Algorithm to Quantify Maximum Isometric Voluntary Contraction in Subjects with Osteoporosis

Abstract

Osteoporosis is a systemic disease characterized by low bone mass that enhance bone fragility and increases fracture risk. Just in 2005, a total of 21,000 hip fractures were registered in Mexico and it is expected to rise within the next thirty years. In order to reduce fractures, physicians at INR-LGII are implementing exercise programs focused on the improvement of muscle strength to have a better bone quality. This program has electromyography and strength as output variables which need to be processed for interpretation; this signal processing is performed by an algorithm that delivers the voluntary maximum isometric strength, as well as mean and length in seconds of the electromyography envelope.