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Comparison of isokinetic Strength and Flexibility Measures Between Hamstring Injured and Noninjured Athletes

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
David H. Perrin, Provost and Executive Vice Chancellor (Creator)
Institution
The University of North Carolina at Greensboro (UNCG )
Web Site: http://library.uncg.edu/

Abstract: The purpose of this study was to compare isokinetic strength and flexibility measures between hamstring injured and noninjured athletes. Sixteen university athletes with history of hamstring injury were matched by motor dominance, sport, and position to sixteen university athletes without history of hamstring injury. Each subject was tested for concentric and eccentric quadriceps and hamstring peak torque and reciprocal muscle group ratios on a Kinetic Communicator® (KIN-COM) dynamometer at 60° /sec and 180°/sec. Each subject's hamstring flexibility was determined by passively extending the knee while the hip was maintained at 90° of flexion. Analysis of variance indicated that the injured extremity was significantly less flexible than the noninjured extremity within the hamstring injured group, and the hamstring injured group was less flexible than the noninjured group. No significant strength differences existed between the hamstring injured and noninjured group on any isokinetic measure evaluated. The importance of assessing hamstring flexibility is emphasized.

Additional Information

Publication
Journal of Orthopedic and Sports Physical Therapy, 13, 118-125
Language: English
Date: 1991
Keywords
hamstring injury, isokinetic strength, isokinetic flexibility, quadriceps, dynamometer