视力障碍青少年身体活动水平和久坐时间调查  

Accelerometer-assessed physical activity and sedentary time in Chinese adolescents with visual impairments

作　　者：徐文红 王丽娟 XU Wenhong;WANG Lijuan(School of Physical Education and Sport Training,Shanghai University of Sport,Shanghai 200438,China)

机构地区：[1]上海体育学院体育教育训练学院,上海200438

出　　处：《中国学校卫生》2020年第2期190-193,共4页Chinese Journal of School Health

基　　金：国家社会科学基金项目(17BTY080)。

摘　　要：目的了解中国视力障碍青少年日常身体活动模式和久坐行为时间,为指导学生科学合理安排作息时间提供参考。方法采用加速度计对中国西部地区某特殊教育学校78名7~23岁视力障碍青少年的身体活动水平和模式进行测量。结果男女生相比,男生身高略高、身体略重(t值分别为2.81,2.46,P值均<0.05)。基于Puyan等加速度计切点值,学生平均每天进行轻度身体活动(light physical activity,LPA)时间为(285.18±47.29) min,中等强度身体活动(moderate physical activity,MPA)时间为(141.92±57.63) min,高强度身体活动(vigorous PA,VPA)时间为(17.66±14.83) min,中高强度身体活动(moderate-to-vigorous-intensity physical activity,MVPA)时间为(159.58±69.83) min,久坐时间为(988.38±110.18)min。98.7%的受试者达到了WHO关于青少年每天应至少进行60 min中等及以上强度的身体活动的推荐量。结论中国西部地区特殊学校视障青少年每日进行促进身体健康的身体活动,身体活动水平达到且超过WHO身体活动推荐量。Objective The purpose of this study is to examine the moderate-to-vigorous-intensity physical activity( MVPA and sedentary time among Chinese youth with visual impairments. Methods A total of 78 Chinese youth with visual impairments( 7 to 23 years) were recruited from a special school for deef and dumb. Acti Graph GT3 X accelerometers were used to measure the MVPA and sedentary time. Results Youth with visual impairments in this study spent an average of( 285.18±47.29) minutes of light PA,( 141.92±57.63) minutes of moderate PA,( 17.66±14.83) minutes of vigorous PA,( 159.58±69.83) minutes of moderate-to-vigorous-intensity PA and( 988.83±110.18) minutes of sedentary time per day. 98.7% of participants met the WHO physical activity guideline on at least 60 minutes MVPA per day. Conclusion Findings demonstrated that Chinese youth with visual impairments in this study had sufficient health-enhancing PA and were habitually active. Future research is needed to identify the factors that account for the high habitual PA levels of Chinese youth with visual impairments.

关 键 词：视力 低 运动活动 闲暇活动 人体质量指数 青少年 

分 类 号：R179[医药卫生—妇幼卫生保健] G761[医药卫生—公共卫生与预防医学]