De la Cámara Miguel A, Pardos-Sevilla Ana I, Jiménez-Fuente Augusto, Hubler-Figueiró Thamara, d'Orsi Eleonora, Rech Cassiano Ricardo
J Aging Phys Act. 2022 Apr 1;30(2):323-331. doi: 10.1123/japa.2021-0116. Epub 2021 Aug 27.
The aim of this study was to examine, theoretically, how reallocating time between the intensity of mutually exclusive categories of physical activity and sedentary behavior time is associated with metabolic syndrome. Four hundred and six older adults (61.6% women) from the second wave of the EpiFloripa Aging Cohort Study were included in the study (mean age 71.7 ± 5.9 years). Isotemporal substitution analysis showed a decrease of 35% (odds ratio: 0.65; 95% confidence interval [0.45, 0.96]) in the risk for metabolic syndrome when replacing 30 min/day of sedentary behavior with an equivalent amount of moderate to vigorous physical activity. Furthermore, it has been observed that older adults classified as low sedentary behavior and physically active were 57% less likely to have metabolic syndrome than participants classified as high sedentary and physically inactive (odds ratio: 0.43; 95% confidence interval [0.19, 0.97]). This study highlights the importance of behavioral categories that may emerge concerning the interrelationships of physical activity and health in older adults, having important implications for future health intervention programs.
本研究的目的是从理论上探讨，在相互排斥的身体活动强度类别和久坐行为时间之间重新分配时间，与代谢综合征之间存在怎样的关联。来自EpiFloripa衰老队列研究第二波的406名老年人（61.6%为女性）被纳入研究（平均年龄71.7±5.9岁）。等时替代分析表明，用等量的中等至剧烈身体活动替代每天30分钟的久坐行为时，代谢综合征风险降低了35%（优势比：0.65；95%置信区间[0.45, 0.96]）。此外，据观察，被归类为久坐行为少且身体活跃的老年人患代谢综合征的可能性比被归类为久坐行为多且身体不活跃的参与者低57%（优势比：0.43；95%置信区间[0.19, 0.97]）。本研究强调了与老年人身体活动和健康的相互关系相关的行为类别之重要性，这对未来的健康干预计划具有重要意义。
