title: Effect of two different rest period lengths on the number of repetitions performed during resistance training.
abstract: The purpose of this study was to compare the effects of 2 different rest period lengths during a resistance training session with the number of repetitions completed per set of each exercise, the volume completed over 3 sets of each exercise, and the total volume during a training session. Fourteen experienced, weight-trained men volunteered to participate in the study. All subjects completed 2 experimental training sessions. Both sessions consisted of 3 sets of 8 repetitions with an 8 repetition maximum resistance of 6 upper body exercises performed in a set manner (wide grip lat pull-down, close grip pull-down, machine seated row, barbell row lying on a bench, dumbbell seated arm curl, and machine seated arm curl). The 2 experimental sessions differed only in the length of the rest period between sets and exercises: 1 session with a 1-minute and the other with a 3-minute rest period. For all exercises, results demonstrate a significantly lower total number of repetitions for all 3 sets of an exercise when 1-minute rest periods were used (p < or = 0.05). The 3- and 1-minute protocols both resulted in a significant decrease from set 1 to set 3 in 4 of the 6 exercises (p < or = 0.05), whereas the 1-minute protocol also demonstrated a significant decrease from set 1 to set 2 in 2 of the 6 exercises (p < or = 0.05). The results indicate that, during a resistance training session composed of all upper body exercises, 1-minute rest periods result in a decrease in the total number of repetitions performed compared with 3-minute rest periods between sets and exercises.
authors: Castelo Branco University, Physical Education Post-Graduation Program in Human Science Motricity-PROCIMH-LABIMH, Rio de Janeiro, Brazil.
authors: Humberto
authors: H
authors: Miranda
authors: Steven J
authors: SJ
authors: Fleck
authors: Roberto
authors: R
authors: Simão
authors: Ana Cristina
authors: AC
authors: Barreto
authors: Estélio H M
authors: EH
authors: Dantas
authors: Jefferson
authors: J
authors: Novaes
mesh_terms: D000328:Adult; D015444:Exercise / Q000502:physiology; D006801:Humans; D008297:Male; D010806:Physical Education and Training / Q000379:methods; D010807:Physical Endurance / Q000502:physiology*; D012146:Rest / Q000502:physiology*; D013997:Time Factors; D014891:Weight Lifting / Q000502:physiology*