Abstract:
:The purpose of this investigation was to assess the effects of stance width and foot rotation angle on three-dimensional knee joint moments during bodyweight squat performance. Twenty-eight participants performed 8 repetitions in 4 conditions differing in stance or foot rotation positions. Knee joint moment waveforms were subjected to principal component analysis. Results indicated that increasing stance width resulted in a larger knee flexion moment magnitude, as well as larger and phase-shifted adduction moment waveforms. The knee's internal rotation moment magnitude was significantly reduced with external foot rotation only under the wide stance condition. Moreover, squat performance with a wide stance and externally rotated feet resulted in a flattening of the internal rotation moment waveform during the middle portion of the movement. However, it is speculated that the differences observed across conditions are not of clinical relevance for young, healthy participants.
journal_name
J Appl Biomechjournal_title
Journal of applied biomechanicsauthors
Almosnino S,Kingston D,Graham RBdoi
10.1123/jab.29.1.33subject
Has Abstractpub_date
2013-02-01 00:00:00pages
33-43issue
1eissn
1065-8483issn
1543-2688journal_volume
29pub_type
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