加速度センサとジャイロを用いた連続歩行分析アルゴリズム

概要

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This paper describes an alternative method for the assessment of locomotion, based on the combination of the advanced wearable instruments and a simple kinematic model. The advantage of the method is that it does not require special laboratory equipments and can be used for field studies with a completely body-mounted recording system. Multiaxis accelerometers and gyroscopes were attached to each segment of lower extremities. The process included detection of temporal parameters of locomotion, calculation of joint angles, and estimation of the ground reaction force in the sagittal plane. In addition, inter segmental joint moments and powers were calculated by inverse dynamical analysis. Finally we obtained an index of energy expenditure. Validation of the method was evaluated in comparison with a conventional gait analysis system such as video-based motion analysis system and force plate. Initial results show that it is possible to use this method for the long-term assessment of locomotion during normal level walking.
一般社団法人日本機械学会の論文
2001-03-25