@文章{info:doi/10.2196/36275，作者="Horne, Maria and Hardy, Maryann and Murrells, Trevor and Ugail, Hassan and Hill, Andrew John"，标题="使用个性化头像作为成人减肥管理计划的辅助:随机对照可行性研究"，期刊="JMIR Form Res"，年="2022"，月="10"，日="5"，卷="6"，数="10"，页="e36275"，关键词="头像;可行性;肥胖;减肥;背景:肥胖是一个全球性的公共健康问题。干预措施主要依靠管理饮食摄入量和增加体育活动;然而，持续坚持行为疗法往往是糟糕的。缺乏持续的动力、自我效能感和对行为方案的不坚持是公认的成功减肥的障碍。基于阿凡达的干预通过促进更积极的参与，在慢性疾病的管理中实现更好的患者结果。自我的虚拟表现可以影响现实世界的行为，作为持续减肥行为的催化剂。 Objective: We evaluated whether a personalized avatar, offered as an adjunct to an established weight loss program, can increase participant motivation, sustain engagement, optimize service delivery, and improve participant health outcomes. Methods: A feasibility randomized design was used to determine the case for future development and evaluation of avatar-based technology in a randomized controlled trial. Participants were recruited from general practitioner referrals to a 12-week National Health Service weight improvement program. The main outcome measure was weight loss. Secondary outcome measures were quality-of-life and self-efficacy. Quantitative data were subjected to descriptive statistical tests and exploratory comparison between intervention and control arms. Feasibility and acceptability were assessed through interviews and analyzed using framework approach. Health Research Authority ethics approval was granted. Results: Overall, 10 men (n=7, 70{\%} for routine care and avatar and n=3, 30{\%} for routine care) and 33 women (n=23, 70{\%} for intervention and n=10, 30{\%} for routine care) were recruited. Participants' initial mean weight was greater in the intervention arm than in the routine care arm (126.3 kg vs 122.9 kg); pattern of weight loss was similar across both arms of the study in T0 to T1 period but accelerated in T1 to T2 period for intervention participants, suggesting that access to the self-resembling avatar may promote greater engagement with weight loss initiatives in the short-to-medium term. Mean change in participants' weight from T0 to T2 was 4.5 kg (95{\%} CI 2.7-6.3) in the routine care arm and 5.3 kg (95{\%} CI 3.9-6.8) in the intervention arm. Quality-of-life and self-efficacy measures demonstrated greater improvement in the intervention arm at both T1 (105.5 for routine care arm and 99.7 for intervention arm) and T2 (100.1 for routine care arm and 81.2 for intervention arm). Overall, 13 participants (n=11, 85{\%} women and n=2, 15{\%} men) and two health care professionals were interviewed about their experience of using the avatar program. Conclusions: Participants found using the personalized avatar acceptable, and feedback reiterated that seeing a future self helped to reinforce motivation to change behavior. This feasibility study demonstrated that avatar-based technology may successfully promote engagement and motivation in weight loss programs, enabling participants to achieve greater weight loss gains and build self-confidence. Trial Registration: ISRCTN Registry 17953876; https://doi.org/10.1186/ISRCTN17953876 ", issn="2561-326X", doi="10.2196/36275", url="https://formative.www.mybigtv.com/2022/10/e36275", url="https://doi.org/10.2196/36275", url="http://www.ncbi.nlm.nih.gov/pubmed/36197703" }