일회성 전신 저항성 운동의 강도 및 운동량에 따른 동맥경직도의 변화

Abstract

The purpose of this study was to compare the acute effects of intensity and volume of whole body resistance exercise on arterial stiffness in healthy adults. Twenty healthy adults randomly performed an acute bout of high intensity and volume resistance exercise (1RM 80%, HIV group) and low intensity and volume resistance exercise (1RM 50%, LIV group). Exercise program consisted of upper body (lat-pull down, bench press, triceps push-down, dumbbell curl) and low body program (leg extension, leg flexion, leg press, squat). Heart rate (HR), brachial and ankle blood pressure (BP), pulse pressure (PP), mean arterial pressure (MAP), brachial-ankle pulse wave velocity (baPWV), ankle brachial index (ABI), as indices of cardiovascular and arterial stiffness were measured for analysis. All variables were measured at pre-exercise, 0, 15 and 30 minutes after each exercise. The collected data were analyzed by two-way repeated ANOVA using a SPSS program. HIV group significantly decreased baPWV (p.05, p.05) at 0 and 15 minutes post exercise, but there were no significant changes to LIV group. HIV group significantly decreased ABI (p.05) at 0 and 15minutes post exercise and LIV group significantly decreased ABI (p.05) immediately post exercise. These findings suggest that high intensity and volume resistance exercise has been shown to reduce blood pressure and arterial stiffness but not low intensity and volume resistance exercise.