A foldable exercise bike includes a cross configuration formed by a main frame with a treading-driven rotation mechanism at bottom and a seat at top and a second frame with a pivoting portion pivoted to a handle. The main frame has a first-positioning device, and one end of the first-positioning device is selectively fixed on the second frame, so that the main frame can be fixed with the second frame. The second frame has a second-positioning device, and one end of the second-positioning device is selectively fixed on the handle, so that the second frame can be fixed with the handle. A resistance device is between the second frame and handle. The length of the resistance device can be changed when the handle is swung relative to the second frame, thereby generating a resistance force opposing to the swing motion of the handle.

An exercise apparatus for performing a back extension exercise comprising: a frame, a seat having a seating surface (PS) and a pelvic stabilization pad having a lower back engagement surface (ES), an input arm assembly interconnected by a first interconnection to a first resistance mechanism, the input arm assembly including a manually graspable mechanism and being arranged on the apparatus such that the input arm assembly is pivotable beginning from a start motionless position along a path of travel forwardly away from the pelvic stabilization pad under resistance exerted by one or both of the resistance mechanisms, wherein the first resistance mechanism is adapted to increase resistance as the degree of pivoting of the input arm assembly increases along the path of travel forwardly away from the pelvic stabilization pad.

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 method of determining a more suitable appropriate pressure for use in muscle strength enhancement methods involving the restriction of blood flow.

The pressure of air in a gas bladder of a compression band is temporarily increased to a pressure higher than a presumed appropriate pressure and then gradually reduced. During this process, a pulse wave amplitude is measured, and a maximum pulse wave pressure, which is the pressure of the air in the gas bladder at a time when the pulse wave amplitude that is temporarily increased and then reduced has its maximum value is specified by a maximum pulse wave pressure specifying unit 12E. The unit 12E sends maximum pulse wave pressure data representing a maximum pulse wave pressure to an appropriate pressure calculating unit 12F. The unit 12F multiplies the maximum pulse wave pressure by a coefficient, to obtain an appropriate pressure.

A method of determining a more suitable appropriate pressure for use in muscle strength enhancement methods involving the restriction of blood flow.

The pressure of air in a gas bladder of a compression band is temporarily increased to a pressure higher than a presumed appropriate pressure and then gradually reduced. During this process, a pulse wave amplitude is measured, and a maximum pulse wave pressure, which is the pressure of the air in the gas bladder at a time when the pulse wave amplitude that is temporarily increased and then reduced has its maximum value is specified by a maximum pulse wave pressure specifying unit 12E. The unit 12E sends maximum pulse wave pressure data representing a maximum pulse wave pressure to an appropriate pressure calculating unit 12F. The unit 12F multiplies the maximum pulse wave pressure by a coefficient, to obtain an appropriate pressure.

A vertical stepping machine includes a frame, a crank wheel connected to the frame, a crank wheel connected to the frame, a pedal beam having a first end and a second end, wherein the first end is in mechanical communication with the crank wheel, a pedal connected to the second end of the pedal beam, a linkage assembly connected to the frame and to the pedal beam, an arm support rotatably connected to the frame, an arm linkage connecting the arm support to the linkage assembly, and a rotary resistance mechanism positioned above the crank wheel when the vertical stepping machine is in an upright orientation. The pedal beam moves in an elliptical path when the crank wheel rotates and the elliptical path has a vertical major axis and a horizontal minor axis when the vertical stepping machine is in an upright position.

The disclosure includes a maxillofacial rehabilitation device, comprising a frame and a dynamic actuation mechanism coupled to the frame. The frame can be configured to attach the device to the head of a user. The dynamic actuation mechanism can be configured to contact the mandible of the user, receive control signals from a controller, and move the mandible of the user in the sagittal plane and the vertical plane based on the control signals.

A system for assisting a user in strength training with a strength training device comprises a torque source. One or more magnetorheological (MR) fluid clutch apparatuses has an input coupled to torque source to receive torque from the torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of torque via an output thereof. A modulation inter face couples the output of the at least one MR fluid clutch apparatus to a force transmission of the training device. One or more sensors provide information indicative of a training action by the user. A training processor comprises a training effort calculator module for receiving the information indicative of the training action and for characterizing the training action, a training assistance controller module for determining a level of force assistance from the characterizing of the training action, and an assistance generator module for controlling the at least one MR fluid clutch apparatus in exerting the force assistance at said level on the force transmission of the training device to assist the user in the training action. A method for assisting a user in strength training with a MR fluid clutch apparatus is also provided.

An exercise machine is provided which is configured to place a user in an exercise position, wherein movement during exercise against a load will target the gluteus maximus muscles. The exercise machine positions the body of a user in a lowered or exercise position which supports the user while raising their body to an elevated position, in a manner to stabilize the user and direct movement of the user along the sagittal plane during use, while concurrently isolating the gluteus maximus muscles as the muscles overcoming the load.

A pool structure uses an installation to receive a treadmill within the pool. The installation has a pan which is embedded within the floor of the pool. A duct projects from the pan through a sidewall of the pool. A motor uses a mechanical transmission extending through the sidewall to provide motive power to the treadmill. Anchoring studs, which are drilled into the pool floor, are attached to the pan via a structural angle weldment.