2016, Volume 8, Issue 4

The effect of rest interval length on the repetitions recovery during lower body resistance exercises



Hamid Arazi1, Morteza Sangdevini2, Mohammad Reza Hossein Abadi3, Amin Sohbatzadeh4

1Department of Exercise Physiology, Faculty of Sport Sciences, University of Guilan
2Department of Physical Education and Sport Sciences, University of Golestan
3Department of Physical Education and Sport Sciences, Islamic Azad University Branch of Kalale
4Department of Exercise Physiology, Faculty of Sport Sciences, University of Guilan


Author for correspondence: Hamid Arazi; Department of Exercise Physiology, Faculty of Sport Sciences, University of Guilan ; email: hamidarazi@yahoo.com


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Abstract

Background: The purpose of the current study was to compare the effect of two different rest intervals on the number of repetitions performed in lower body resistance exercises in consecutive sets.

Material/Methods: 12 trained men (age 22.85 ±1.7 yrs; height 175.63 ±4.6 cm; weight 75.54 ±4.8 kg) volunteered to participate in the study. The subjects completed two experimental sessions that consisted of 6 lower body exercises for 3 sets with 8RM (repetition maximum) load. The two experimental sessions differed only in the length of the rest interval between the sets and exercises: one session with 1-minute and the other sessions with a 3-minute rest interval.

Results: Results demonstrated that in the case of the 1-minute rest interval, repetitions in four of six exercises were reduced in the second set compared to the first one, and two of the six exercises in the third set compared to the second one, and all of the exercises in the third set compared to the first one (p < 0.05). However, for the 3-minute rest interval, one of the six exercises were reduced in the second set compared to the first one, and for the third set compared to the second one, and five of the six exercises for the third set compared to the first one (p < 0.05). For all exercises, the total number of repetitions in the 1-minute rest interval was significantly lower than 3-minute rest interval (p < 0.05).

Conclusions: In resistance training comprising all lower body exercises, 1-minute rest periods resulted in decreasing the total number of repetitions compared to 3-minutes periods between sets and exercises.


Key words: strength training, recovery, performance, training volume