A method of differentially tuning a lower limb muscle in a human in need thereof is provided. The method includes placement of at least two calibrated, differential disturbances or protuberances under the human's feet thereby tuning a lower limb muscle.

Hand-held, portable exercise device which enables the user to strengthen muscles and joints by performing various exercises, the device having a base structure defining a receptacle and supporting at least three omnidirectional rotational elements. A grip element, which may be spherical, has a lower surface positionable on the receptacle and has an upper gripping surface that is convex in at least two dimensions. A hand retaining strap is positionable over the gripping surface of the grip element such that a hand of a human user, the hand having a palm surface and a back surface, can be inserted between the retaining strap and the gripping surface, the palm surface of the user's hand contacting the gripping surface while the retaining strap contacts the back surface of the user's hand to secure the exercise device to the hand.

An ankle exerciser for exercising a user's ankles and includes a base, two pedals and two rotary units. The pedals and the rotary units are installed to the base. The rotary units are located between the base and the pedals so as to allow the pedals to be pivoted in multiple directions so as to stretch the ankles, and to keep ankles healthy.

The multi-modal portable exercise equipment of the present invention includes matable first and second generally hemispheric exercise half bodies that in mated condition provide a generally spherical exercise ball that in one exercise modality of the multi-modal portable exercise equipment of the present invention is attached to external exercise equipment such as the cable of an exercise machine or resistance band and can be used by a subject for strength and other allied training exercises and that in another exercise modality thereof the first and second generally hemispheric exercise half bodies in unmated condition each provide a freestanding generally hemispheric exercise half body and can be used by a subject for balance and other allied training exercises. The first and second generally hemispheric exercise half bodies in unmated condition are each constituted of a plurality of spherical caps in nested relation that may be unpacked and used by a subject for balance and other allied training exercises of low, medium and high use difficulty.

An exercise device that exercises both flexor and extensor muscles. The exercise device includes a base. First and second sidewalls upwardly extend from opposing sides of the base. Each of the first and second sidewall has a plurality of teeth formed on an upper rim extending from the front end to the rear end of the base. At least a first gear is secured to a first end of an elongated rod and at least a second gear is secured to a second end of the elongated rod. A plurality of teeth of the first gear interlock with the plurality of teeth of the first sidewall and a plurality of teeth of the second gear interlock with the plurality of teeth of the second sidewall. A board rests on the elongated rod in between the first end and the second end.

A functional shoe includes a sole, a functional part to provide a specific function to the functional shoe, a fixing part provided to fix the functional part; and a coupling part provided to be coupled to the fixing part, and directly or indirectly coupled to the sole, at an opposite side to a side coupled to the fixing part. The fixing part includes a fixing body provided to be coupled to the functional part, and a leg member formed to extend from the fixing body in a reference direction which is a direction facing the sole from the fixing body. The coupling part includes an insertion slot provided inside the coupling part to be open in a direction opposite to the reference direction such that the leg member is inserted into the insertion slot.

An ankle exerciser for exercising a user's ankles and includes a base, two pedals and two rotary units. The pedals and the rotary units are installed to the base. The rotary units are located between the base and the pedals so as to allow the pedals to be pivoted in multiple directions so as to stretch the ankles, and to keep ankles healthy.

A foot-pedaling exercise apparatus by which a user can perform an effective foot-pedaling exercise is provided. A foot-pedaling exercise apparatus includes a crank, a main-body part configured to rotatably hold the crank, a link rotatably connected to the crank, the link including a pedal on which a sitting user puts his/her foot, a moving member disposed in the link, and a tilt table including an inclined surface on which the moving member slides.

An exercise device is provided for use in connection with at least one bodyweight exercise. The device has a grip handle and a forearm support at substantially a perpendicular arrangement with the grip handle, allowing a user to grasp the grip handle and simultaneously place a forearm into the device. A curved finger shield region covers the grip handle and a curved forearm region covers the forearm support. The curved finger shield region and the curved forearm region form a contiguous curved surface with a substantially perpendicular transition between the two, such that a user grasping the grip handle and simultaneously resting their forearm on the forearm region, can support at least a portion of their body weight on either one of the curved finger shield regions or the curved forearm region.

Sole Flo Balance Boards relates to balance boards and solves the problem of not being able to move around when using a balance board. These balance boards provide one with the ability to practice balancing while moving. Sole Flo Balance boards uses hook and loop cinch straps that are attached to the board so that a person can fasten the boards to their feet and therefore move into different position while trying to maintain and develop their balance.