Comparison of Summer and Winter Objectively Measured Physical Activity and Sedentary Behavior in Older Adults: Age, Gene/Environment Susceptibility Reykjavik Study.
Comparison of Summer and Winter Objectively Measured Physical Activity and Sedentary Behavior in Older Adults: Age, Gene/Environment Susceptibility Reykjavik Study.
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DOI：
10.3390/ijerph14101268
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发表时间：
2017-10-21
影响因子：
--
通讯作者：
Sveinsson T
中科院分区：
文献类型：
--
作者：
Arnardottir NY;Oskarsdottir ND;Brychta RJ;Koster A;van Domelen DR;Caserotti P;Eiriksdottir G;Sverrisdottir JE;Johannsson E;Launer LJ;Gudnason V;Harris TB;Chen KY;Sveinsson T
在冰岛，夏季和冬季的日光变化很大。该研究的目的是确定这种巨大的变化如何影响体力活动（PA）和久坐行为（SB）。在夏季和冬季，通过腰戴式加速度计测量138名社区居住老年人（61.1%女性，80.3 ± 4.9岁）清醒时的自由生活PA，持续一周。总体而言，SB约占登记佩戴时间的75%，且与年龄高度相关（β = 0.36）。虽然差异很小，但在夏季，除了中度至剧烈PA（MVPA）外，所有PA类别都花费了更多的时间，SB减少。夏季≥5分钟发作中积累的生活方式PA（LSPA）多于冬季，尤其是在高度活跃的参与者中。这一信息对于政策制定者和从事老年人工作的卫生专业人员可能很重要。在分析SB和PA数据时，需要考虑季节差异。
In Iceland, there is a large variation in daylight between summer and winter. The aim of the study was to identify how this large variation influences physical activity (PA) and sedentary behavior (SB). Free living PA was measured by a waist-worn accelerometer for one week during waking hours in 138 community-dwelling older adults (61.1% women, 80.3 ± 4.9 years) during summer and winter months. In general, SB occupied about 75% of the registered wear-time and was highly correlated with age (β = 0.36). Although the differences were small, more time was spent during the summer in all PA categories, except for the moderate-to-vigorous PA (MVPA), and SB was reduced. More lifestyle PA (LSPA) was accumulated in ≥5-min bouts during summer than winter, especially among highly active participants. This information could be important for policy makers and health professionals working with older adults. Accounting for seasonal difference is necessary in analyzing SB and PA data.
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