Center for Human Growth and Development, University of Michigan, Ann Arbor, MI, USA; Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA.
Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA.
Appetite. 2020 Oct 1;153:104745. doi: 10.1016/j.appet.2020.104745. Epub 2020 May 18.
Sucking behavior has been described as an obesity risk marker. Sucking behavior in response to challenge has not been examined as a prospective predictor of infant weight gain. Healthy, full term infants had sucking behavior assessed at ages 2 weeks and/or 2 months via a sucking pressure measurement device in two feeding conditions: during a standard feeding and during a feeding with a more challenging nipple. Weight and length were measured at 2 weeks, 2 months, and 4 months and weight-for-length z-score (WLZ) calculated. Among 45 full term infants, adjusted for age at measurement and time since last feeding, the challenging versus typical feedings differed with regard to amount consumed (54.1g vs. 65.6g, p < .05), maximum sucking pressure (121.3 mmHg vs. 99.2 mmHg, p < .05), mean burst duration (17.5s vs. 28.4s, p < .05), and feeding duration (18.51 min vs. 13.89 min, p < .01). Grams consumed in the challenging, but not typical, feeding, adjusted for age and time since last feeding, predicted rate of change in WLZ from time of measurement to age 4 months (r = 0.46, p = .013 for challenging, r = -0.07, p = .702 for typical). Nipples that are more challenging to suck from change the sucking behavior and intake among full term infants. Infants who consume more when the nipple is more challenging have greater prospective weight gain. This persistent sucking behavior in the face of challenge may reflect that a greater willingness to work for food, a known obesity risk factor, is detectable in early infancy.
吸吮行为一直被描述为肥胖的风险标志物。对于吸吮行为作为婴儿体重增加的前瞻性预测指标，目前还没有研究。本研究通过吸吮压力测量装置，在两种喂养条件下（标准喂养和更具挑战性的奶嘴喂养），评估了健康、足月的婴儿在 2 周和/或 2 个月时的吸吮行为：健康、足月的婴儿在 2 周和/或 2 个月时，在两种喂养条件下（标准喂养和更具挑战性的奶嘴喂养）评估了吸吮行为，使用吸吮压力测量装置。在 2 周、2 个月和 4 个月时测量体重和长度，并计算体重-长度 z 评分（WLZ）。在 45 名足月婴儿中，根据测量时的年龄和上次喂养后的时间进行调整后，与典型喂养相比，挑战性喂养在以下方面存在差异：摄入量（54.1g 与 65.6g，p<.05）、最大吸吮压力（121.3mmHg 与 99.2mmHg，p<.05）、平均爆发持续时间（17.5s 与 28.4s，p<.05）和喂养持续时间（18.51min 与 13.89min，p<.01）。在调整了年龄和上次喂养后时间的情况下，挑战性喂养中的摄入量，但不是典型喂养中的摄入量，可预测从测量时间到 4 个月龄时 WLZ 的变化率（挑战性喂养 r=0.46，p=0.013；典型喂养 r=-0.07，p=0.702）。从吸吮角度来看，更具挑战性的奶嘴会改变足月婴儿的吸吮行为和摄入量。当奶嘴更具挑战性时，婴儿摄入更多，预期体重增加更大。这种在面对挑战时持续的吸吮行为可能反映出，在婴儿早期就可以检测到一种更大的获取食物的意愿，而这是一个已知的肥胖风险因素。
