NEONATAL MORPHOMETRICS AFTER ENDURANCE EXERCISE DURING PREGNANCY
NEONATAL MORPHOMETRICS AFTER ENDURANCE EXERCISE DURING PREGNANCY
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DOI：
10.1016/0002-9378(90)90754-u
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发表时间：
1990-12-01
影响因子：
9.8
通讯作者：
CAPELESS, EL
中科院分区：
文献类型：
--
作者：
CLAPP, JF;CAPELESS, EL
本研究旨在验证一个假设，即在怀孕后期持续定期跑步和/或有氧运动计划在或超过50%的孕前水平限制胎儿生长。 因此，详细的新生儿形态测量数据收集在两组的后代：77个条件良好的休闲跑步者和有氧舞蹈者，他们在整个怀孕期间继续他们的运动方案在或以上的50%的孕前水平和55个匹配的控制后，在足月分娩。 在受孕前和整个怀孕期间对日常运动表现进行定量。 在运动组的后代中观察到出生体重（-310 gm）、出生体重百分位数（-20）、体重指数（-0.24）、其百分位数（-30）和胎儿胎盘重量比（-0.7）显著降低，而两组的冠踵长度（51.4 cm）和头围（35.0）相似。 运动组后代的两个部位皮褶厚度（-1.5 mm）、皮褶百分位数（-30）、计算的体脂百分比（-5.0%）和脂肪量（-220 gm）的减少证实了生长受限的不对称模式，并表明新生儿脂肪量的差异可以解释约70%的出生体重差异。 在跑步者中，在1100克出生体重范围内，怀孕最后5个月的运动表现的相对水平解释了出生体重变异的40%。 我们的结论是，在怀孕后期持续进行常规的有氧运动或跑步计划，达到或超过最低训练水平，会导致生长受限的不对称模式，主要影响新生儿脂肪量。
This study was designed to test the hypothesis that continuation of a regular running and/or aerobics program during late pregnancy at or above 50% of preconceptional levels limits fetal growth. Accordingly, detailed neonatal morphometric data were gathered in the offspring of two groups: 77 well-conditioned recreational runners and aerobic dancers who were delivered at term after continuing their exercise regimen at or above 50% of the preconceptional level throughout pregnancy and 55 matched controls. Daily exercise performance was quantitated before conception and throughout pregnancy. Significant reductions in birth weight (-310 gm), birth weight percentile (-20), ponderal index (-0.24), its percentile (-30), and the fetoplacental weight ratio (-0.7) were seen in the offspring of the exercise group whereas crown-heel length (51.4 cm) and head circumference (35.0) were similar in the two groups. Reductions in two-site skin-fold thickness (-1.5 mm), skin-fold percentile (-30), calculated percent body fat (-5.0%), and fat mass (-220 gm) in the offspring of the exercise group confirmed the asymmetric pattern of growth restriction and indicated that approximately 70% of the difference in birth weight could be explained by the difference in neonatal fat mass. In runners, the relative level of exercise performance in the last 5 months of pregnancy explained 40% of the variability in birth weight over an 1100 gm birth weight range. We conclude that continuation of a regular aerobic or running program at or above a minimal training level during late pregnancy results in an asymmetric pattern of growth restriction that primarily impacts on neonatal fat mass.