Abstract: Resistance garments include for example a first cuff and a second cuff that circumscribe a portion of a wearer's body; an adjustment device fixedly attached to the first cuff; and a resistive element connecting the first cuff and the second cuff, and coupling with the adjustment device. An active material includes a backing fabric and one or more length-adjusting devices, that each include a first filament and a second filament that are interwoven with the backing fabric and substantially parallel with one another, and one or more motors. Each of the motors drives first and second spooling elements that alternatively reel in or reel out portions of the first and second filaments, respectively. The reeling in or out thereby adjusts (a) a length of the filaments, (b) a length of the length-adjusting device corresponding to the at least one motor, and (c) a length of the active material.

Abstract: Resistance garments include for example a first cuff and a second cuff that circumscribe a portion of a wearer's body; an adjustment device fixedly attached to the first cuff; and a resistive element connecting the first cuff and the second cuff, and coupling with the adjustment device. An active material includes a backing fabric and one or more length-adjusting devices, that each include a first filament and a second filament that are interwoven with the backing fabric and substantially parallel with one another, and one or more motors. Each of the motors drives first and second spooling elements that alternatively reel in or reel out portions of the first and second filaments, respectively. The reeling in or out thereby adjusts (a) a length of the filaments, (b) a length of the length-adjusting device corresponding to the at least one motor, and (c) a length of the active material.

Abstract: Resistance garments for providing increased benefits of physical exertion are described herein. The resistance garments provide for manual adjustment or automated adjustment of the tension in resistive elements and/or rods. Adjustment devices such as clam cleats, hooks, knobs, ratchet pulleys, spring loaded pulleys, automated resistance devices, and automated ratchet pulleys are disclosed.