Active commuting to and from school and BMI in elementary school children - preliminary data
Active commuting to and from school and BMI in elementary school children - preliminary data
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DOI：
10.1111/j.1365-2214.2005.00513.x
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发表时间：
2005-05-01
影响因子：
1.9
通讯作者：
Greene, L
中科院分区：
文献类型：
--
作者：
Heelan, KA;Donnelly, JE;Greene, L
背景美国国家健康目标包括将居住在1.6公里范围内的儿童步行上学和放学的比例提高到50%。这一目标的目的是提高儿童的体育活动水平。然而，步行，骑自行车或滑冰（积极通勤）的影响，从学校的患病率超重unknown.Methods身体质量指数（BMI）测量320名儿童（年龄10.2 +/- 0.7岁）在9月。在5个月内，通过问卷调查估计主动通勤指数（SI）和每日体力活动。结果4月份BMI与校正9月份BMI后的SI呈显著正相关（部分r = 0.03，P < 0.05）。SI与学龄前体力活动（r = 0.17，P < 0.05）和每日中等强度体力活动（r = 0.13，P < 0.05）呈正相关。SI与BF之间无显著相关性（P > 0.05）。结论积极通勤似乎不能提供足够的体力活动来降低BMI，但可能有助于达到体力活动建议。未来的研究需要客观地衡量积极通勤对超重患病率的影响。
Background United States National Health Objectives include increasing the proportion of trips made by walking to and from school for children who live within 1.6 km to 50%. The purpose of this objective is to increase the level of physical activity among children. However, the impact of walking, bicycling or skating (active commuting) to and from school on the prevalence of overweight is unknown.Methods Body mass index (BMI) was measured for 320 children (age 10.2 +/- 0.7 years) in September. Over 5 months, an active commuting index (SI) and daily physical activity were estimated via questionnaire. In April, BMI and body fat were measured.Results A significant positive association was found between April BMI and SI adjusting for September BMI (partial r = 0.03, P < 0.05). Positive associations were found between SI and physical activity before school (r = 0.17, P < 0.05) and daily moderate intensity physical activity (r = 0.13, P < 0.05). There were no significant association between SI and BF (P > 0.05).Conclusions This preliminary data suggests that active commuting does not appear to provide sufficient amounts of physical activity to attenuate BMI; however, it may contribute to the attainment of physical activity recommendations. Future research is needed to objectively measure the impact of active commuting on the prevalence of overweight.