■这项研究的目的是评估HIIT和SIT计划对身体成分的影响,血压,血脂谱,葡萄糖,心肺健康,和青少年的力量,并比较这些不同方案之间的效果。
■从一所高中招募了60名青少年,随机分为三组。SIT和HIIT进行了为期8周的培训,一周两次,每次12分钟,在他们的体育课上。SIT组进行6组60s工作(90-95%HRmax)/60s休息(50-55%HRmax),和HIIT组进行3组2分钟工作(80-85%HRmax)/2分钟休息(50-55%HRmax)。
■按性别调整后,两个实验组都表现出脂肪质量的显着减少(p<0.01),和躯干脂肪质量(p<0.01),以及瘦体重的显着增加(p=0.01;<0.01),握力(p<0.01)和立定跳远(p=0.05-0.04,分别)。此外,HIIT显示血压显著(p<0.05)改善,舒张压,心率和VO2max,以及低密度脂蛋白显著降低的趋势。
■在高中体育课程中实施HIIT协议,维持8周,以3组2分钟的工作(80-85%RHR)/2分钟的休息(50-55%RHR)的速度产生适应,例如改善健身状况,身体成分的变化,以及改善血液参数和血压。然而,执行SIT的青少年组,更短但更强烈的布景,没有经历那么多的好处。
UNASSIGNED: The aim of this study was to evaluate the effect of HIIT and
SIT programmes on body composition, blood pressure, lipid profile, glucose, cardiorespiratory fitness, and strength of adolescents and to compare the effect between those different protocols.
UNASSIGNED: Sixty adolescents were recruited from a high school and were randomly placed into three groups.
SIT and HIIT undertook a training for 8 weeks, twice a week, for 12 min per session, during their Physical Education lessons.
SIT group performed 6 sets of 60 s of work (90-95%HRmax) / 60 s of rest (50-55%HRmax), and HIIT group performed 3 sets of 2 min of work (80-85%HRmax) / 2 min of rest (50-55%HRmax).
UNASSIGNED: After adjustment by sex, both experimental groups exhibited a significant reduction in fat mass (p < 0.01), and trunk fat mass (p < 0.01), as well as a significant increase in lean mass (p = 0.01; <0.01), hand-grip strength (p < 0.01) and standing long jump (p = 0.05-0.04, respectively). In addition, HIIT showed a significant (p < 0.05) improvement in blood pressure, diastolic blood pressure, heart rate and VO2max, and a tendency toward a significant reduction in low density lipoprotein.
UNASSIGNED: The implementation of a HIIT protocol within high school Physical Education sessions, maintained for 8 weeks, at a rate of 3 sets of 2 min of work (80-85% RHR)/2 min of rest (50-55% RHR) generated adaptations such as improved fitness condition, changes in body composition, and improvements in blood parameters and blood pressure. However, the group of adolescents who performed
SIT, shorter but more intense sets, did not experience as many benefits.