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.

中文翻译：

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典型和挑战性喂养中的吸吮行为与足月婴儿出生至 4 个月体重增加的关​​系


吸吮行为被描述为肥胖风险标志。尚未将响应挑战的吸吮行为作为婴儿体重增加的前瞻性预测因素。健康足月婴儿在 2 周和/或 2 个月大时，通过吸吮压力测量装置在两种喂养条件下评估吸吮行为：标准喂养期间和使用更具挑战性的乳头喂养期间。在 2 周、2 个月和 4 个月时测量体重和身长，并计算体重身长 z 得分 (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，挑战性喂养与典型喂养在消耗量（54.1 克与 65.6 克，p < .05）、最大吸吮压力（121.3 毫米汞柱与99.2 mmHg，p < .05)，平均爆发持续时间（17.5 秒与 28.4 秒，p < .05），以及进食持续时间（18.51 分钟与 13.89 分钟，p < .01）。在具有挑战性但非典型的喂养中消耗的克数，根据年龄和自上次喂养以来的时间进行调整，预测从测量时到 4 个月龄的 WLZ 变化率（r = 0.46，对于具有挑战性的 p = .013，r = - 0.07，p = .702（典型值）。吸吮更具挑战性的乳头会改变足月婴儿的吸吮行为和摄入量。当乳头更具挑战性时摄入更多的婴儿的预期体重增加会更大。这种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更愿意为食物而努力，这是已知的肥胖危险因素。