Abstract: Universal muscular conditioning devices provide for the placement of two bidirectionally acting, frictionally resistant elements on opposite sides of a joint, in order to require a wearer of the device(s) to provide additional muscular exertion against the frictional resistance and thereby build muscular and joint strength. One embodiment includes a wrap which may be adjustably secured about the joint(s) or limb(s) of differently sized persons, thus eliminating the need for numerous such devices to fit different users. The wrap includes a plurality of pockets or sleeves, into which two of the frictionally resistive elements may be placed opposite one another, to the lateral and medial sides of the joint and essentially coaxial with the joint center.

Abstract: A plurally pocketed belt is wearable by a sleeping person, and provides for pressure responsive alerting devices to be inserted within one or more of the pockets. The pockets are preferably disposed in the central back, lateral, and/or rearward lateral areas of the belt when the belt is being worn, thus providing a variety of placement choices for the anti-snoring devices which may be installed therein. The devices may comprise an electromechanical vibrator, activated by a pressure switch when the device is positioned between the sleeper and an underlying surface, and/or rigid, monolithic devices having multiple projections which serve to encourage the sleeper to shift positions when disposed between the sleeper and an underlying surface. The relatively non-compliant devices provide better stimulus to encourage the sleeper to shift positions than other, softer devices developed, and provide a variety of stimuli in order that a sleeper cannot become accustomed to a single type of stimulus.