Abstract:
:This study aimed to develop insight into the lower extremity joint coupling motions used in the maximal velocity phase of sprint running. Two-dimensional coordinate data were used to derive sagittal plane joint angle profiles of sprint running trials. Intralimb joint coupling motions were examined using a continuous relative phase (CRP) analysis. The knee-ankle (KA) coupling was more out of phase compared with the hip-knee (HK) coupling across the step phase (mean CRP: KA 89.9 degrees; HK 34.2 degrees) and produced a lower within-athlete CRP variability (VCRP) in stance. Touchdown (TD) produced more out-of-phase motions and a larger VCRP than toe-off. A destabilization of the lower extremity coordination pattern was considered necessary at TD to allow for the swing-to-stance transition. The key role that the KA joint motion has in the movement patterns used by healthy athletes in the maximal velocity phase of sprint running was highlighted.
journal_name
J Appl Biomechjournal_title
Journal of applied biomechanicsauthors
Gittoes MJ,Wilson Cdoi
10.1123/jab.26.2.188subject
Has Abstractpub_date
2010-05-01 00:00:00pages
188-95issue
2eissn
1065-8483issn
1543-2688journal_volume
26pub_type
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