Department of Kinesiology and Public Health, California Polytechnic State University, San Luis Obispo, California, USA.
Center for Health Research, California Polytechnic State University, San Luis Obispo, California, USA.
Obesity (Silver Spring). 2019 May;27(5):733-739. doi: 10.1002/oby.22447. Epub 2019 Apr 8.
Weight-loss interventions have a positive "ripple effect" on untreated partners' weight, but ripple effects in pregnancy are unknown. The objective of this study was to determine whether prenatal lifestyle interventions that reduce gestational weight gain in pregnant women have a positive ripple effect on untreated partners' weight.
Two clinical trials with the same outcome measures randomly assigned pregnant women to a lifestyle intervention or usual care. Untreated partners were randomly assigned according to their pregnant partner's group allocation and were assessed at study entry (~13 weeks' gestation), 35 weeks' gestation, and 6 and 12 months after delivery.
A total of 122 partners (100% male, 23% Hispanic, 82% married, and 48% with obesity) were randomly assigned to the intervention (n = 59) or usual care (n = 63). There was no intervention or intervention-by-time interaction effect on partner weight (P = 0.795). Partner weight changes were not statistically significant (P = 0.120) from study entry to 35 weeks' gestation (mean 0.19 kg; 95% CI: -0.73 to 1.24) or to 12 months after delivery (mean 0.82 kg; 95% CI: -0.26 to 1.91).
There was no evidence of a ripple effect on partner weight. In a self-selected sample, partners of pregnant women appeared not to experience sympathy weight gain.
减肥干预措施对未接受治疗的伴侣的体重有积极的“连锁反应”，但妊娠期间的连锁反应尚不清楚。本研究的目的是确定是否可以通过减少孕妇体重增加的产前生活方式干预措施对未接受治疗的伴侣的体重产生积极的连锁反应。
两项具有相同结局指标的临床试验将孕妇随机分配到生活方式干预组或常规护理组。根据其孕妇伴侣的分组分配，对未接受治疗的伴侣进行随机分组，并在研究开始时（约 13 周妊娠）、35 周妊娠以及分娩后 6 个月和 12 个月进行评估。
共有 122 名伴侣（100%为男性，23%为西班牙裔，82%为已婚，48%为肥胖）被随机分配到干预组（n=59）或常规护理组（n=63）。对伴侣体重没有干预或干预与时间的相互作用效应（P=0.795）。从研究开始到 35 周妊娠时（平均体重增加 0.19 公斤；95%CI：-0.73 至 1.24）或分娩后 12 个月时（平均体重增加 0.82 公斤；95%CI：-0.26 至 1.91），伴侣体重的变化均无统计学意义（P=0.120）。
没有证据表明对伴侣体重有连锁反应。在一个自我选择的样本中，孕妇的伴侣似乎没有经历同情性体重增加。
