This study presented a model-based image-matching (MBIM) motion analysis technique for ankle joint kinematic measurement. Five cadaveric below-hip specimens were manipulated through a full range of ankle joint motions in bare-foot and shoed conditions. The ankle motions were analyzed by bone-pin marker-based motion analysis and MBIM motion analysis techniques respectively. The root mean square errors of all angles of motion were less than 3°. The average Intraclass Correlation Coefficients (ICCs) for the intra-rater reliability were greater than 0.928 and the average ICCs for the inter-rater reliability were greater than 0.948 for all angles of motion. Excellent validity, intra-rater reliability and inter-rater reliability were achieved for the MBIM technique in both bare-foot and shoed conditions. The MBIM technique can therefore provide good estimates of ankle joint kinematics.
- Video analysis
- Ankle joint motion
- Injury biomechanics
MOK, K-M., FONG, D. T-P., KROSSHAUG, T., HUNG, A. S-L., YUNG, P. S-H., & CHAN, K-M. (2011). An ankle joint model-based image-matching motion analysis technique. Gait and Posture, 34(1), 71-75. https://doi.org/10.1016/j.gaitpost.2011.03.014