Strength relationship of the knee musculature: Effects of gravity and sport

L. Appen, P. W. Duncan

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


The purpose of this study were to examine the effects of gravity and sport on the hamstrings-quadriceps strength relationships. The peak torques at four speeds of isokinetic exercise (60, 180, 240, 300°/sec) were determined for 20 male college track athletes, including 10 sprinters and 10 distance runners. The runners were tested on a Cybex® II isokinetic dynamometer. Peak torque measurements were corrected for the effects of gravity. Results of the present study showed that: 1) the effects of gravity significantly alters the hamstrings to quadriceps ratio at all velocities, and 2) there is no statistically significant difference in the hamstrings-quadriceps strength ratios between the two groups of athletes except at 300°/sec. At that speed, sprinters had a higher ratio than distance runners.

Original languageEnglish
Pages (from-to)232-235
Number of pages4
JournalJournal of Orthopaedic and Sports Physical Therapy
Issue number5
Publication statusPublished - 1986
Externally publishedYes


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