UREN (Unité de Recherche en Epidémiologie Nutritionnelle), U557 Inserm, U1125 Inra, Cnam; Paris 13, CRNH IdF, F-93017 Bobigny, France.
Int J Behav Nutr Phys Act. 2010 Feb 4;7:14. doi: 10.1186/1479-5868-7-14.
Longitudinal studies on physical activity patterns around retirement age are scarce and provide divergent findings. Little is known about changes in sedentary behaviour in this context. Our aim was to investigate relationships between retirement and 3-year changes in leisure-time physical activity (LTPA) patterns and sedentary behaviour in middle-aged French adults.
Past-year LTPA and sedentary behaviour (watching television) were assessed in 1998 and 2001 using the Modifiable Activity Questionnaire on participants in the SU.VI.MAX (Supplementation with Antioxidants and Minerals) study. A total of 698 men and 691 women aged 45-64 were included in this analysis. Comparisons were made between subjects who had retired between 1998 and 2001 and those who continued to work, using the Chi-square test, Student t-test, Wilcoxon rank test or covariance analysis where appropriate.
20.1% of men and 15.6% of women retired during follow-up. The baseline LTPA level was similar between subjects who retired during follow-up and those who continued to work. Mean LTPA increased by about 2 h/week in men and women who had retired, whereas no change was observed in employed persons. The positive change in LTPA following retirement was mainly related to an increase in activities of moderate intensity, such as walking. Retirement did not modify the ranking of the most frequently performed LTPAs, but the number of participants and the duration increased through retirement. In men, the increase in time spent watching TV was more than twice as high in retirees as in workers (+40.5 vs. +15.0 min/day, P < 0.0001). The same tendency was observed among women, but was borderline non-significant (+33.5 vs. +19.9 min/day, P = 0.05). In women, retirees who increased their walking duration by 2 h/week or more also decreased time spent watching TV by 11.5 min/day.
Retirement was associated with both an increase in LTPAs and in time spent watching TV, suggesting that retirement is an important period not only for promoting physical activity, but also for limiting sedentary behaviour.
关于退休年龄前后的身体活动模式的纵向研究很少，且研究结果存在差异。在这方面，关于久坐行为的变化知之甚少。我们的目的是研究法国中年成年人退休与 3 年休闲时间体力活动（LTPA）模式和久坐行为变化之间的关系。
使用 Modifiable Activity Questionnaire 在 1998 年和 2001 年评估过去一年的 LTPA 和久坐行为（看电视）。这项 SU.VI.MAX（抗氧化剂和矿物质补充）研究共纳入了 698 名男性和 691 名女性，年龄在 45-64 岁之间。使用卡方检验、学生 t 检验、Wilcoxon 秩检验或协方差分析比较了 1998 年至 2001 年间退休的受试者和继续工作的受试者。
20.1%的男性和 15.6%的女性在随访期间退休。在退休期间和继续工作的受试者之间，基线 LTPA 水平相似。退休的男性和女性的 LTPA 每周增加约 2 小时，而在职人员没有变化。退休后 LTPA 的积极变化主要与中强度活动（如步行）的增加有关。退休没有改变最常进行的 LTPA 的排名，但通过退休，参与者的数量和持续时间增加。在男性中，退休人员看电视的时间增加了两倍多（+40.5 比+15.0 分钟/天，P < 0.0001）。在女性中也观察到了相同的趋势，但没有显著意义（+33.5 比+19.9 分钟/天，P = 0.05）。在女性中，每周步行时间增加 2 小时或以上的退休人员每天看电视的时间也减少了 11.5 分钟。
退休与 LTPA 的增加和看电视时间的增加有关，这表明退休不仅是促进体力活动的重要时期，也是限制久坐行为的重要时期。
