Special Operations Forces Combatant Motion Recording and Biofeedback

Period of Performance: 11/14/2002 - 05/14/2003


Phase 1 SBIR

Recipient Firm

Qualvox Corporation
503 1/2 6th Street, Ste. 5
Rapid City, SD 57701
Principal Investigator


Qualvox's FreeMotion Trainer will integrate advances in accelerometers, magneto-resistive sensors, rechargeable battery technology, low-power processors, and high-density memory devices roviding a motion analysis system with superior performance, reliability and usefulness. The system will consist of: sixteen sensor modules located on target body segments and one processor board all packaged in a low-profile bodysuit. The FreeMotion Trainer's high sampling rates and long record times will allow new insight into human motion in many different applications. A key innovation enabling these capabilities is our adaptive sample rate algorithm that will automatically switch to a high sample rate when impact threats are exhibited, thereby preserving the operational battery life and memory resources for longer periods. The combination of these technologies will provide a system that has a maximum sample rate of 2000 Hz and a continuous operational life of 24 hours at a minimum sample rate of 60 Hz. The FreeMotion Trainer will have a number of applications, such as sports medicine, sports equipment development, insurance, occupational and physical therapy, fraud detection in worker's compensation claims, automotive crash research and pain and suffering measurement for personal injury suits. For example, the sensor suit and biofeedback system could potentially be used in the study of occupational injuries due to strenuous lifting and other manual material handling tasks. Many companies and government agencies (OSHA, NIOSH, MSHA, Workers' Compensation Commissions, etc.) would have great interest in such a system that would reduce the frequency and severity of musculoskeletal injuries attributable to strenuous and highly dynamic physical tasks in the workplace. This technology also has applications in other government and department of defense applications, such as combatant performance and vital statistics monitoring, astronaut monitoring, robotic control through biometric modeling, real-time robot control, NASA research and military training. The FreeMotion Trainer will also be applicable in the field of computer human interaction with virtual training simulators. FreeMotion will provide greater interaction and reduced burden on trainees participating in virtual training scenarios.