J Phys Act Health. 2020 May 8;17(6):592-602. doi: 10.1123/jpah.2019-0282.
Health benefits of physical activity (PA) accrue with small increases in PA, with the greatest benefits for those transitioning from inactivity to any level of PA. This study examined whether self-reported PA time in Queensland adults changed between 2004 and 2018.
The Queensland government conducts regular cross-sectional telephone surveys. Between 2004 and 2018, adults aged 18-75 years answered identical questions about their weekly minutes of walking, moderate PA, and vigorous PA. Hurdle regression estimated the average annual change in weekly minutes of PA overall and by activity type, focusing on sociodemographic differences in trends.
The sample size averaged 1764 (2004-2008) and 10,188 (2009-2018), totaling 107,171 participants aged 18-75 years. Unadjusted PA increased by 10 minutes per week per year (95% confidence interval [CI], 8.8-11.1) overall, with increases for most subgroups. Adjusted PA increased by 10.5 minutes per week per year (95% CI, 9.4-11.7). Trends differed by employment-employed adults and those not in the labor force increased by 14.3 (95% CI, 12.8-15.8) and 2.2 minutes per week per year (95% CI, 0.4-4.0), respectively, with no increase for unemployed adults. The increases were due to both an increased prevalence of doing any activity and an increased average duration among active adults.
Since 2004, PA time has increased for Queensland adults, with substantial variability by employment status.
身体活动（PA）的健康益处随着 PA 量的微小增加而累积，对于从不活动过渡到任何水平的 PA 的人来说，益处最大。本研究旨在检验昆士兰州成年人的自我报告 PA 时间是否在 2004 年至 2018 年间发生了变化。
昆士兰州政府定期进行横断面电话调查。在 2004 年至 2018 年间，18-75 岁的成年人回答了关于他们每周步行、适度 PA 和剧烈 PA 分钟数的相同问题。障碍回归估计了 PA 每周分钟数的平均年度变化，总体上以及按活动类型进行分析，重点关注趋势在社会人口统计学差异方面的表现。
样本量平均为 1764（2004-2008 年）和 10188（2009-2018 年），共 107171 名 18-75 岁的参与者。未经调整的 PA 每周增加 10 分钟/年（95%置信区间[CI]，8.8-11.1），大多数亚组均有增加。调整后的 PA 每周增加 10.5 分钟/年（95%CI，9.4-11.7）。趋势因就业状况而异：在职成年人和非劳动力成年人每周分别增加 14.3（95%CI，12.8-15.8）和 2.2 分钟/年（95%CI，0.4-4.0），而失业成年人的 PA 时间没有增加。这些增加是由于任何活动的发生率增加以及活跃成年人的平均时长增加所致。
自 2004 年以来，昆士兰州成年人的 PA 时间有所增加，就业状况存在显著差异。
