The inability to produce sustainable lifestyle modifications (e.g., physical activity, healthy diet) remains a major barrier to reducing morbidity and mortality from prevalent, preventable conditions. The objective of this paper is to present a model that builds on and extends foundational theory and research to suggest novel approaches that may help to produce lasting behaviour change. The model aims to integrate factors not typically examined together in order to elucidate potential processes underlying a shift from behaviour initiation to long-term maintenance. The central premise of the Maintain IT model builds on approaches demonstrating that in-tact executive function (EF) is critical for health behaviour initiation, for more complex behaviours beyond initiation, and in unsupportive environments and circumstances, but successful recruitment of EF is effortful and prone to error. Enduring changes are more likely if the underlying cognitive processes can become less effortful (non-conscious, automatic). The Maintain IT model posits that a centred identity transformation is one path leading to less effortful processing and facilitating successful recruitment of EF when necessary over the long term, increasing the sustainability of health behaviour change. A conceptual overview of the literature supporting the utility of this integrative model, future directions, and anticipated challenges are presented.

无法进行可持续的生活方式改变（例如身体活动、健康饮食）仍然是降低流行的、可预防疾病的发病率和死亡率的主要障碍。本文的目的是提出一个模型，该模型建立并扩展了基础理论和研究，以提出可能有助于产生持久行为改变的新方法。该模型旨在整合通常不一起检查的因素，以阐明从行为启动到长期维持转变的潜在过程。维护 IT 模型的核心前提建立在证明完整的执行功能(EF) 对于健康行为启动、启动后更复杂的行为以及在不支持的环境和情况下至关重要的方法之上，但成功地招募 EF 需要付出努力和努力。容易出错。如果潜在的认知过程可以变得不那么费力（无意识、自动），那么持久的变化就更有可能发生。维护 IT 模型认为，以中心为中心的身份转型是一种减少处理工作量的途径，并在长期需要时促进 EF 的成功招募，从而提高健康行为改变的可持续性。提出了支持这种综合模型的实用性、未来方向和预期挑战的文献的概念性概述。