Ambulatory Assessment of Foot Kinematics and Kinetics: Outcome Evaluation of Ankle Osteoarthritis Treatments
- Contact person: Kamiar Aminian
- People involved: Hossein Rouhani
- Partners: CHUV – DAL
- Funding source:
Ambulatory Assessment of Foot Kinematics and Kinetics
New algorithms were introduced to estimate rotation of foot joints, 3D ground reaction force and kinetics of foot joints (force, moment and power) using ambulatory systems. First, kinematics of multi-segment foot was assessed, based on body-fixed inertial sensors (3D gyroscope ad 3D accelerometer) on shank, hindfoot, forefoot and toes. Second, plantar pressure insole, as an available ambulatory system in clinics, was used for assessing 3D ground reaction force. An optimal algorithm was proposed for estimating the 3D ground reaction force based on plantar pressure distribution. Third, inertial sensors and pressure insole were used for ambulatory assessment of multi-segment foot joints kinetics. These designed systems were validated with gold standard reference systems. As an advantage, they can be easily used in different clinical environments for long-distance field measurement without perturbing the natural gait.
Figure 3. Ambulatory assessment of foot knematics and kinetics