Centre for Chronic Disease Prevention, Public Health Agency of Canada, Ottawa Canada.
Social Determinants and Science Integration Directorate, Public Health Agency of Canada, Ottawa Canada.
Am J Prev Med. 2014 Aug;47(2):123-30. doi: 10.1016/j.amepre.2014.04.003. Epub 2014 May 27.
Leisure-time physical activity (LTPA) plays a key role in chronic disease prevention and health promotion. The impact of life-changing events on LTPA among adults is unknown.
To examine the association between life-changing events and decreased LTPA levels.
Eight cycles of Canadian National Population Health Survey data were used for this study. A total of 12,901 respondents aged ≥18 years in 1994-1995 completed biannual follow-ups until 2008-2009. The association between life-changing events and decreased LTPA in any 2-year period was assessed with adjustment of potential confounding factors. Data were analyzed in 2012.
From 1994-1995 to 2008-2009, nine of ten people changed their LTPA levels. Within each 2-year period, individuals were more likely to decrease their LTPA levels if they married within the 2-year period (men); became or remained overweight/obese (women); remained a regular smoker (men); became or remained unhealthy (men and women); developed or continued to have body pain (women); and acquired social support or remained without support (men).
Most people change their LTPA levels or patterns, which are significantly influenced by life-changing events. An improved understanding of factors that influence LTPA may help better target those at high risk.
休闲时间体力活动（LTPA）在慢性病预防和促进健康方面发挥着关键作用。生活变化事件对成年人 LTPA 的影响尚不清楚。
研究生活变化事件与 LTPA 水平下降之间的关系。
本研究使用了加拿大国家人口健康调查的 8 个周期的数据。1994-1995 年共有 12901 名年龄≥18 岁的受访者完成了两年一次的随访，直至 2008-2009 年。调整了潜在混杂因素后，评估了生活变化事件与任何两年期间 LTPA 下降之间的关系。数据分析于 2012 年进行。
从 1994-1995 年到 2008-2009 年，十分之九的人改变了他们的 LTPA 水平。在每个两年期间，如果个体在该两年期间结婚（男性）；变得或一直超重/肥胖（女性）；一直是规律吸烟者（男性）；变得或一直不健康（男性和女性）；出现或持续有身体疼痛（女性）；获得社会支持或一直没有支持（男性），他们更有可能降低 LTPA 水平。
大多数人改变了他们的 LTPA 水平或模式，这受到生活变化事件的显著影响。更好地了解影响 LTPA 的因素可能有助于更好地针对高危人群。
