Abstract: An exercise apparatus for high intensity interval training includes a pair of elastomer tubing devices being stretchable beyond a resting length and further having a first end forming a hand grip for a user, and an opposing end including an anchor portion to enable releasable attachment to a fixed mount. The elastomer tubing devices are independently affixable to one or more fixed mounts at a first distance between the respective anchor portions along a transverse plane and a second distance above ground level to permit independent or tandem oscillation by the user, wherein the elastomer tubing devices are stretched a predetermined distance beyond the resting length and maintained approximately at the predetermined distance during the oscillation. Mechanical impedance of the elastomer tubing devices is adjustable by the user working against inertia generated during the oscillation.

Abstract: An exercise apparatus for high intensity interval training, comprising a pair of elastomer tubing devices, each elastomer tubing device having a resting length, a resting inner diameter, a resting outer diameter, and a tube thickness. Each elastomer tubing device is stretchable beyond the resting length and further has a first end comprising a segment having a second outer diameter greater than said resting outer diameter for forming a hand grip for a user, and an opposing end including anchor portion to enable said opposing end to be releasably attached to a fixed mount. The elastomer tubing devices are independently affixable to one or more fixed mounts at a first distance between said opposing ends and a second distance above ground level to permit independent or tandem oscillation of the elastomer tubing devices by the user, said elastomer tubing devices being stretched a predetermined distance beyond the resting length and maintained at said predetermined distance during said oscillation.

Abstract: An input interface for an electronic device is disclosed. The input interface includes a touch-sensitive switch supported by a board member. The input interface further includes a push-sensitive switch supported by a circuit board. The board member and circuit board will typically be generally planar and included within substantially parallel layers of the input interface. The touch-sensitive switch and push-sensitive switch form a switch pair that may be associated with a display control function invoked upon actuation of both of the switches.

Abstract: A belt is provided with an inflatable bladder which, when inflated, is permitted to expand toward an interior of the belt and prevented by a barrier from expanding toward an exterior of the belt. A pressure gauge indicates the pressure within the bladder, and the gauge is fixedly displaced relative to the belt and the user such that the gauge may be viewed by a user when the belt is worn without significantly moving the cervical spine substantially out of a neutral posture.