Gorin A A, Wing R R, Fava J L, Jakicic J M, Jeffery R, West D S, Brelje K, Dilillo V G
Department of Psychology, Center for Health, Intervention and Prevention, University of Connecticut, Storrs, CT, USA.
Int J Obes (Lond). 2008 Nov;32(11):1678-84. doi: 10.1038/ijo.2008.150. Epub 2008 Sep 2.
To examine whether a weight loss program delivered to one spouse has beneficial effects on the untreated spouse and the home environment.
We assessed untreated spouses of participants in three sites of Look AHEAD, a multicenter randomized controlled trial evaluating the impact of intentional weight loss on cardiovascular outcomes in overweight individuals with type 2 diabetes. Participants and spouses (n=357 pairs) were weighed and completed measures of diet and physical activity at 0 and 12 months. Spouses completed household food and exercise environment inventories. We examined differences between spouses of participants assigned to the intensive lifestyle intervention (ILI) or to the enhanced usual care (DSE; diabetes support and education).
Spouses of ILI participants lost -2.2+/-4.5 kg vs -0.2+/-3.3 kg in spouses of DSE participants (P<0.001). In addition, more ILI spouses lost > or =5% of their body weight than DSE spouses (26 vs 9%, P<0.001). Spouses of ILI participants also had greater reductions in reported energy intake (P=0.007) and percent of energy from fat (P=0.012) than DSE spouses. Spouse weight loss was associated with participant weight loss (P<0.001) and decreases in high-fat foods in the home (P=0.05).
The reach of behavioral weight loss treatment can extend to a spouse, suggesting that social networks can be utilized to promote the spread of weight loss, thus creating a ripple effect.
研究针对一方配偶实施的减肥计划是否对未接受治疗的配偶及家庭环境产生有益影响。
我们评估了“展望未来”（Look AHEAD）多中心随机对照试验中三个地点参与者的未接受治疗的配偶，该试验评估了有意减肥对超重2型糖尿病患者心血管结局的影响。在0个月和12个月时对参与者及其配偶（n = 357对）进行称重，并完成饮食和身体活动测量。配偶完成家庭食物和运动环境清单。我们比较了被分配到强化生活方式干预（ILI）组或强化常规护理（DSE；糖尿病支持与教育）组的参与者的配偶之间的差异。
ILI组参与者的配偶体重减轻了-2.2±4.5千克，而DSE组参与者的配偶体重减轻了-0.2±3.3千克（P<0.001）。此外，ILI组中体重减轻≥5%的配偶比DSE组更多（26%对9%，P<0.001）。ILI组参与者的配偶报告的能量摄入减少幅度（P = 0.007）和脂肪供能百分比减少幅度（P = 0.012）也大于DSE组的配偶。配偶体重减轻与参与者体重减轻相关（P<0.001），且与家中高脂肪食物减少相关（P = 0.05）。
行为减肥治疗的影响范围可以扩展到配偶，这表明可以利用社交网络来促进减肥的传播，从而产生连锁反应。
