US Patent 10321873 Smart clothing for ambulatory human motion capture

This invention is smart clothing (such as a shirt or pair of pants) for ambulatory motion capture comprising: an article of clothing; an electromagnetic energy emitter; an electromagnetic energy receiver; a helical stretching and/or bending electromagnetic energy pathway that spans a body joint, wherein motion of the body joint stretches and/or bends the pathway, and wherein stretching and/or bending of the pathway changes the flow of electromagnetic energy from the emitter to the receiver; and a data processor, wherein the data processor analyzes changes in the flow in order to measure motion of the body joint.