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. Author manuscript; available in PMC: 2022 Feb 1.
Published in final edited form as: IEEE Trans Biomed Eng. 2022 Jan 21;69(2):678–688. doi: 10.1109/TBME.2021.3103201

TABLE II.

Error and correlation between imu and motion capture lower-limb kinematics

Joint Walking RMSE (Deg) Mean±Std Walking Pearson Correlation Coefficient Running RMSE (Deg) Mean±Std Running Pearson Correlation Coefficient
Hip Flexion 4.5±2.3 0.995 8.4±5.9 0.999
Hip Adduction 4.8±1.2 0.981 3.4±3.2 0.964
Hip Rotation 5.2±2.2 0.758 4.1±3.8 0.782
Knee Flexion 4.3±0.7 0.997 7.1±5.4 0.994
Ankle Dorsiflexion 3.9±1.3 0.957 7.2±6.1 0.979