© 2002 British Journal of Sports Medicine
ORIGINAL ARTICLE
Effect of warming up on knee proprioception before sporting activity
Northwick Park Hospital, Watford Road, Harrow, Middlesex HA1 3UJ, UK
Correspondence to:
Correspondence to:
Mr Bartlett, Northwick Park Hospital, Watford Road, Harrow, Middlesex HA1 3UJ, UK;
mjbartle{at}freenetname.co.uk
Background: It is now generally accepted that the ligamentous structures of the knee not only act as mechanical restraints but also have a neurophysiological role in joint function and protection. A report that knee joint laxity increases with exercise raised the question as to whether there is any compensatory change in joint position appreciation.
Objective: To test whether there is a compensatory mechanism for increased ligamentous laxity during normal levels of activity.
Methods: Joint position appreciation was measured, using a previously reported technique, in the knees of sportsmen at rest and after warm up.
Results: Joint position appreciation was found to be significantly more sensitive after warm up (p = 0.005).
Conclusions: These findings indicate that joint position appreciation within the knee accommodates physiological changes within the ligaments and muscles after exercise.
Keywords: knee; muscles; ligaments; proprioception
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