Assessment of Muscle Stiffness, Electromechanical Delay, and Muscle Extensibility over the Course of the Menstrual Cycle Public Deposited
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- Last Modified
- March 20, 2019
- Affiliation: College of Arts and Sciences, Department of Exercise and Sport Science
- Anterior cruciate ligament injuries are more common in females than in males. Research has failed to isolate a cause for this bias. Hormones have been implicated in increased injury rates, increased ligamentous laxity, decreased stiffness, and increased electro-mechanical delay. We compared active and passive muscle stiffness, electromechanical delay, and extensibility of the knee flexor group between menses and ovulation in eumenorrheic women. No significant differences in active and passive muscle stiffness, electromechanical delay, or extensibility of the knee flexor group were measured between menses and ovulation. Menstrual cycle phase may not have an effect on active and passive muscle stiffness, electromechanical delay, or extensibility. Therefore, increased anterior cruciate ligament injury rates in females may not be caused by hormonal changes in muscle stiffness.
- Date of publication
- August 2007
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- Padua, Darin A.
- Open access
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|Assessment of muscle stiffness, electromechanical delay, and muscle extensibility over the course of the menstrual cycle||2019-04-08||Public||