老年人日常体力活动模式和久坐行为的客观测量：年龄、基因/环境易感性-雷克雅未克研究。
Objective measurements of daily physical activity patterns and sedentary behaviour in older adults: Age, Gene/Environment Susceptibility-Reykjavik Study.
机构信息
Research Center of Movement Science, University of Iceland, Stapi v/Hringbraut, Reykjavík 101, Iceland.
出版信息
Age Ageing. 2013 Mar;42(2):222-9. doi: 10.1093/ageing/afs160. Epub 2012 Oct 31.
BACKGROUND
objectively measured population physical activity (PA) data from older persons is lacking. The aim of this study was to describe free-living PA patterns and sedentary behaviours in Icelandic older men and women using accelerometer.
METHODS
from April 2009 to June 2010, 579 AGESII-study participants aged 73-98 years wore an accelerometer (Actigraph GT3X) at the right hip for one complete week in the free-living settings.
RESULTS
in all subjects, sedentary time was the largest component of the total wear time, 75%, followed by low-light PA, 21%. Moderate-vigorous PA (MVPA) was <1%. Men had slightly higher average total PA (counts × day(-1)) than women. The women spent more time in low-light PA but less time in sedentary PA and MVPA compared with men (P < 0.001). In persons <75 years of age, 60% of men and 34% of women had at least one bout ≥10 min of MVPA, which decreased with age, with only 25% of men and 9% of women 85 years and older reaching this.
CONCLUSION
sedentary time is high in this Icelandic cohort, which has high life-expectancy and is living north of 60° northern latitude.
背景
缺乏针对老年人的客观测量的人群体力活动（PA）数据。本研究的目的是使用加速度计描述冰岛老年男女的自由生活 PA 模式和久坐行为。
方法
2009 年 4 月至 2010 年 6 月，AGESII 研究的 579 名参与者年龄在 73-98 岁之间，在自由生活环境中右髋部佩戴加速度计（Actigraph GT3X）一周。
结果
在所有受试者中，久坐时间是总佩戴时间的最大组成部分，占 75%，其次是低强度 PA，占 21%。中等-剧烈 PA（MVPA）<1%。男性的平均总 PA（计数/天）略高于女性。与男性相比，女性在低强度 PA 中花费的时间更多，在久坐 PA 和 MVPA 中花费的时间更少（P<0.001）。在<75 岁的人群中，60%的男性和 34%的女性至少有一次 10 分钟以上的 MVPA，随着年龄的增长，这一比例逐渐下降，只有 25%的男性和 9%的女性 85 岁及以上达到这一水平。
结论
在这个预期寿命长且位于北纬 60°以北的冰岛队列中，久坐时间很高。
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