Abstract: A brace assists a user in regaining extension and hyperextension flexibility in an injured joint as well as aiding in resistance training in order to regain lost muscle mass about the joint. The system uses a pair of plates that each attach to a lateral side of one of the limb-encircling sleeves of the brace. An interchangeable resistance band is attached to each plate, either in the posterior or anterior position. The resistance band introduces static loading when the user is at rest as well as dynamic loading when the user is utilizing the joint. A pivot system can be used to offer the resistance band a medially located pivot point so that the resistance band offers variable resistance during dynamic loading.

Abstract: A brace assists a user in regaining muscle mass during the back to work phase of joint injury recovery. The brace uses a resistance band that is attached to the upper arm and the lower arm of the brace. Proximate the arms' juncture point, a pair of gears is attached, one gear per arm with a gap between the gears. The gears rotate in lockstep with their respective arm. A variation piece has two sets of teeth, each set gearably mating with one of the gears so that rotation of the gears causes the variation piece to linearly extend and counter-rotation causes the variation piece to retract. A medial portion of the band is received by the variation piece so that as variation piece extends, it places additional tension on the band, which tension placement is reduced with variation piece retraction.