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JOURNAL
OF
SPORTS SCIENCE &
MEDICINE
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Research
article
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ISOMETRIC GLUTEUS MEDIUS MUSCLE TORQUE AND FRONTAL PLANE PELVIC MOTION DURING RUNNING |
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Evie N. Burnet 
and Peter E. Pidcoe |
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Department of Physical Therapy, Virginia Commonwealth University, Richmond, VA, USA |
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© Journal of Sports Science and Medicine (2009) 8, 284 - 288 Search Google Scholar for Citing Articles |
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| ABSTRACT | |||
| The objective of this study was to investigate the relationship
between isometric GM torque and the degree of frontal plane pelvic drop
during running. Twenty-one healthy, recreational runners (9 males, 12 females)
who ran 8.05 km or more per week were obtained from a sample of convenience.
GM maximal isometric torque was collected prior to the run. Subjects then
ran on a treadmill for 30 minutes while bilateral three-dimensional pelvic
kinematic data were collected for 10 seconds at each 2 minute increment.
Left side pelvic drop showed a slight increase (effect size = 0.61); while,
the right side pelvic drop remained stable (effect size = 0.18). Pearson's
Correlations showed no relationship between GM isometric torque and frontal
plane pelvic drop for any of the data collection periods during the 30-minute
run. These results suggest that isometric GM torque was a poor predictor
of frontal plane pelvic drop. One should question whether a dynamic rather
than static measure of GM strength would be more appropriate. Future research
is needed to identify dynamic strength measures that would better predict
biomechanical components of running gait.
Key words: Strength, kinematics, Trendelenburg, hip. |
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