Abstract: A flexible ring is disclosed comprising one or more coiled springs and/or polymeric ring(s). In some embodiments, the coiled spring envelopes one or more inner coiled springs. In other embodiments, one or more handles circumscribe a portion of the outer coiled spring. Various embodiments of the present invention substitute flexible polymeric members for the coiled spring. In other embodiments, a disc is substituted for the polymeric ring(s).

Abstract: A flexible ring is disclosed comprising one or more coiled springs and/or polymeric ring(s). In some embodiments, the coiled spring envelopes one or more inner coiled springs. In other embodiments, one or more handles circumscribe a portion of the outer coiled spring. Various embodiments of the present invention substitute flexible polymeric members for the coiled spring. In other embodiments, a disc is substituted for the polymeric ring(s).

Abstract: A flexible band and/or chain is disclosed comprising a plurality of rings, links, or touri. In some embodiments, the links are interlocking In other embodiments, the links are affixed to one another in linear fashion. The links a gripable, and serve as handles for a user needing to target specific muscle groups for exercise by applying tensile force to the chain. The chain stretches. Some variations include detachable handles which can at attached at the ends of the chain or to links forming it.

Abstract: A non-planar exercise mat is disclosed comprising a plurality of detachable handheld implements, each handheld implement serving utilitarian function independently of the mat. Various embodiments of the present invention comprise permanently affixed or detachable cushions for tail-bone support; lumbar support; neck support, and the like. Various embodiments include handles for assisting a user in performing a variety of exercises upon, or optionally using, the mat.

Abstract: A portable isotonic compression-expansion exercise device is disclosed which can also function as a recreational object, therapy tool, and strength measurement apparatus. One embodiment comprises of an elastomeric, resilient ball with a detachable removable and interchangeable exterior resistance band with two opposing handles. Some embodiments include a pneumatic airflow control valve, which valve reaches into the hollow core of an internal foam center. Resistance from the device during these exercises comes from static pneumatic resistance from within the sealed elastic object, changing pneumatic resistance as air flows in and out of the foam-filled device through the airflow control valve. Internal springs, internal foam resistance, external band(s) on the device's surface, and/or internal apparatus can create multiple forms of resistance. The disclosed device, in some embodiments, further comprises a strength measurement gauge in the form of an air pressure gauge.