The effect of fatigue on knee position sense is not dependent upon the muscle group fatigued
Article first published online: 12 APR 2011
Copyright © 2011 Wiley Periodicals, Inc.
Muscle & Nerve
Volume 44, Issue 2, pages 217–220, August 2011
How to Cite
Ribeiro, F., Venâncio, J., Quintas, P. and Oliveira, J. (2011), The effect of fatigue on knee position sense is not dependent upon the muscle group fatigued. Muscle Nerve, 44: 217–220. doi: 10.1002/mus.22018
- Issue published online: 13 JUL 2011
- Article first published online: 12 APR 2011
- Accepted manuscript online: 31 JAN 2011 09:40AM EST
- Manuscript Accepted: 26 DEC 2010
- muscle fatigue;
- muscle spindle;
Muscle fatigue could have a greater impact on position sense when antagonists of the movement are fatigued. Hence, this study aimed to compare the effects of antagonist and agonist exercise-induced muscle fatigue on knee joint position sense.
This within-subjects repeated-measures study included 40 subjects. Knee position sense and muscle strength were measured before and after two exercise protocols consisting of 30 consecutive maximal concentric/eccentric contractions of the knee extensors or flexors on the isokinetic dynamometer at an angular velocity of 180°/s (3.14 rad/s).
Both exercise protocols increased the absolute angular error (F1.78 = 39.89, P < 0.001; knee extensors protocol from 2.0 ± 1.3° to 3.5 ± 2.0°, knee flexors protocol from 2.1 ± 1.2° to 3.7 ± 2.2°), and no differences were detected between protocols (F1.78 = 0.034, P = 0.855). No changes were observed in the relative angular error.
Muscle fatigue affects knee position sense, and the deleterious effect is not different depending upon the muscle group fatigued. Muscle Nerve, 2011.