Association between physical activity and cardiopulmonary endurance of Chinese children and adolescents
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摘要:
目的 了解中国儿童青少年体力活动状况及其与心肺耐力的关系, 为提高中国儿童青少年心肺耐力水平提供参考和借鉴。 方法 在2018年9—11月采用分层整群抽样的方法, 在中国六大行政区抽取7~18岁的4 269名儿童青少年进行基本情况、20 m往返跑测试及体力活动状况的测试和调查。 结果 男生每天低强度体力活动时间为(31.49±30.01)min, 中高强度体力活动时间为(68.37±46.50)min; 女生低强度体力活动时间为(34.02±31.58)min, 中高强度体力活动时间为(63.02±44.91)min。7~18岁男生20 m往返跑次数为(36.17±21.94)次, 每分钟最大摄氧量为(44.51±5.05)mL/kg; 女生20 m往返跑次数为(26.59±12.56)次, 每分钟最大摄氧量为(41.99±5.29)mL/kg。男生各年龄段20 m往返跑次数和最大摄氧量的比较差异有统计学意义(F值分别为589.37, 152.79, P值均<0.01);女生间差异也均有统计学意义(F值分别为305.21, 1 032.46, P值均<0.01)。中高强度体力活动时间男生达标者比例为49.24%, 女生为42.92%。线性回归分析显示, 中高强度体力活动时间与最大摄氧量呈正相关(β=0.11, P<0.01)。 结论 中国儿童青少年中高强度体力活动时间与心肺耐力呈现相关性, 可通过提高儿童青少年的中高强度体力活动以达到提高心肺耐力的目的。 Abstract:Objective To understand physical activity status and its relation with cardiopulmonary endurance among Chinese children and adolescents, so as to provide reference for cardiopulmonary endurance improvement and intervention of Chinese children and adolescents. Methods During September to November 2018, a stratified cluster sampling method was used to select 4 269 children and adolescents aged 7-18 years in six major regions of China, 20 m shuttle run test and physical activity were assessed. Results Average duration for daily low-intensity physical activity among boys was (31.49±30.01) min, for moderate-to-vigorous physical activity (68.37±46.50) min. Average duration for low-intensity physical activity among girls was (34.02±31.58) min, for moderate-to-vigorous physical activity was (63.02±44.91) min. The number of 20 m shuttle run test for boys reached (36.17±21.94) times, and the maximal oxygen uptake per minute was (44.51±5.05) mL/kg; the number of 20 m shuttle run test for girls reached (26.59±12.56) times, and the maximal oxygen uptake per minute was (41.99±5.29) mL/kg. There were statistically significant differences in the number of 20 m shuttle run test and maximal oxygen uptake across age groups in boys (F=589.37, 152.79, P < 0.01), as well as that in girls (F=305.21, 1 032.46, P < 0.01). The proportion of boys and girls who met moderate-to-vigorous physical activity standard was 49.24% and 42.92%, respectively. Linear regression analysis showed that there was a significant positive correlation between the duration of moderate-to-vigorous physical activity and maximal oxygen uptake (β=0.11, P < 0.01). Conclusion There is a significant correlation between moderate-to-vigorous physical activity with cardiorespiratory endurance among Chinese children and adolescents. Higher level of moderate-to-vigorous physical activity is important to help improve cardiopulmonary endurance among children and adolescents. -
Key words:
- Motor activity /
- Physical endurance /
- Growth and development /
- Child /
- Adolescent /
