儿童在冬季的活动不足

2016-03-03 佚名 生物谷

在最新发表于《Medicine & Science in Exercise & Sport》期刊的研究中,剑桥大学研究人员发现,与一年中的其他时节相比,儿童在秋季和冬季活动较少,坐着的时间更多。基于这些发现,他们呼吁:应该给予更多的支持,确保儿童在冬季特别是周末保持活跃。 公共卫生指南中的建议是,儿童应该每天累计进行至少一个小时的中度到剧烈身体活动,包括快步走或跑步,积极参与运动

在最新发表于《Medicine & Science in Exercise & Sport》期刊的研究中,剑桥大学研究人员发现,与一年中的其他时节相比,儿童在秋季和冬季活动较少,坐着的时间更多。基于这些发现,他们呼吁:应该给予更多的支持,确保儿童在冬季特别是周末保持活跃。

公共卫生指南中的建议是,儿童应该每天累计进行至少一个小时的中度到剧烈身体活动,包括快步走或跑步,积极参与运动或锻炼等。与此同时,儿童应该将处于坐姿的时间最小化。

为了研究儿童行为的季节性变化,英国医学研究委员会(MRC)流行病学研究单元和剑桥大学饮食与活动研究中心(CEDAR)的研究人员们利用了来自英国千禧世代研究(UK Millennium Cohort Study)的数据,这项研究使用加速度计测量了超过700名7岁儿童全年的身体活动水平。利用这些数据,他们还建立了活动水平与不同变量(比如性别、体重和家庭收入)之间关系的模型。

研究人员发现,与春季相比,儿童在秋季和冬季的身体活动水平较低;整个群组的平均活动水平在4月达到顶峰,65.3分钟/天;2月份处于最低水平,47.8分钟/天。冬季周末的身体活动水平最低,而在初夏尤其是周末则最为活跃。

模型表明,男孩的全年活动水平变化(幅度)超过女孩,但活动水平仍高于女孩。平均而言,男孩即使在冬季也达到了推荐的最低活动水平,但女孩只有在夏季才倾向于达到推荐水平。

"身体活动对儿童的健康和发育非常重要,但很多儿童没有得到足够的锻炼"该研究第一作者Andrew Atkin博士说,"春季和夏季的天气更好,白天的时间也较长,他们倾向于外出玩耍也更活跃,但在阴暗、寒冷的几个月里,他们的活动水平较低。"

研究团队认为,这些结果进一步支持那些旨在鼓励儿童冬季(尤其是周末)身体活动的举措。在一定程度上,上学日的结构,包括上学和放学路途中的活动,能够防止工作日时间的不活跃。

"需要给儿童提供更多的机会来保持活跃,特别是在冬季和天气不好的时候"该研究资深作者Esther van Sluijs博士补充道,"这可能包括提供儿童能够活动的更好的室内空间,或着改变与在恶劣天气使用室内和室外空间相关的政策。"

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    2016-03-03 harry37640

    注意儿科

    0

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    2016-03-03 ssummer

    北方冬天户外实在太冷啊

    0

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    2016-03-03 文医生

    这些年空气不好弄的大家都不怎么出门

    0

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前瞻性队列研究积累的证据表明,乳制品消费与儿童期超重/肥胖的风险呈负相关和纵向关联。进一步的研究有必要检查乳制品类型与儿童期超重/肥胖的风险之间的关联。

Appetite:家长控制与超重/肥胖儿童过度消费休闲食品

父母监控与孩子甜点食物摄入量相关,母亲心理控制与子女休闲食品总消费量相关。未来的研究应评估儿童饮食和家长养育子女的方式之间的复杂关系,特别是关注特殊食品种类的作用。

Hospital Pediatrics:儿童肥胖小心血栓形成

威克森林浸信医学中心的研究人员发现了儿童和青少年肥胖与静脉血栓形成的关系。在成人中,肥胖是静脉血栓栓塞(VTE)众所周知的危险因素,而在儿童中,先前的研究获得了不同的结果。研究人员发现,青少年由BMI定义的肥胖可预测血栓形成。威克森林大学儿科系助理教授,该研究的第一作者Elizabeth Halvorson称:“在过去二十年里儿童VTE发生率急剧增加,而美国的儿童肥胖率依旧很高,弄清楚两者间的关系

Circulation:儿童感染病毒增加了动脉缺血性中风的风险

流行病学研究表明,儿童期感染,包括水痘带状疱疹病毒(VZV),增加了动脉缺血性中风(AIS)的风险。在一些报道的案例中其他疱疹病毒已与儿童AIS有关。研究人员试图确定疱疹病毒感染,这种可潜在治疗的,是否增加儿童期的AIS的危险。研究人员招募了326例AIS的集中确诊病例,和115名无中风对照的创伤患者(年龄29天,18岁),急性血样(后中风/创伤≤3周);当病例有康复样品(7-28天后)时数据是可