Mobile Gait Analysis System for Lower Limb Amputee High-Level Activity Rehabilitation
Annual rept. 1 Sep 2012-31 Aug 2013
BATTELLE MEMORIAL INST OAK RIDGE TN
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The goal of this research is to develop a mobile gait analysis system MGAS for soldiers with lower limb prosthetics to enable improved prosthetic fit, alignment, training, and ultimately re-introduction into pre-injury activities. The system measures the ground reaction forces on the prosthetic foot and determines joint angles and limb segment positions during activities taking place outside of a conventional gait analysis laboratory. This year a number of activities were completed, all focused on verifying the system concept on patients at the CFI. The Mobile Ground Reaction Force Sensor was designed and two systems were constructed and successfully tested in patient studies at the CFI. Otto Bock s most recent smart pylon forcemoment sensor design also demonstrated good accuracy in patient tests. Inertial Measurement Units IMUs were constructed, patient data collected at CFI, and algorithms applied producing data having good agreement with the CFI gait lab data. These patient tests 3 performed this year under approved CFI IRB also demonstrate complete simultaneous functioning of all patient worn MGAS system components, further validating this system concept. Efforts next year will focus on further improvement of system accuracy, reliability, ergonomics, and signal processing, enabling collection of meaningful clinical data. Ultimately, this research will promote much improved prosthetic personalization and use, resulting in improved patient outcomes.
- Anatomy and Physiology
- Medicine and Medical Research