STRENGTH TRAINING REDUCES STRENGTH PERFORMANCES RAPIDLY
Chen, T. C. (1998). The effects of repeated maximal isokinetic eccentric exercise on total work and isometric force. Medicine and Science in Sports and Exercise, 30(5), Supplement abstract 622.
Active males (N = 24) were randomly assigned to a control and exercise group to evaluate the effects of repeated maximal isokinetic voluntary eccentric exercise on total work and maximal isometric force. The exercise was 3 x 10 repetitions of maximal isokinetic effort on the non-dominant arm elbow flexors on a Cybex 6000 at a speed of 60 degrees per second. The exercise group performed the same exercise routine 1, 3, and 6 days after the first assessment. Both groups were tested for maximal isokinetic force prior to, 3, 6, and 9 days of the experiment.
No significant differences were found between the groups for maximal force. Maximal force at the end of each exercise bout decreased 43%, 22%, and 28% on each respective day. Those reductions were positively correlated with reduced work performed (r = .85).
Implication. Intense work of a strength nature rapidly reduces the ability to perform strength-related work. The amount of strength work performed in training before competitions should be limited so that no performance degradation occurs.
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