摘要
目的 了解不同高海拔地区藏族中学生心肺耐力状况及其与体质量指数(BMI)之间的关联,为藏族中学生心肺耐力的提高和干预提供参考。方法 采用分层整群抽样方法,于2019年10—11月在西藏的林芝、拉萨、那曲地区(平均海拔分别为3 000,3 600,4 100 m)对3 819名藏族中学生进行男生1 000 m、女生800 m跑测试,同时测量身高和体重后计算BMI,采用χ^(2)检验比较消瘦、正常、超重肥胖分布情况,采用多元线性逐步回归分析BMI与心肺耐力的关系。结果 高海拔地区藏族中学生13~15、17~18岁年龄段男生在林芝、拉萨、那曲地区VO_(2max)差异均有统计学意义(F值分别为26.72,13.75,23.86,8.68,9.35,P值均<0.01);13~14、16~18岁女生在3个地区VO_(2max)比较差异均有统计学意义(F值分别为5.29,4.36,11.38,7.79,16.30,P值均<0.01)。男生那曲地区消瘦的比例(17.5%)高于林芝地区(10.2%)和拉萨地区(8.7%),差异有统计学意义(χ^(2)=25.91,P<0.01);女生那曲地区消瘦的比例(5.1%)高于林芝地区(2.6%)和拉萨地区(2.5%),差异有统计学意义(χ^(2)=8.35,P<0.05)。多元线性逐步回归分析显示,纳入BMI和海拔高度后,模型△R^(2)为0.075,藏族中学生超重肥胖与最大摄氧量呈正相关(B=0.44,95%CI=0.39~0.49);消瘦与最大摄氧量呈负相关(B=-0.36,95%CI=-0.42~-0.29);海拔高度[拉萨:B值(95%CI)=-0.44(-0.49~-0.39),那曲:B值(95%CI)=-0.51(-0.56~-0.45)]与最大摄氧量呈负相关(P值均<0.01)。结论 高海拔地区藏族中学生超重肥胖与最大摄氧量呈正相关,消瘦和海拔高度与最大摄氧量呈负相关。
Objective To understand the cardiopulmonary endurance status of Tibetan middle school students in different high altitude areas and the relationship with body mass index(BMI), and to provide reference for cardiopulmonary endurance improvement among students in different high altitude areas. Methods From October to November 2019, 3 819 Tibetan middle school students in Linzhi, Lhasa, and Nagqu Regions of Tibet were tested with the 1 000-meter run for boys and 800-meter run for girls, and BMI was calculated. The cardiorespiratory endurance of middle school students in different high altitude areas was compared, the detection rate of wasting, normal, overweight and obesity was compared with the χ^(2) test, and the relationship between body mass index and cardiorespiratory endurance was analyzed by multiple linear stepwise regression. Results The differences in VO_(2max) between Tibetan middle school students aged 13-15 and 17-18 years in Nyingchi, Lhasa and Nagqu were statistically significant(F=26.72, 13.75, 23.86, 8.68, 9.35, P<0.01), and 13-14, 16-18 years old girls in three regions with VO_(2max)(F=5.29, 4.36, 11.38, 7.79, 16.30,P<0.01). The proportion of boys wasting in Linzhi area was 10.2%, that of Lhasa area was 8.7%, and that of Nagqu area was 17.5%, the difference was statistically significant(χ^(2)=25.91, P<0.01);the proportion of girls wasting, Linzhi, Lhasa, and Nagqu were 2.6%, 2.5%, 5.1%, the difference was also statistically significant(χ^(2)=8.35, P<0.05). Multiple linear stepwise regression analysis showed that after body mass index and altitude included, the model △R^(2)=0.075, and Tibetan middle school students were overweight and obese(B=0.44, 95%CI=0.39-0.49) and positively correlated with VO_(2max)(P<0.01);weight loss(B=-0.36, 95%CI=-0.42--0.29) was negatively correlated with VO;(P<0.01);altitude [Lhasa Area: B(95%CI)=-0.44(-0.49--0.39),Nagqu Region: B(95%CI)=-0.51(-0.56--0.45)] was negatively correlated with VO_(2max)(P<0.01). ConclusionOverweight and obesity are positively correlated wi
作者
张春超
庞威
张斐
扎西郎措
ZHANG Chunchao;PANG Wei;ZHANG Fei;TASHI Langcuo(School of Physical Education,Nanyang Normal University,Nanyang(473061),Henan Province,China;不详)
出处
《中国学校卫生》
CAS
北大核心
2022年第6期901-905,共5页
Chinese Journal of School Health
关键词
心脏
肺
身体耐力
人体质量指数
学生
少数民族
回归分析
Heart
Lung
Physical endurance
Body mass index
Students
Minority groups
Regression analysis
