Department of Psychology, University of Liverpool, Liverpool, United Kingdom.
Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom.
PLoS One. 2021 Jun 9;16(6):e0252110. doi: 10.1371/journal.pone.0252110. eCollection 2021.
Prospective studies on relationships between hedonic hunger and BMI (Body Mass Index) during weight management are lacking. This study examined if hedonic hunger reduced during a behavioural weight management programme, and if hedonic hunger predicted future BMI.
Participants were 594 community-dwelling, UK-based adults(396 female; age 56.43 years, s.d. = 12.50, range 20-83 years); 490 participants (82.5%) had obesity. Participants were randomised to a 12- or 52-week behavioural weight management intervention (WW12 or WW52, respectively) or a brief self-help intervention (BI). Relationships between hedonic hunger and BMI over 24 months (baseline, 3, 12, 24 months) were analysed using an autoregressive cross-lagged model.
Hedonic hunger scores decreased from 2.71 (s.d. = .91) at baseline to 2.41 (s.d. = .88) at 3 months (p < .001, CI .22 to .38), remained reduced to 24 months, and were not affected by intervention arm at any time point (p's>.05). Baseline hedonic hunger scores predicted 3-month scores (B = .76, SE = .03, p < .001, CI .71 to .82), 3-month scores predicted 12-month scores (B = .76, SE = .03, p < .001 CI .72 to .80), and 12-month scores predicted 24-month scores (B = .72, SE = .03, p < .001, CI .64 to .77). Higher hedonic hunger at 3 months predicted higher BMI at 12 months (B = .04, SE = .02, p = .03, CI .01 to .07) but not at 24 months (p>.05). BMI at 12 months was lower in WW52 30.87kg/m2, s.d. = 5.02) than WW12 (32.12 kg/m2, s.d. = 5.58, p = .02, CI .16 to 2.34) and BI (32.74 kg/m2, s.d. = 4.15, p = .01, CI .30 to 3.45). BMI was not affected by intervention at any other time point (p's>.05).
Hedonic hunger reduced during weight management irrespective of intervention. Early reductions in hedonic hunger appear to be associated with lower BMI in the medium-term. Identifying ways to reduce hedonic hunger during weight loss could aid weight management for some people.
缺乏关于减肥期间享乐性饥饿与 BMI（体重指数）之间关系的前瞻性研究。本研究检验了在行为减肥计划中是否会降低享乐性饥饿，以及是否会预测未来的 BMI。
参与者为 594 名居住在英国的社区成年人（396 名女性；年龄 56.43 岁，标准差=12.50，范围 20-83 岁）；490 名参与者（82.5%）患有肥胖症。参与者被随机分配到 12 周或 52 周的行为减肥干预（WW12 或 WW52）或简短的自助干预（BI）。使用自回归交叉滞后模型分析 24 个月（基线、3、12、24 个月）期间享乐性饥饿和 BMI 之间的关系。
从基线时的 2.71（标准差=0.91）到 3 个月时的 2.41（标准差=0.88）（p<0.001，CI.22 至.38），享乐性饥饿评分降低，并且在 24 个月时仍未降低，并且在任何时间点都不受干预臂的影响（p>.05）。基线时的享乐性饥饿评分预测 3 个月时的评分（B=0.76，SE=0.03，p<0.001，CI.71 至.82），3 个月时的评分预测 12 个月时的评分（B=0.76，SE=0.03，p<0.001，CI.72 至.80），12 个月时的评分预测 24 个月时的评分（B=0.72，SE=0.03，p<0.001，CI.64 至.77）。3 个月时较高的享乐性饥饿评分预测 12 个月时较高的 BMI（B=0.04，SE=0.02，p=0.03，CI.01 至.07），但在 24 个月时则没有（p>.05）。WW52 组（30.87kg/m2，标准差=5.02）的 BMI 在 12 个月时低于 WW12 组（32.12kg/m2，标准差=5.58，p=0.02，CI.16 至 2.34）和 BI 组（32.74kg/m2，标准差=4.15，p=0.01，CI.30 至 3.45）。在任何其他时间点，BMI 均不受干预的影响（p>.05）。
在减肥期间，享乐性饥饿感会降低，而与干预无关。早期降低享乐性饥饿感似乎与中期较低的 BMI 有关。在减肥期间减少享乐性饥饿感可能有助于一些人进行体重管理。
