Cross-sectional and prospective associations between physical activity, body mass index and waist circumference in children and adolescents.
Cross-sectional and prospective associations between physical activity, body mass index and waist circumference in children and adolescents.
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DOI：
10.1002/osp4.114
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发表时间：
2017-09
影响因子：
2.2
通讯作者：
Kolle E
中科院分区：
文献类型：
--
作者：
Dalene KE;Anderssen SA;Andersen LB;Steene-Johannessen J;Ekelund U;Hansen BH;Kolle E
使用等时替代模型研究儿童和青少年不同强度的体力活动（PA）、体重指数（BMI）和腰围（WC）之间的横断面和前瞻性关联。2005/2006年和2011/2012年，对6岁（n = 970）、9岁（n = 2，423）和15奥尔兹（n = 1，544）儿童的身体活动（加速度计）、BMI和WC进行了评估。2005/2006年9岁的参与者被前瞻性地随访至2011/12年（15岁）。采用等时替代模型研究了不同强度（轻、中、剧烈）PA、BMI和WC之间的关系。在所有年龄组中，用轻度PA替代每天10分钟的久坐时间与较高的WC（0.17至0.29 cm，p ≤ 0.003）相关。在6岁和9岁儿童中，用中度PA代替每天10分钟的久坐时间与较低的WC相关（−0.32至−0.47 cm，p ≤ 0.013））。在9岁和15岁的儿童中，用剧烈PA代替每天10分钟的久坐时间与较低的WC相关（−1.08至−1.79 cm，p ≤ 0.015））。与BMI结果的相关性相似。在前瞻性分析中，在9岁时用轻度、中度或剧烈PA替代久坐时间与15岁时的BMI或WC无关。用中等强度的PA代替久坐时间似乎与儿童肥胖有关，而青少年可能需要剧烈的PA。在前瞻性分析中未重复横断面相关性。
To study the cross‐sectional and prospective associations between physical activity (PA) of different intensities, body mass index (BMI) and waist circumference (WC) in children and adolescents using isotemporal substitution modelling. Physical activity (accelerometry), BMI and WC were assessed in 6‐ (n = 970), 9‐ (n = 2,423) and 15‐year‐olds (n = 1,544) in 2005/2006 and 2011/2012. Participants aged 9 years in 2005/2006 were followed prospectively to 2011/12 (age 15). Associations between PA of different intensities (light, moderate and vigorous), BMI and WC were examined using isotemporal substitution models. Substituting 10 min per day of sedentary time with light PA was associated with higher WC (0.17 to 0.29 cm, p ≤ 0.003)) in all age groups. Substituting 10 min per day of sedentary time with moderate PA was associated with lower WC in 6‐ and 9‐year‐olds (−0.32 to −0.47 cm, p ≤ 0.013)). Substituting 10 min per day of sedentary time with vigorous PA was associated with lower WC in 9‐ and 15‐year‐olds (−1.08 to −1.79 cm, p ≤ 0.015)). Associations were similar with BMI as the outcome. In prospective analyses, substituting sedentary time with light, moderate or vigorous PA at age 9 was not associated with BMI or WC at age 15. Substituting sedentary time with moderate PA appears favourably associated with adiposity in children, whereas vigorous PA may be required in adolescents. Cross‐sectional associations were not replicated in prospective analyses.