.

A portable exercise device includes a pedal spaced away from and pivotably connected to a base and having a neutral position relative to a pivot axis. The pedal is configured to rotate about the pivot axis in a first direction toward the base and in a second direction, opposite the first direction, toward the base. The device also includes a resistance mechanism configured to exert a force on the pedal about the pivot axis in a direction opposite to the respective direction of rotation of the pedal. The device is movable between an open, in-use configuration, where the pedal is disposed in the neutral position to receive a foot and spaced away from the base, and a closed configuration, where the pedal is adjacent the base.

An apparatus (1) for exercising muscles comprises a power arm (2), which is pivotable about a pivot shaft (5), which is disposed on a holding element (6). The first articulation point (7) at which a compression spring element (9) is linked to the power arm (2) is adjustable along the power arm (2). To achieve this, one end region (8) of the compression spring element (9) is provided with a first joint surface (14), and a series of second joint surfaces (16), which are designed complementary to the first joint surface (14), is disposed across an adjustment zone (10) along the power arm (2). The first joint surface (14) is operatively connectible to one of the second joint surfaces (16), and the power arm (2) is pressed via a further spring element (18) toward the one end region (8) of the compression spring element (9) such that the two operatively connected joint surfaces are kept in contact with each other. Resulting thereby is a simple possibility of adjustment of the force to be applied to the power arm.

A bicycle trainer, including a base, permitting fore and aft movement and a frame, supported by the base. Also, a seat and a handlebar assembly and a pedaling assembly is supported by the frame. The handlebar assembly is rotatably engaged to the frame, and is supported by a tongue, that is hinged to the base so as to permit horizontal rotation, and the handlebar assembly is attached to the tongue at a position removed from the hinge. Turning the handlebars causes the frame to move laterally.

A compact, portable, lightweight, easily transportable leg press exercise apparatus to simulate both exercise and the daily activity of sitting in a microgravity environment. The exercise portion of the apparatus creates stress on the lower extremities by supplying a variable resistance to a reciprocating foot pedal by way of a coil spring and damper system acting through a four-bar linkage. The chair is adjustable in angle to fit each user and to simulate a force that is two-thirds of body weight. By combining resistance exercise and lower body negative pressure with the LBNP leg press exercise apparatus, the users experience one or more times body weight (BW) in stress on their musculoskeletal, cardiovascular and nervous systems. By achieving one times BW or greater (artificial gravity) during exercise and two-thirds BW during sitting, the gap between the precondition and post condition syndrome will become smaller.

A compression-resistant device includes least one pair of first and second opposing jaw members having respective engaging surfaces for movement from an open position receiving an object and a closed position engaging the object. A manual compression surface enables a user to manually apply pressure to urge the engaging surfaces from one of the closed position towards an open position or from the open position towards the closed position. At least one resistance member interfaces with the first and second opposing jaw members to resist pressure manually applied by a user urging the engaging surfaces from the closed position towards the open position or from the open position towards the closed position. The manual compression surface includes projections such that manually applied pressure forms at least one aggravated area on a finger surface of the user to initiate a callus. A corresponding method of operating the device is also disclosed.

Disclosed is a masticatory muscle exercise device. The masticatory muscle exercise device includes: an upper mouthpiece; a lower mouthpiece; and at least one elastic member applying elasticity to the upper mouthpiece and the lower mouthpiece. According to the masticatory muscle exercise device, a user can strengthen his/her masticatory muscles by actively exercising.

A squat rack includes a frame, a tread unit, a lifting unit, a pulling unit and a connector. The tread unit includes two treads connected to and located on two sides of the frame for supporting a user's feet so that the frame is firmly kept on the ground by the user. The lifting unit is pivotally connected to the frame and located behind the user in operation. The pulling unit includes a middle portion pivotally connected to a front end of the frame. The connector pivotally connects a lower end of the pulling unit to the lifting unit so that the user can pull the pulling unit to cause the lifting unit to support the user's hips via the connector.

An exercise device includes a pivot adjustably positioned at an intermediate point along the length of an elongate support element. One or more lower body supports are mounted on the elongate support element on a first side of the pivot and one or more upper body supports mounted on the elongate support on a second side of the pivot. The device may be used in push up, sit up, inverted pull up or leg raise modes.