A method is disclosed for using an artificial intelligence engine to modify resistance of pedals of an exercise device. The method includes generating, by the artificial intelligence engine, a machine learning model trained to receive measurements as input, and outputting, based on the measurements, a control instruction that causes the exercise device to modify, independently from each other, the resistance of the pedals. While a user performs an exercise using the exercise device, the method includes receiving the measurements from sensors associated with the pedals. The method includes determining, based on the measurements, a quantifiable or qualitative modification to the resistance provided by a pedal of the pedals. The resistance provided by another pedal of the pedals is not modified. The method includes transmitting the control instruction to the exercise device to cause the resistance provided by the pedal to be modified.

An active suspension orthotic support system is disclosed. The suspension orthotic support system comprises at least one variable resistance beam extending from a heel section to a mid-arch section of the footwear, wherein rotation of the variable resistance beam from a first position to a second position causes a resistance provided by the variable resistance beam to vary between a minimum resistance to a maximum resistance.

A weight apparatus includes a handle, first and second anchorages mounted to first and second ends of the handle, respectively, the handle and the first and second anchorages having an axially extending opening, first and second rods axially movable inside the axially extending opening and adapted to be moved axially relative to the axially extending opening in opposite directions upon rotation of first and second pinion gears in the first and second anchorages, respectively, that engage with first and second racks on the first and second rods, respectively, and a lock having a locked condition in which rotation of the first and second pinion gears is prevented and an unlocked condition in which rotation of the first and second pinion gears is permitted.

A shoulder strengthening apparatus includes a base, a shaft having a distal end portion and a proximal end portion pivotably coupled to the base, a hand rest coupled to the distal end portion of the shaft such that the hand rest is configured to move with the shaft relative to the base, and a resistance mechanism configured to restrict movement of the shaft relative to the base.

A pivoting lower limb therapy device formed from a lever frame having a handle portion integral with its proximal end and a first orthotic portion adjacent to its distal end, a base frame having a second orthotic portion integral with its proximal frame end and a surface support portion integral with its distal frame end, with the lever frame rotatably attached to the base frame so as to permit the first orthotic portion to move across two dimensions relative to the second orthotic portion in response to an exertion of mechanical force on the handle portion. The pivoting lower limb therapy device may also include a strap assembly connected to and extending between the proximal end of the lever frame and the proximal frame end of the base frame so as to exert mechanical force on the two frame members.

An exercise machine resistance selection system for efficiently and easily adjusting a resistance force applied against movement of a carriage in at least one direction. An exercise machine includes a frame having at least one rail and a carriage movably connected to the at least one rail. A biasing member is selectively and removably connected to the carriage by a first catch member, with the first catch member being adjustable between an engaged position in which the first catch member is adapted to engage with the biasing member to impart a resistance force against movement of the carriage and a disengaged position in which the first catch member is adapted to release biasing member. A first retaining member is adapted to retain the biasing member in place below the carriage when the biasing member is released from the first catch member.

An exercise device with controllable training modes includes a base, a first exercise mechanism, a second exercise mechanism, and an operating mechanism. The first exercise mechanism has a first gear member. The second exercise mechanism has a second gear member. The operating mechanism has a third gear member. When the third gear member is at a first position, the third gear member meshes with the first gear member and the second gear member to form a linked state, so that the first exercise mechanism and the second exercise mechanism are operatively linked and coupled and swing in opposite directions. When the third gear member is at a second position, the third gear member is disengaged from either the first gear member or the second gear member or both to form a free state, so that the first exercise mechanism and the second exercise mechanism individually swing.

In one example, a muscle exercise device includes a first arm, a second arm rotatably connected to the first arm, and the second arm and first arm configured to cooperatively define a recess. The muscle exercise device also includes a resistance element configured to reside in the recess and be compressed between the first arm and the second arm, and a wireless transmitter disposed in either the first arm or the second arm, wherein the wireless transmitter is responsive to communications from an app residing on a user device.

The apparatus provides an exercise device that is portable, versatile, and enables the user to match the resistance of the device with the normal physiologic length-tension relationship of skeletal muscle. The device adds resistance in the form of cartridges that are stackable to summate resistance and can connect to a variety of attachments for use with arms, legs, or trunk, i.e., handle, bar, loop, etc. Given the device’s portability, it can be used freestyle or mounted to various surfaces.

A fitness device comprises a force applicator comprising: a base; a first fixed wheel comprising a first center pivotally fixed to the base, and configured to allow rotation of the first fixed wheel about the first center; a second fixed wheel comprising a second center pivotally fixed to the base, and configured to allow rotation of the second fixed wheel about the second center, wherein the second fixed wheel is substantially in line with the first fixed wheel; and a movable wheel positioned above and between the first fixed wheel and the second fixed wheel, and comprising a movable center configured to move either toward, or away from, the first fixed wheel and the second fixed wheel, and is configured to allow rotation of the movable wheel about the movable center; an elastic element, placed between the nut and the fixing element, and a rope configured to be accommodated in the force applicator. Additional embodiments of the fitness device are disclosed herein.