Number of repetition maximum and oxygen consumption at relative intensities of 1RM during free weight exercises in general male college students using barbell for bench press and squat

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  • 一般男子学生におけるフリーウエイト運動の% １RM での最高反復回数と酸素消費量 ～バーベルを用いたベンチプレス及びスクワットにおいて～

Abstract

Recently, weight training has become popular among the general populace as a means ofdeveloping a health and physical fitness. However, there are many obscure points relating to thenumber of repetition maximum and oxygen consumption in the free weight exercises. This studyfocuses on general male college students (n=26) and measures the number of repetition maximum at60, 70, 80, and 90% 1RM in bench press and squat using barbells. It also measures oxygenconsumption when students (n=15) were asked to do 10 repetitions at 70% 1RM. For bench press,numbers of repetition maximum were 20.6±3.8, 15.0±2.9, 10.2±2.1, and 5.1±1.7 reps, respectively.For squat, numbers of repetition maximum tended to be high, at 24.1±6.5 (p<0.01), 17.5±3.7 (p<0.05),11.2±3.4, and 5.2±2.0 reps, respectively. Oxygen requirements for bench press and squat wererespectively 2,276±614 ml (34.5±9.9 ml/kg) and 4,579±911 ml (69.0±13.8 ml/kg), while METs(metabolic equivalents) were respectively 19.9±6.3 and 37.9±10.1. From these results, it is clear thatamong general college students using free weights, the number of repetition maximum for squattended to be even greater than one for bench press, and the oxygen consumption volume wasapproximately twice as high for squat as for bench press.

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