客观测量英国城市老年人多样化样本中的身体活动。

Objectively measured physical activity in a diverse sample of older urban UK adults.

机构信息

Centre for Exercise, Nutrition and Health Sciences, School for Policy Studies, University of Bristol, Bristol, United Kingdom.

出版信息

Med Sci Sports Exerc. 2011 Apr;43(4):647-54. doi: 10.1249/MSS.0b013e3181f36196.

DOI:10.1249/MSS.0b013e3181f36196

PMID:20689449

Abstract

BACKGROUND

There are many health and social benefits of physical activity (PA) for older adults, but little is known about their activity patterns.

PURPOSE

The purpose of this study was to objectively assess the PA patterns of older adults and the lifestyle and demographic factors associated with PA.

METHODS

Participants (N = 230, aged 78.1 yr) recruited from medical practices (between 2007 and 2008) completed journey logs and wore accelerometers for 7 d. Mean daily steps, counts per minute (CPM), minutes of sedentary, light, or moderate-to-vigorous PA (MVPA), and frequency of journeys were analyzed (in 2009).

RESULTS

Younger participants (age = 70-74.9 yr) were significantly (P < 0.001) more active (5660.8 steps per day) than older participants aged 80+ yr (3409.6 steps per day). Men performed significantly (P = 0.035) more minutes MVPA than women (23.1 vs 13.8 min MVPA per day). Normal weight participants were significantly (P < 0.05) more active (5368.9 steps per day) than overweight (4532.7 steps per day) and obese (3251.4 steps per day) groups. Those performing many journeys (>11.6 journeys per week) were significantly (P < 0.001) more active (5838.2 steps per day) than those performing few (<7 journeys per week) (3094.2 steps per day). PA was significantly (P < 0.001) greater in mornings (259.3 CPM) than afternoons (181.8 CPM) and evenings (102.5 CPM). Sundays were significantly (P < 0.001) less active (3331.7 steps per day) than Saturdays (4193.1 steps per day) and weekdays (4623.5 steps per day). Light activity was significantly (P = 0.005) higher in spring (3.4 h·d(-1)) than that in winter (2.7 h·d(-1)).

CONCLUSIONS

Older adults' PA patterns differ by age, gender, and weight status. Daily journeys are associated with more activity for all groups. Variability in volume of activity is high for all age groups. Temporal patterns of PA indicate that journeys out of the house for shopping and personal business are important in their contribution to PA levels.

摘要

背景

体力活动（PA）对老年人的健康和社交有很多益处，但人们对他们的活动模式知之甚少。

目的

本研究的目的是客观评估老年人的 PA 模式以及与 PA 相关的生活方式和人口统计学因素。

方法

参与者（N=230，年龄 78.1 岁）于 2007 年至 2008 年期间从医疗实践中招募，完成了旅行日志并佩戴加速度计 7 天。在 2009 年分析了平均每天的步数、每分钟计数（CPM）、久坐、轻度或中度至剧烈 PA（MVPA）的分钟数以及旅行的频率。

结果

年轻参与者（年龄=70-74.9 岁）比 80 岁以上的年长参与者（每天 3409.6 步）更活跃（每天 5660.8 步）。男性进行的 MVPA 分钟数明显（P=0.035）多于女性（每天 23.1 分钟 MVPA 比 13.8 分钟 MVPA）。正常体重的参与者比超重（每天 4532.7 步）和肥胖（每天 3251.4 步）组更活跃（每天 5368.9 步）。每周进行多次旅行（>11.6 次旅行）的人比每周进行几次旅行（<7 次旅行）的人（每天 3094.2 步）更活跃（每天 5838.2 步）。上午（259.3 CPM）的 PA 明显（P<0.001）高于下午（181.8 CPM）和晚上（102.5 CPM）。周日（每天 3331.7 步）比周六（每天 4193.1 步）和工作日（每天 4623.5 步）的活动量明显（P<0.001）较少。春季（3.4 小时·天（-1））的轻度活动量明显（P=0.005）高于冬季（2.7 小时·天（-1））。