Rest-Interval Length Affects Leukocyte Levels During Heavy Resistance Exercise

• Autores: David L. Mayhew, John P. Thyfault, Alexander J. Koch
• Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 19, Nº. 1, 2005, págs. 16-22
• Idioma: inglés
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• Dialnet Métricas: 3 Citas
• Resumen

  • We sought to determine the effect of varying rest intervals on leukocyte levels during heavy resistance exercise. Nine college men completed 2 exercise bouts of 10 sets of 10 repetitions at 65% 1 repetition maximum (1RM) leg press with 1- (1MIN) or 3-minute (3MIN) rest intervals, respectively. Blood collected at rest (PRE), immediately postexercise (POST), and 1.5 hours postexercise (1.5H) was analyzed for leukocyte levels. Data were analyzed using a 2 X 3 repeated measures analysis of variance. A greater PRE-POST lymphocytosis (183% vs. 116%, p = 0.002) and monocytosis (147% vs. 115%, p = 0.005) was observed following 1MIN vs. 3MIN. Serum creatine kinase (CK) activity was increased to a greater extent 24 h postexercise following the 1- minute rest protocol (p = 0.022). CK was correlated (r = 0.611) to the PRE-POST lymphocytosis. We conclude that short rest intervals increase the extent of postexercise lymphocytosis and monocytosis, when total work is kept constant.