Journal
AGE AND AGEING
Volume 42, Issue 2, Pages 222-229Publisher
OXFORD UNIV PRESS
DOI: 10.1093/ageing/afs160
Keywords
physical activity; accelerometry; sedentary behaviour; older adults; BMI; AGES-Reykjavik; older people
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Funding
- NIH [N01-AG-1-2100]
- NIA Intramural Research Program
- Hjartavernd (the Icelandic Heart Association)
- Althingi (the Icelandic Parliament)
- National Institutes of Health Intramural Research Program [Z01 DK071013, Z01 DK071014]
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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 x 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.
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