School of Physical Education, Shandong University, 17922 Jingshi Road, Lixia District, Jinan City, Shandong Province 250061, China.
School of Nursing and Rehabilitation, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Lixia District, Jinan City, Shandong Province 250102, China.
Eur J Cardiovasc Nurs. 2023 May 25;22(4):374-381. doi: 10.1093/eurjcn/zvac079.
Arterial stiffness is an important risk factor of arteriosclerosis and cardiovascular events. Sedentary behaviour (SB) is associated with increased risk for chronic cardiovascular diseases (CVDs) and poor health outcomes. This study aims to investigate the associations of objectively measured patterns of SB with arterial stiffness in Chinese community-dwelling older women.
Cross-sectional data were derived from the baseline survey of the Physical Activity and Health in Older Women Study. Arterial stiffness was evaluated through cardio-ankle vascular index (CAVI), CAVI ≥ 9 was defined as cut-off point. Sedentary behaviour patterns including sedentary time in SB bouts of ≥10, 30, and 60 min, number of SB bouts ≥10, 30, and 60 min, were measured via tri-axial accelerometers. Multivariate logistic regression was used to investigate associations of different SB patterns with arterial stiffness. Of the total 1125 women aged 60-70, the prevalence of CAVI ≥ 9 was 25.8%. After adjustment for confounding factors, only sedentary time in SB bout ≥30 and 60 min, number of SB bouts ≥60 min were associated with arterial stiffness, with an adjusted odds ratio (OR) [95% confidence interval (CI)] of 1.06 (1.00-1.12) and 1.11 (1.03-1.20) per 30 min increase per day, 1.35 (1.05-1.74) per bout per day, respectively.
Longer duration of prolonged SB periods was associated with higher level of arterial stiffness. Shortening and interrupting accumulated periods of SB may be an achievable strategy to reduce risk of CVD in self-care and cardiovascular nursing.
动脉僵硬度是动脉硬化和心血管事件的一个重要危险因素。久坐行为（SB）与慢性心血管疾病（CVDs）风险增加和健康状况不佳有关。本研究旨在调查中国社区居住的老年女性中，客观测量的 SB 模式与动脉僵硬度的相关性。
横断面数据来自老年女性身体活动与健康研究的基线调查。通过心血管-踝血管指数（CAVI）评估动脉僵硬度，将 CAVI≥9 定义为截断点。使用三轴加速度计测量 SB 中的久坐时间（≥10、30 和 60 分钟的 SB 时段）、SB 时段数（≥10、30 和 60 分钟的 SB 时段）等久坐行为模式。使用多变量逻辑回归分析不同 SB 模式与动脉僵硬度的关系。在总共 1125 名 60-70 岁的女性中，CAVI≥9 的患病率为 25.8%。在调整混杂因素后，只有 SB 时段中≥30 和 60 分钟的久坐时间、≥60 分钟的 SB 时段数与动脉僵硬度相关，每天增加 30 分钟的调整后比值比（OR）[95%置信区间（CI）]为 1.06（1.00-1.12）和 1.11（1.03-1.20），每天增加 1 个 SB 时段的调整后 OR 为 1.35（1.05-1.74）。
较长时间的久坐行为与较高水平的动脉僵硬度相关。缩短和打断累积的久坐行为时间可能是自我保健和心血管护理中降低 CVD 风险的一种可行策略。
