Accurately locating the hip joint center is a challenging and important step in many biomechanical investigations. The purpose of this study was to test the accuracy and robustness of a "pivoting" algorithm used to locate the hip center. We tested the performance of this algorithm with data acquired by manipulating a ball and socket model of the hip through several motion patterns. The smallest mean errors of 2.2±0.2 mm occurred with a circumduction motion pattern, while the largest errors of 4.2±1.3 mm occurred with single-plane motion (e.g., flexion/extension). Introducing random noise with an amplitude of 30 mm increased the errors by only 1.3±0.5 mm with a circumduction motion pattern. The pivoting algorithm performs well in the laboratory, and further work is warranted to evaluate its performance in a clinical setting. © 2004 Elsevier Ltd. All rights reserved.
CITATION STYLE
Siston, R. A., & Delp, S. L. (2006). Evaluation of a new algorithm to determine the hip joint center. Journal of Biomechanics, 39(1), 125–130. https://doi.org/10.1016/j.jbiomech.2004.10.032
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