A collection of patient-worn devices consisting of both an electromyographic sensor and motion-based sensor intended to be used in a clinical setting as part of a system (e.g., virtual-display rehabilitation system, biomechanical analysis system) to provide non-gravity-compensating analysis, biofeedback, and/or interactive rehabilitation of neuromuscular/musculoskeletal conditions. It is typically intended to be used with a computer, interface devices, and software (not included).