在一项为期两年的行为减肥试验中，享乐性饥饿与 BMI 之间的关联。
Associations between hedonic hunger and BMI during a two-year behavioural weight loss trial.
机构信息
Department of Psychology, University of Liverpool, Liverpool, United Kingdom.
Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom.
出版信息
PLoS One. 2021 Jun 9;16(6):e0252110. doi: 10.1371/journal.pone.0252110. eCollection 2021.
OBJECTIVE
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.
METHODS
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.
RESULTS
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).
CONCLUSION
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.
目的
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。
方法
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。
结果
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）。
结论
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。
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