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首页> 外文期刊>International Journal of Environmental Research and Public Health >A Count Model to Study the Correlates of 60 Min of Daily Physical Activity in Portuguese Children
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A Count Model to Study the Correlates of 60 Min of Daily Physical Activity in Portuguese Children

机译：研究葡萄牙儿童每天60分钟体育锻炼相关性的计数模型

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This study aimed to present data on Portuguese children (aged 9–11 years) complying with moderate-to-vigorous physical activity (MVPA) guidelines, and to identify the importance of correlates from multiple domains associated with meeting the guidelines. Physical activity (PA) was objectively assessed by accelerometry throughout seven days on 777 children. A count model using Poisson regression was used to identify the best set of correlates that predicts the variability in meeting the guidelines. Only 3.1% of children met the recommended daily 60 min of MVPA for all seven days of the week. Further, the Cochrane–Armitage chi-square test indicated a linear and negative trend (p < 0.001) from none to all seven days of children complying with the guidelines. The count model explained 22% of the variance in meeting MVPA guidelines daily. Being a girl, having a higher BMI, belonging to families with higher income, sleeping more and taking greater time walking from home to a sporting venue significantly reduced the probability of meeting daily recommended MVPA across the seven days. Furthermore, compared to girls, increasing sleep time in boys increased their chances of compliance with the MVPA recommendations. These results reinforce the relevance of considering different covariates’ roles on PA compliance when designing efficient intervention strategies to promote healthy and active lifestyles in children.
机译：这项研究的目的是提供符合中度到剧烈体育锻炼（MVPA）指南的葡萄牙儿童（9-11岁）的数据，并确定与指南相关的多个领域的关联的重要性。通过加速度计客观地评估了777名儿童的7天的体育活动（PA）。使用Poisson回归的计数模型用于确定预测相关性变化的最佳相关组。在一周的所有7天中，只有3.1％的儿童达到了建议的每天60分钟的MVPA。此外，Cochrane-Armitage卡方检验表明，从零到符合准则的儿童的所有7天呈线性和负趋势（p <0.001）。计数模型每天解释了MVPA准则中22％的差异。作为一个女孩，BMI较高，属于收入较高的家庭，更多的睡眠时间，以及更多的时间从家里步行到运动场馆，显着降低了在7天内达到每日推荐MVPA的可能性。此外，与女孩相比，男孩的睡眠时间增加，增加了他们遵守MVPA建议的机会。这些结果加强了在设计有效的干预策略以促进儿童健康积极的生活方式时考虑不同协变量对PA依从性的相关性。

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