段彦杰，梁艳萍，王伟，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王艳萍，王志华，王柏瑞，朱连，Steven PY - 2022 DA - 2022/1/26 TI -网络干预对促进中国大学生体育锻炼和果蔬消费的有效性:混合方法研究基于网络的干预方法体力活动基于网络的干预方法果蔬消费基于网络的干预方法健康行动过程方法混合方法定量研究基于网络的多种健康行为改变(MHBC)干预似乎是一种有希望改变不健康习惯的方法。在促进中国大学生体育活动(PA)和果蔬消费(FVC)方面，有限的研究验证了这一假设。此外，需要解决MHBC干预措施交付的时间和组成部分的顺序。目的:本研究旨在检验两种连续8周的基于网络的干预措施对身体活动、FVC和健康相关结果(BMI、抑郁和生活质量)的有效性，以及两种连续交付模式之间干预效果的差异。该研究还旨在探讨参与者参与健康计划的经历。方法:采用随机对照试验，将552名符合条件的大学生(平均19.99人，SD 1.04岁，322/552,58.3%为女性)随机分为3组:PA优先组(PA治疗4周，FVC干预4周)、FVC优先组(FVC治疗4周，PA干预4周)和对照组(8周与PA和FVC无关的安慰剂治疗)。两个干预组的治疗内容根据健康行动过程方法(HAPA)框架设计。总共进行了四项基于网络的评估:基线时(T1, n=565)， 4周后(T2，第一次行为干预后，n=486)， 8周后(T3，第二次行为干预后，n=420)， 12周后(T4，干预后1个月随访，n=348)。此外，在完成整个8周的干预后，18名完成整个计划的参与者(平均19.56，标准差1.04年，10/18,56%为女性)立即被邀请参加一对一和面对面的半结构化访谈。 The entire study was conducted during the fall semester of 2017. Results: The quantitative data supported superior effects on physical activity, FVC, and BMI in the 2 sequential intervention groups compared with the control group. There were no significant differences in physical activity, FVC, and health-related outcomes between the 2 intervention groups after 8 weeks. The FVC-first group contributed to more maintenance of FVC compared with the PA-first group after 12 weeks. Four major themes with several subthemes were identified in the qualitative thematic analysis: PA and FVC behavior, health-related outcomes, correlates of behavior change, and contamination detection. Conclusions: This study provides empirical evidence for the effectiveness of sequentially delivered, web-based MHBC interventions on PA and FVC among Chinese college students. The timing issue of MHBC intervention delivery was preliminarily addressed. Qualitative findings provide an in-depth understanding and supplement the quantitative findings. Overall, this study may contribute considerably to future web-based MHBC interventions. Trial Registration: ClinicalTrials.gov NCT03627949; https://clinicaltrials.gov/ct2/show/NCT03627949 International Registered Report Identifier (IRRID): RR2-10.1186/s12889-019-7438-1 SN - 1438-8871 UR - //www.mybigtv.com/2022/1/e30566 UR - https://doi.org/10.2196/30566 UR - http://www.ncbi.nlm.nih.gov/pubmed/35080497 DO - 10.2196/30566 ID - info:doi/10.2196/30566 ER -