3636 加速度・角速度センサーを用いた歩行解析(J24-2 ライフサポート(2),ジョイントセッション,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

論文の詳細を見る
This work proposes a method that can measure the three-dimensional positions of joint centers for hip, knee and ankle using wearable acceleration and gyro sensors. Healthy volunteers wore small sensor unit that included a tri-axis acceleration sensor and three single axis gyro sensors. Acceleration data from acceleration sensors and angular velocity data from gyro sensors to were used to estimate joint angles of the hip and knee. The joint angles along with the volunteers' body measurements were used to calculate positions of hip, knee and ankle joint. Flexion-extension angle and internal-external rotation joint angle of hip and the flexion joint angle of knee were calculated using this method was compared with that of a reference motion capture system. Correlation coefficients were 0.888 for the flexion-extension joint angle of hip, 0.721 for the internal-external rotation joint angle of hip, and 0.924 for the flexion joint angle of knee. From these results this method can accurately measure gait.
2008-08-02