Authors: Machado, Marco; Willardson, Jeffrey M.; Silva, Dailson P.; Frigulha, Italo C.; Koch, Alexander J.; Souza, Sergio C.

Source: Research Quarterly for Exercise and Sport, Volume 83, Number 2, June 2012 , pp. 276-281(6)

Publisher: American Alliance for Health, Physical Education, Recreation & Dance

Abstract:

In the current study, we examined the relationship between serum creatine kinase (CK) activity following upper body resistance exercise with a 1- or 3-min rest between sets. Twenty men performed two sessions, each consisting of four sets with a 10-repetition maximum load. The results demonstrated significantly greater volume for the 3-min condition (M = 4,156 kg, SD = 867, for 3 min; vs. M = 3,503 kg, SD = 759, for 1 min; p < .001), with no significant differences in delta CK activity between conditions (p = .574). Nevertheless, there was a weak correlation between the delta CK activity and total volume of exercise completed (r = .55 with a 1-min rest, and r =.45 with a 3-min rest). Therefore, the volume following upper body resistance exercise correlates weakly with serum CK levels, irrespective of rest interval length between sets.

Keywords: EXERCISE VOLUME; MUSCLE ENDURANCE; REST INTERVAL; WEIGHT TRAINING

Document Type: Research article

DOI: http://dx.doi.org/10.5641/027013612800745310

Publication date: 2012-06-01

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