摘要
探讨60%THR运动强度下不同运动密度对青少年运动能耗与体质健康的影响。方法:将146名健康小学生随机分成低、中、高运动密度组和对照组,分别采用Polar Team OH1和Actigraph wGT3X-BT监测运动强度和运动能耗。结果:运动能耗建模后,时段以及时段与组别交互作用无统计学意义,运动能耗与组别交互作用有统计学意义;体质健康建模后,BMI变化、往返跑、50 m跑和坐位体前屈进步幅度组别主效应以及肺活量、跳绳进步幅度"组别×性别"的交互效应均有统计学意义,仰卧起坐组别主效应和"组别×性别"交互效应均无统计学意义。结论:60%THR运动强度、36%～74%运动密度的运动负荷是维持身体基本运动能力的最小阈值,55%～74%的运动密度是引起BMI下降的最小阈值并适宜发展女生跳绳能力,75%以上运动密度是健康促进效应和提高运动能力的价值阈。
This study aims to investigate the effects of different exercise time(ET)on energy consumption and physical fitness of adolescents at 60%THR exercise intensity.Method:146 healthy pupils were divided into low(LET),middle(MET),and high(HET)ET groups,along with a control group(CET).The exercise intensity and energy consumption of these groups were respectively assessed using Polar Team OH1 and ActiGraph wGT3X-BT triaxial accelerometers.Results:After modeling energy consumption patterns with these four ET groups,this study concludes that there were no statistically significant main effect of periods or interaction effect of“periods×group”.The interaction effect of“energy consumption×group”,however,did prove to be statistically significant.The main effect,in BMI changes,as well as improvement in the shuttle run,the 50 meter dash,and the sit and reach test,was statistically significant.Lastly,the interaction effect of“gender×group”on the improvement of lung capacity and rope skipping ability was statistically significant.There were no statistically significant differences in“group×gender”or groups or gender in sit-up test performance.Conclusions:The combination of 60%THR exercise intensity and 36%74%ET is the minimum threshold for maintaining basic bodily fitness for adolescents;and 55%74%ET is the minimum threshold for BMI decline and skipping rope improvement(however,this does not apply to males)among females;75%ET is the minimum necessary to promote bodily fitness and the overall improvement of exercise capacity.
作者
蔡瑞金
季浏
尹杰
杨晓玲
薛小安
CAI Ruijin;JI Liu;YIN Jie;YANG Xiaoling;XUE Xiaoan(School of Physical Education and Health,East China Normal University,Shanghai 200241,China;Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education,East China Normal University,Shanghai 200241,China;Teaching Affair Office,Shanghai No.6 Central Primary School,Hongkou District,Shanghai 200083,China;Department of Physical Education,Chongqing JiaoTong University,Chongqing 400074,China;Department of Physical Education,Shanghai Yan’an High School,Shanghai 200336,China)
出处
《上海体育学院学报》
CSSCI
北大核心
2019年第1期93-102,共10页
Journal of Shanghai University of Sport
基金
青少年体育教育研究上海市社会科学创新研究基地项目(11001-412321-17006)
关键词
青少年
运动密度
运动强度
能耗
体质健康
学校体育
adolescents
exercise time
exercise intensity
energy consumption
physical fitness
school sport
作者简介
第一作者:蔡瑞金(1978-),女,山东菏泽人,华东师范大学博士研究生;Tel:(021)54342612,E-mail:cairj@sdju.edu.cn;通信作者:季浏(1961-),男,江苏泰兴人,华东师范大学教授,博士,博士生导师;Tel:(021)54342612,E-mail:lji@tyxx.ecnu.edu.cn