- Regression analysis
1) 利益冲突声明 所有作者声明无利益冲突。 -
表 1 不同性别年龄儿童青少年体力活动及心肺耐力活动情况比较(x±s)
Table 1. Comparison of physical activity and cardiorespiratory endurance activity of children and adolescents in different gender and age groups(x±s)
性别 年龄/岁 人数 统计值 体力活动/(min·d-1) 心肺耐力活动 低强度 中强度 高强度 中高强度 20 m往返跑/次 每分钟VO2max /(mL·kg-1) 男 7~9 570 30.14±28.87 45.46±36.89 14.92±20.30 60.37±45.24 14.63±7.91 46.53±2.18 10~12 529 31.26±30.26 58.03±41.94 22.04±23.88 80.07±50.93 31.19±13.82 45.26±3.75 13~15 559 34.94±31.43 53.12±37.67 18.42±21.66 71.54±45.00 48.89±19.35 45.28±5.33 16~18 570 29.69±29.26 43.57±34.27 18.85±21.30 62.41±42.27 49.87±21.05 41.06±6.10 合计 2 228 31.49±30.01 49.88±38.13 18.49±21.92 68.37±46.50 36.17±21.94 44.51±5.05 F值 3.56 17.54 9.85 21.33 589.37 152.79 P值 <0.05 <0.01 <0.01 <0.01 <0.01 <0.01 女 7~9 525 31.61±30.75 52.30±40.54 10.96±17.71 63.25±47.46 15.59±7.26 46.68±2.12 10~12 488 32.22±32.02 59.41±40.29 14.57±19.00 73.98±46.59 26.68±10.35 44.14±3.07 13~15 561 38.74±32.97 54.73±38.29 10.91±15.56 65.65±44.42 34.04±12.52 41.22±4.02 16~18 467 32.93±29.77 38.20±30.65 9.93±15.18 48.13±36.05 29.92±10.81 35.40±3.76 合计 2 041 34.02±31.58 51.44±38.54 11.58±17.00 63.02±44.91 26.59±12.56 41.99±5.29 F值 5.95 27.84 7.09 28.56 305.21 1 032.46 P值 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 表 2 不同年龄段儿童青少年中高强度体力活动时间是否达标者每分钟心肺耐力比较/(mL·kg-1)
Table 2. Comparison of cardiorespiratory endurance of Chinese children and adolescents in different age groups with high-intensity physical activity time/(mL·kg-1)
性别 是否达标 统计值 7~9岁 10~12岁 13~15岁 16~18岁 F值 P值 人数 x±s 人数 x±s 人数 x±s 人数 x±s 男 是 238 46.52±2.35 315 45.65±3.75 290 45.66±5.28 254 42.52±6.37 35.80 < 0.01 否 332 46.53±2.05 214 44.68±3.69 269 44.87±5.37 316 39.89±5.61 132.64 <0.01 t值 -0.02 2.94 1.76 5.23 P值 0.99 <0.01 0.08 <0.01 女 是 226 46.61±2.04 259 44.21±3.15 261 41.23±3.97 130 35.95±4.01 316.02 <0.01 否 299 46.73±2.19 229 44.05±2.98 300 41.21±4.08 337 35.19±3.65 694.53 <0.01 t值 -0.70 0.58 0.08 1.98 P值 0.50 0.56 0.94 0.05 表 3 中国儿童青少年中高强度体力活动时间与心肺耐力的线性回归分析(n=4 269)
Table 3. Linear regression analysis of high-intensity physical activity time and cardiopulmonary endurance in Chinese children and adolescents (n=4 269)
模型 自变量与常量 标准误 β值 t值 P值 B值(B值95%CI) 1 常量 0.45 115.93 <0.01 52.65(51.76~53.54) 性别 0.13 -0.25 -20.61 <0.01 -2.70(-2.96~-2.44) 城乡 0.14 -0.10 -7.96 <0.01 -1.10(-1.36~-0.83) 年龄 0.07 -0.52 -36.56 <0.01 -2.45(-2.58~-2.32) BMI 0.02 -0.10 -6.89 <0.01 -0.15(-0.20~-0.11) SES 0.07 -0.03 -2.14 <0.05 -0.14(-0.27~-0.01) 2 常量 0.46 112.71 <0.01 51.82(50.92~52.72) 性别 0.13 -0.25 -20.22 <0.01 -2.63(-2.89~-2.38) 城乡 0.14 -0.11 -8.47 <0.01 -1.16(-1.42~-0.89) 年龄 0.07 -0.51 -36.54 <0.01 -2.43(-2.56~-2.30) BMI 0.02 -0.10 -6.88 <0.01 -0.15(-0.20~-0.11) SES 0.07 -0.02 -1.81 0.07 -0.12(-0.25~0.01) 中高强度体力活动 0.00 0.11 8.77 <0.01 0.01(0.01~0.02) -
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