Peiris Casey L, Taylor Nicholas F, Verswijveren Simone J J M
School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, VIC, Australia.
Allied Health, The Royal Melbourne Hospital, Parkville, VIC, Australia.
J Aging Phys Act. 2024 Dec 20;33(3):262-271. doi: 10.1123/japa.2023-0275. Print 2025 Jun 1.
Research suggests associations between physical activity, sedentary behavior, sleep, and metabolic syndrome, but most has focused on healthy populations and individual behaviors. We investigated associations of 24-hr movement behavior compositions with cardiometabolic risk factors and metabolic syndrome in adults receiving rehabilitation for other health conditions.
This cross-sectional study assessed 24-hr movement behaviors using thigh-worn accelerometers and metabolic outcomes via blood analyses in 145 adults attending outpatient rehabilitation. Regression models tested associations of five 24-hr time-use behaviors (time in bed, sedentary time, standing, light-intensity stepping, and moderate- to vigorous-intensity stepping) with cardiometabolic risk factors and metabolic syndrome severity score (a cumulative measure of risk derived from metabolic risk factors).
Participants (64 [SD 12] years old; 52% women; 66% with metabolic syndrome, with 6 [SD 0.7] days of 24-hr data) spent 41% of a 24-hr day sedentary, 15% standing, 3% in light-intensity stepping, 2% in moderate- to vigorous-intensity stepping, and 38% in bed. Adjusted models indicated that a higher proportion of light-intensity stepping was associated with lower triglycerides, more time in bed was associated with a higher metabolic syndrome severity score, and more time stepping was associated with a lower metabolic syndrome severity score. There was no evidence of associations between the overall compositions and outcomes.
The consistently observed small proportions of physical activity, with lack of variation between participants, may not be sufficient to counteract the impact of high sedentary time on metabolic outcomes in adults attending outpatient rehabilitation.
Future research may focus on exploring ways to increase light-intensity stepping in sedentary older adults with various health conditions.
研究表明身体活动、久坐行为、睡眠与代谢综合征之间存在关联，但大多数研究集中在健康人群和个体行为上。我们调查了接受其他健康状况康复治疗的成年人中24小时运动行为构成与心血管代谢危险因素和代谢综合征之间的关联。
这项横断面研究使用大腿佩戴式加速度计评估了145名门诊康复患者的24小时运动行为，并通过血液分析评估了代谢结果。回归模型测试了五种24小时时间使用行为（卧床时间、久坐时间（坐姿）、站立时间、轻度强度行走、中度至剧烈强度行走）与心血管代谢危险因素和代谢综合征严重程度评分（从代谢危险因素得出的累积风险指标）之间的关联。
参与者（年龄64[标准差12]岁；52%为女性；66%患有代谢综合征，有6[标准差0.7]天的24小时数据）在24小时中41%的时间久坐，15%的时间站立，3%的时间进行轻度强度行走，2%的时间进行中度至剧烈强度行走，38%的时间卧床。校正模型表明，较高比例的轻度强度行走与较低的甘油三酯水平相关，较长的卧床时间与较高的代谢综合征严重程度评分相关，较多的行走时间与较低的代谢综合征严重程度评分相关。没有证据表明总体构成与结果之间存在关联。
持续观察到的身体活动比例一直较小，且参与者之间缺乏差异，可能不足以抵消门诊康复成年人久坐时间过长对代谢结果的影响。
未来的研究可能集中在探索增加患有各种健康状况的久坐老年人群轻度强度行走的方法。
