Sophie H Kroesen, Bram M A van Bakel, Marijn de Bruin, Arzu Günal, Arko Scheepmaker, Wim R M Aengevaeren, Frank F Willems, Roderick Wondergem, Martijn F Pisters, Francisco B Ortega, Maria T E Hopman, Dick H J Thijssen, Esmée A Bakker, Thijs M H Eijsvogels
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The control group received CR, whereas SIT LESS participants additionally received a 12-week hybrid behaviour change intervention. The primary outcome was the change in accelerometer-derived ST from pre-CR to post-CR and 3 months post-CR. Secondary outcomes included changes in ST and physical activity characteristics, subjective outcomes, and cardiovascular risk factors. A baseline constrained linear mixed-model was used.</p><p><strong>Results: </strong>Participants (23% female; SIT LESS: n = 108, control: n = 104) were 63 ± 10 years. Greater ST reductions were found for SIT LESS compared to control post-CR (-1.7 (95% confidence interval (CI): -2.0; -1.4) versus - 1.1 (95% CI: -1.4; -0.8) h/day, p<sub>interaction</sub>=0.009), but not at 3 months post-CR (p<sub>interaction</sub>=0.61). Besides, larger light-intensity physical activity (LIPA) increases were found for SIT LESS compared to control post-CR (+ 1.4 (95% CI: +1.2; +1.6) versus + 1.0 (95% CI: +0.8; +1.3) h/day, p<sub>interaction</sub>=0.020). Changes in other secondary outcomes did not differ among groups.</p><p><strong>Conclusion: </strong>SIT LESS transiently reduced ST and increased LIPA, but group differences were no longer significant 3 months post-CR. These findings highlight the challenge to induce sustainable behaviour changes in CAD patients without any continued support.</p><p><strong>Trial registration: </strong>Netherlands Trial Register: NL9263. 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引用次数: 0
摘要
背景：在冠状动脉疾病（CAD）患者中，久坐时间（ST）过长的现象非常普遍，因此需要采取改变行为的干预措施来有效减少 ST。我们研究了 SIT LESS 干预对参加心脏康复（CR）的冠心病患者久坐时间变化的近期和中期影响：方法：在两家地区医院参加心脏康复的 CAD 患者被纳入这项随机对照试验（1:1，按性别和医院分层）。对照组接受 CR，而 SIT LESS 参与者则额外接受为期 12 周的混合行为改变干预。主要结果是加速度计得出的 ST 值从 CR 前到 CR 后以及 CR 后 3 个月的变化。次要结果包括 ST 和身体活动特征、主观结果和心血管风险因素的变化。研究采用了基线约束线性混合模型：参与者（23% 为女性；SIT LESS：n = 108，对照组：n = 104）的年龄为 63 ± 10 岁。与对照组相比，SIT LESS在CR后的ST下降幅度更大（-1.7（95% 置信区间（CI）：-2.0；-1.4）小时/天对-1.1（95% CI：-1.4；-0.8）小时/天，pinteraction=0.009），但在CR后3个月时没有下降（pinteraction=0.61）。此外，与对照组相比，CR 后 SIT LESS 的轻强度体力活动（LIPA）增加幅度更大（+ 1.4 (95% CI: +1.2; +1.6) 对 + 1.0 (95% CI: +0.8; +1.3) 小时/天，pinteraction=0.020）。其他次要结果的变化在各组之间没有差异：结论：SIT LESS 可短暂减少 ST 并增加 LIPA，但在 CR 后 3 个月，组间差异不再显著。这些发现凸显了在没有任何持续支持的情况下诱导 CAD 患者发生可持续行为改变所面临的挑战：试验注册：荷兰试验注册：试验注册：荷兰试验注册：NL9263。注册日期：2021 年 2 月 24 日。
A cardiac-rehab behaviour intervention to reduce sedentary time in coronary artery disease patients: the SIT LESS randomized controlled trial.
Background: High sedentary times (ST) is highly prevalent in patients with coronary artery disease (CAD), highlighting the need for behavioural change interventions that effectively reduce ST. We examined the immediate and medium-term effect of the SIT LESS intervention on changes in ST among CAD patients enrolled in cardiac rehabilitation (CR).
Methods: CAD patients participating in CR at 2 regional hospitals were included in this randomized controlled trial (1:1, stratified for gender and hospital). The control group received CR, whereas SIT LESS participants additionally received a 12-week hybrid behaviour change intervention. The primary outcome was the change in accelerometer-derived ST from pre-CR to post-CR and 3 months post-CR. Secondary outcomes included changes in ST and physical activity characteristics, subjective outcomes, and cardiovascular risk factors. A baseline constrained linear mixed-model was used.
Results: Participants (23% female; SIT LESS: n = 108, control: n = 104) were 63 ± 10 years. Greater ST reductions were found for SIT LESS compared to control post-CR (-1.7 (95% confidence interval (CI): -2.0; -1.4) versus - 1.1 (95% CI: -1.4; -0.8) h/day, pinteraction=0.009), but not at 3 months post-CR (pinteraction=0.61). Besides, larger light-intensity physical activity (LIPA) increases were found for SIT LESS compared to control post-CR (+ 1.4 (95% CI: +1.2; +1.6) versus + 1.0 (95% CI: +0.8; +1.3) h/day, pinteraction=0.020). Changes in other secondary outcomes did not differ among groups.
Conclusion: SIT LESS transiently reduced ST and increased LIPA, but group differences were no longer significant 3 months post-CR. These findings highlight the challenge to induce sustainable behaviour changes in CAD patients without any continued support.
期刊介绍：
International Journal of Behavioral Nutrition and Physical Activity (IJBNPA) is an open access, peer-reviewed journal offering high quality articles, rapid publication and wide diffusion in the public domain.
IJBNPA is devoted to furthering the understanding of the behavioral aspects of diet and physical activity and is unique in its inclusion of multiple levels of analysis, including populations, groups and individuals and its inclusion of epidemiology, and behavioral, theoretical and measurement research areas.
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