Binyu Zhao,1,2 Shunmin Zhang,3 Wei Zhang,4 Sufen Zheng,5 Yujia Fu,1,2 Qiwei Wu,1,2 Xianhong Huang,6 Jing Shao1,2 

1Department of Nursing, The Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, Zhejiang, People’s Republic of China; 2Institute of Nursing Research, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People’s Republic of China; 3Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou, Zhejiang, People’s Republic of China; 4Clinical Trial Unit, Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang, People’s Republic of China; 5Department of Nursing, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China; 6Department of Health Policy and Management, Hangzhou Normal University School of Public Administration, Hangzhou, Zhejiang, People’s Republic of China

Correspondence: Jing Shao, Department of Nursing, The Fourth Affiliated Hospital of School of Medicine, International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, People’s Republic of China, Tel +86 15858236985, Email 11318202@zju.edu.cn
背景

结果体验是肥胖患者身体活动参与和维持的重要决定性因素，但其影响机制仍待勘明。本研究旨在探讨成长型思维、自我控制策略在结果体验和身体活动中的链式中介作用。

方法

采用横断面分层抽样法选取209名肥胖患者。采用逻辑回归、结构方程模型、系统动力学进行统计分析。

结果

中介效应分析结果显示，结果体验和身体活动呈显著相关(β = 0.247, P < 0.01)；成长型思维对身体活动的中介效应显著(中介效应=0.055, 95% CI [0.034, 0.122])；自我控制策略对身体活动的中介效应无显著统计学意义(中介效应 = 0.011, 95% CI [-0.027, 0.059])；成长型思维和自我控制策略的链式中介效应显著(中介效应 = 0.011, 95% CI [0.004, 0.038])。该模型中介效应值总和占总效应的23.77%。基于系统动力学的仿真干预结果表明，提升成长型思维和自我控制策略的水平，可独立或协同增强身体活动参与的长期趋势。

结论