Ana Cristina Lopes y Glória Barreto

EFFECT OF TWO DIFFERENT REST PERIOD LENGTHS ON THE NUMBER OF REPETITIONS PERFORMED DURING RESISTANCE TRAINING

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 ≤ 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 ≤ 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 ≤ 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.

Comparison of Physiological and Perceptual Responses Between Continuous and Intermittent Cycling

Comparison of Physiological and Perceptual Responses Between Continuous and Intermittent Cycling The present study tested the hypothesis that the exercise protocol (continuous vs. intermittent) would affect the physiological response and the perception of effort during aquatic cycling. Each protocol was divided on four stages. Heart rate, arterial blood pressure, blood lactate concentration, central and peripheral rate of perceived exertion were collected in both protocols in aquatic cycling in 10 women (values are mean ± SD): age=32.8 ± 4.8 years; height=1.62 ± 0.05 cm; body mass=61.60 ± 5.19 kg; estimated body fat=27.13 ± 4.92%. Protocols were compared through two way ANOVA with Scheffés post-hoc test and the test of Mann- Whitney for rate of perceived exertion with α=0.05. No systematic and consistent differences in heart rate, arterial blood pressure, double product and blood lactate concentration were found between protocols. On the other hand, central rate of perceived exertion was significantly higher at stage four during continuous protocol compared with intermittent protocol (p=0.01), while the peripheral rate of perceived exertion presented higher values at stages three (p=0.02) and four (p=0.00) in the continuous protocol when compared to the results found in intermittent protocol. These findings suggest that although the aquatic cycling induces similar physiologic demands in both protocols, the rate of perceived exertion may vary according to the continuous vs. intermittent nature of the exercise.

Comparación de efectos de entrenamiento de gimnasia localizada y musculación en los niveles de RML en mujeres no deportistas

Ana Cristina Lopes Y. Gloria Barreto Mestrado em Ciencia da Motricidade Humana/PROCIMH (UCB-RJ) – Brasil; Laboratorio de Biociencias da Motricidade Humana (LABIMH/UCB-RJ) – Brasil. acgbarreto@superig.com.br Rodrigo Gomes de Souza Vale Mestrado em Ciencia da Motricidade Humana/PROCIMH (UCB-RJ) – Brasil; Laboratorio de Biociencias da Motricidade Humana (LABIMH/UCB-RJ) – Brasil, Grupo de Desenvolvimento Latino Americano para a Maturidade (GDLAM – RJ) vale@redelagos.com.br Jefferson da Silva Novaes Mestrado em Ciencia da Motricidade Humana/PROCIMH (UCB-RJ) – Brasil; Laboratorio de Biociencias da Motricidade Humana (LABIMH/UCB-RJ) – Brasil, Universidade Federal do Rio de Janeiro (EEFD-RJ) – Brasil; Bolsista da FUNADESP – SP / Brasil jnovaes@unisys.com.br