@article{ref1,
title="Biomechanical comparison of frontal plane knee joint moment arms during normal and Tai Chi walking",
journal="Journal of physical therapy science",
year="2015",
author="Jagodinsky, Adam and Fox, John and Decoux, Brandi and Weimar, Wendi and Liu, Wei",
volume="27",
number="9",
pages="2959-2961",
abstract="[Purpose] Medial knee osteoarthritis, a degenerative joint disease, affects adults. The external knee adduction moment, a surrogate knee-loading measure, has clinical implications for knee osteoarthritis patients. Tai Chi is a promising intervention for pain alleviation in knee osteoarthritis; however, the characteristics of external knee adduction moment during Tai Chi have not been established. [Subjects and Methods] During normal and Tai Chi walking, a gait analysis was performed to compare the external knee adduction moment moment-arm characteristics and paired t-tests to compare moment-arm magnitudes. [Results] A significant difference was observed in the average lateral direction of moment-arm magnitude during Tai Chi walking (-0.0239 ± 0.011 m) compared to that during normal walking (-0.0057 ± 0.004 m). No significant difference was found between conditions in average medial direction of moment-arm magnitude (normal walking: 0.0143 ± 0.010 m; Tai Chi walking: 0.0098 ± 0.014 m). [Conclusion] Tai Chi walking produced a larger peak lateral moment-arm value than normal walking during the stance phase, whereas Tai Chi walking and normal walking peak medial moment-arm values were similar, suggesting that medial knee joint loading may be avoided during Tai Chi walking.<p /> <p>Language: en</p>",
language="en",
issn="0915-5287",
doi="10.1589/jpts.27.2959",
url="http://dx.doi.org/10.1589/jpts.27.2959"
}