レジスタンス運動の実施順序の違いが運動中の生理的応答および運動後過剰酸素消費に及ぼす影響

抄録

This study aimed to examine the physiological responses during exercise and excess post-exercise oxygen consumption (EPOC) under different exercise sequences after orders of upper-body and lower-body resistance exercises. EPOC refers to the body’s continued use of extra oxygen and energy after exercise to return to the pre-exercise state.

Seven male university students participated in this study. Two resistance exercise sequences were performed on separate days: a resistance exercise session in which upper body followed by lower body exercises (U-L), and another session in which lower body followed by upper body exercises (L-U). Expiratory gases and heart rate were monitored continuously throughout the exercise sessions and for 120 minutes of seated rest after the sessions had concluded. The upper body exercises consisted of bench presses and lat pulldowns, while the lower body exercises included deadlifts and squats. For each exercise, participants performed 3 sets of 10 repetitions at 70% of their maximum lifting weight, with a 2-minute rest between sets.

Physiological responses during resistance exercise varied between sessions and exercises depending on the characteristics of the primary muscles involved. However, no significant differences were observed between the exercise sequence in terms of total oxygen consumption or energy expenditure during the sessions. The duration of EPOC was 115 minutes for the U-L condition and 110 minutes for the L-U condition, but no significant differences in the total amount of EPOC were found between the two exercise sequences,

In this study, it is considered that differences in exercise sequence have a minimal impact on energy expenditure during exercise and excess post-exercise oxygen consumption (EPOC), when combining several resistance exercises involving large muscle groups and multi-joint muscles at the same exercise intensity and volume.