Isokinetic knee extensor strength and functional performance in healthy female soccer players
Version of Record online: 3 FEB 2011
Scandinavian Journal of Medicine & Science in Sports
Volume 8, Issue 5, pages 257–264, October 1998
How to Cite
östenberg, A., Roos, E., Ekdah, C. and Roos, H. (1998), Isokinetic knee extensor strength and functional performance in healthy female soccer players. Scandinavian Journal of Medicine & Science in Sports, 8: 257–264. doi: 10.1111/j.1600-0838.1998.tb00480.x
- Issue online: 6 MAR 2007
- Version of Record online: 3 FEB 2011
- Accepted for publication 1 July 1998
- isokinetic strength;
- functional performance tests;
- normative data;
- female soccer
östenberg A, Roos E, Ekdahl C, Roos H. Isokinetic knee extensor strength and functional performance in healthy female soccer players.
The aims of this study were to determine the relationship between isokinetic knee extensor muscle strength at 60°/s and 180°/s and five functional performance tests (one-leg-hop, triple-jump, vertical-jump, one-leg-rising and square-hop), to determine the relationship between the five different functional performance tests and to present normative data and limb symmetry index concerning healthy female soccer players. In total 101 female soccer players ([Text Missing]X=20.3 years) were tested. A limb symmetry index, using weak/strong leg, varied from 83.9 to 96.3 in the tests. Between the functional performance tests there were in general correlations of r=0.4-0.8 (P<0.001). A correlation of r=0.77 (P<0.001) was obtained between one-leg-hop and triple-jump. No differences were found between the right and the left leg or the dominant and the non-dominant leg. Using linear regression models corrected for body weight, height and age, there were low correlations between the isokinetic strength measurements and the functional tests. It is not recommended using functional performance testing and isokinetic testing interchangeably.