Summary
Muscle soreness, serum creatine kinase (CK), and serum and urinary hydroxyproline levels were examined following muscle over-exertion and resistance training. Seven untrained men performed high intensity leg-extension exercises at a resistance at which they could initially accomplish 90% of their 10 repetitions maximum (10 RM), for 30 minutes to induce muscle over-exertion. In Phase 1 a single bout of muscular over-exertion was followed by a week of rest. Phase 2, the training period, was a repeat of the over-exertion workload of Phase 1 for five consecutive days. Phase 3 was a single bout of over-exertion at a higher 10 RM workload. Normo-responsive and hyper-responsive changes in serum CK were exhibited by different subjects in Phase 1. Muscle soreness was perceived by both groups but to a greater extent in the hyper-responsive group. Serum CK and muscle soreness values were lower during Phase 2 and 3 than in Phase 1. Neither serum nor urinary hydroxyproline levels changed significantly post-exercise. These findings show that a single bout of intense exercise and a brief period of muscular training reduces serum CK and muscle soreness responses following a subsequent single bout of exercise at a higher intensity.
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Seaman, R., Ianuzzo, C.D. Benefits of short-term muscular training in reducing the effects of muscular over-exertion. Europ. J. Appl. Physiol. 58, 257–261 (1988). https://doi.org/10.1007/BF00417259
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DOI: https://doi.org/10.1007/BF00417259