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J Strength Cond Res. 2010 Aug;24(8):2255-60. doi: 10.1519/JSC.0b013e3181aff2ba.

Effects of different strength training methods on postexercise energetic expenditure.

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Exercise Research Laboratory, Physical Education School, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.


Although many studies have demonstrated the efficacy of strength training in increasing energetic expenditure (EE) both during and after training sessions, there are no studies available that analyze the influence on EE of the order in which exercises are performed. Accordingly, the objective of this study was to verify whether the order in which exercises are performed, represented by 2 different methods of strength training (circuit [CT] and pre-exhaustion [PE]), influences the magnitude of the excess postexercise oxygen consumption (EPOC) as well as the EE. Eight nonstrength-trained women participated in the study. Two strength training sessions, with different orders of execution, were held with 7 exercises performed with loads of between 50% and 55% of 1 repetition maximum (1RM). The oxygen uptake was measured before the training sessions, and the difference between the values found was taken as the EPOC of each training session and used in later analysis. No significant differences were found in either the EPOC (CT: 7.19 L +/- 6.17 an. PE: 7.22 +/- 5.84 L) or the postexercise EE (CT: 34.67 +/- 29.76 Kcal, PE: 34.77 +/- 28.15 Kcal) of the 2 training methodologies. Our results indicate that, in strength training, the magnitude of the EPOC is not linked to the order in which the exercises are performed. However, the absence of recovery periods between the sets and the exercises promotes an increase in the magnitude of the EPOC to the levels found in training sessions with higher percentages of 1RM.

[Indexed for MEDLINE]

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