Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
from September 2014
©Journal of Sports Science and Medicine (2009) 08, 284 - 288

Research article
Isometric Gluteus Medius Muscle Torque and Frontal Plane Pelvic Motion During Running
Evie N. Burnet , Peter E. Pidcoe
Author Information
Virginia Commonwealth University, Richmond, VA, USA

Evie N. Burnet
✉ 1 Department of Physical Therapy, Virginia Commonwealth University, PO Box 980224, Richmond, VA 23298, USA
Publish Date
Received: 15-12-2008
Accepted: 13-04-2009
Published (online): 01-06-2009
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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.

           Key Points
  • There is a lack of research linking static, clinical measures to dynamic running gait observations.
  • Isometric gluteus medius muscle torque is a poor predictor of frontal plane pelvic drop in running.
  • Future studies should identify dynamic strength measures that correlate with elements of running biomechanics.
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