Patent Document ID: 6119516
Application ID: 09084440
Patent Flag: 1

Claim One:
1. A biofeedback system for sensing and signalling the occurrence and range of selectable twisting and bending body motions, comprising: a body appliance, said appliance comprising at least two separate components, each said component having at least one anchor point, each said anchor point having a unique identifier code, at least one gravity independent mechanically compliant motion sensor for sensing relative motion between selected said anchor points, at least two ends of said sensor attachable to respective anchor points on each of a selected two said components, said sensor comprising a compliant spring member mounted in tension with a measurable electrical output signal that varies with said tension and electrical leads by which said signal is measured, and means for monitoring said signal and generating therefrom as said feedback a limited set of tones of stepped audio frequency, each successive said tone representing an incrementally greater amount of said signal.