Adherence to physical activity guidelines in older adults, using objectively measured physical activity in a population-based study

BMC Public Health

Peter H Whincup⁴  S Goya Wannamethee⁶  Lucy T Lennnon⁶  Sarah Ash⁶  Juan Pablo Casas²  Christina Gutierrez³  Antoinette Amuzu³  Minkyoung Choi³  I-Min Lee⁵  Claudio Sartini⁶  Barbara J Jefferis¹ 

[1] UCL Physical Activity Research Group, London, UK;Institute of Cardiovascular Science, University College London, London, UK;Department of Non-Communicable Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK;Division of Community Health Sciences, St George’s University of London, London, UK;Brigham and Women’s Hospital, Harvard Medical School, Boston, USA;UCL Department of Primary Care & Population Health, UCL, London, UK

关键词: Self-efficacy;    Depression;    Physical health;    Accelerometer;    Physical activity;    Older adults;   

Others  :  1131532
DOI  :  10.1186/1471-2458-14-382

 received in 2013-11-05, accepted in 2014-04-08,  发布年份 2014

【 摘 要 】

Background

Physical activity (PA) levels in older adults decline with age. The prevalence and correlates of adherence to current UK PA guidelines in older adults has not been studied using objectively measured PA, which can examine precisely whether PA is carried out in bouts of specified length and intensity.

Methods

Free living men and women aged 70–93 years from 25 towns in the United Kingdom, participating in parallel on-going population based cohort studies were invited (by post) to wear a GT3x accelerometer over the hip for one week in 2010–12. Adherence to UK PA guidelines was defined as ≥150 minutes/week of moderate or vigorous PA (MVPA) in bouts of ≥10 minutes; the effect of different intensities and durations were examined.

Results

1593 men and 857 women participated (responses 51% and 29% respectively). 15% men and 10% women achieved ≥150 minutes/week of MVPA (defined as >1040 cpm) in bouts lasting ≥10 minutes. With MVPA defined as >1952 cpm, prevalences were 7% and 3% respectively. Those adhering to guidelines were younger, had fewer chronic health conditions, less depression, less severe mobility limitations, but higher exercise self-efficacy and exercise outcomes expectations. They rated their local environment more highly for social activities and leisure facilities, having somewhere nice to go for a walk and feeling safe after dark, They left the house on more days per week, were more likely to use active transport (cycle or walk) and to walk a dog regularly.

Conclusions

Few older adults attain current PA guidelines. Health promotion to extend the duration of moderate-intensity activity episodes to 10 minutes or more could yield important health gains among older adults. However future studies will need to clarify whether attaining guideline amounts of PA in spells lasting 10 minutes or more is critical for reducing chronic disease risks as well as improving cardiometabolic risk factors.

【 授权许可】

   
2014 Jefferis et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

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