Institute for Resilient Regions, University of Southern Queensland, Springfield Central, QLD 4300, Australia.
Baker Heart and Diabetes Institute, Melbourne, VIC 3004, Australia.
Int J Environ Res Public Health. 2019 Nov 27;16(23):4762. doi: 10.3390/ijerph16234762.
The development in research concerning sedentary behaviour has been rapid over the past two decades. This has led to the development of evidence and views that have become more advanced, diverse and, possibly, contentious. These include the effects of standing, the breaking up of prolonged sitting and the role of moderate-to-vigorous physical activity (MVPA) in the association between sedentary behaviour and health outcomes. The present aim is to report the views of experts (n = 21) brought together (one-day face-to-face meeting in 2018) to consider these issues and provide conclusions and recommendations for future work. Each topic was reviewed and presented by one expert followed by full group discussion, which was recorded, transcribed and analysed. The experts concluded that (a). standing may bring benefits that accrue from postural shifts. Prolonged (mainly static) standing and prolonged sitting are both bad for health; (b). 'the best posture is the next posture'. Regularly breaking up of sitting with postural shifts and movement is vital; (c). health effects of prolonged sitting are evident even after controlling for MVPA, but high levels of MVPA can attenuate the deleterious effects of prolonged sitting depending on the health outcome of interest. Expert discussion addressed measurement, messaging and future directions.
过去二十年里，关于久坐行为的研究发展迅速。这使得相关证据和观点变得更加先进、多样化，可能也更具争议性。这些证据和观点包括站立的影响、长时间坐着的打断以及中等到剧烈强度的身体活动（MVPA）在久坐行为与健康结果之间的关联中的作用。本研究旨在报告专家的观点（n=21），这些专家聚集在一起（2018 年进行了为期一天的面对面会议），共同讨论这些问题，并为未来的工作提供结论和建议。每个主题都由一位专家进行审查和介绍，然后进行全体小组讨论，讨论内容被记录、转录和分析。专家们得出以下结论：（a）站立可能会带来因姿势改变而带来的益处。长时间（主要是静态）站立和长时间坐着都对健康有害；（b）“最好的姿势是下一个姿势”。经常通过姿势改变和运动来打断坐着的时间是至关重要的；（c）即使在控制了 MVPA 之后，长时间坐着对健康的影响也是明显的，但高水平的 MVPA 可以根据感兴趣的健康结果减轻长时间坐着的有害影响。专家讨论还涉及了测量、信息传递和未来方向。
