Exercise FITT-V during pregnancy: Association with birth outcomes

IF 1.6 4区医学 Q4 DEVELOPMENTAL BIOLOGY Birth Defects Research Pub Date : 2024-04-24 DOI:10.1002/bdr2.2340

Alex Claiborne, Breanna Wisseman, Kara Kern, Dylan Steen, Filip Jevtovic, Samantha McDonald, Cody Strom, Edward Newton, Christy Isler, James Devente, Steven Mouro, David Collier, Devon Kuehn, George A. Kelley, Linda E. May

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Abstract

Background

Prenatal exercise improves birth outcomes, but research into exercise dose–response effects is limited.

Methods

This study is a retrospective, secondary analysis of pooled data from three blinded, prospective, randomized controlled trials. Prenatal exercise frequency, intensity, type, time, and volume (FITT-V) were assessed in supervised sessions throughout pregnancy. Gestational age (GA), neonatal resting heart rate (rHR), morphometrics (body circumferences, weight-to-length and ponderal index) Apgar and reflex scores, and placental measures were obtained at birth. Stepwise regressions and Pearson correlations determined associations between FITT-V and birth outcomes.

Results

Prenatal exercise frequency reduces ponderal index (R² = 0.15, F = 2.76, p = .05) and increased total number of reflexes present at birth (R² = 0.24, F = 7.89, p < .001), while exercise intensity was related to greater gestational age and birth length (R² = 0.08, F = 3.14; R² = 0.12, F = 3.86, respectively; both p = .04); exercise weekly volume was associated with shorter hospital stay (R² = 0.24, F = 4.73, p = .01). Furthermore, exercise type was associated with placenta size (R² = 0.47, F = 3.51, p = .01).

Conclusions

Prenatal exercise is positively related to birth and placental outcomes in a dose-dependent manner.

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孕期 FITT-V 运动：与分娩结果的关系

背景产前运动可改善分娩结局，但有关运动剂量反应效应的研究却很有限。方法本研究是对三项盲法前瞻性随机对照试验汇总数据的回顾性二次分析。产前运动频率、强度、类型、时间和运动量（FITT-V）在整个孕期的监督课程中进行评估。新生儿出生时的妊娠年龄（GA）、新生儿静息心率（rHR）、形态测量（体围、体重身长比和腹围指数）、Apgar评分和反射评分以及胎盘测量结果均已获得。逐步回归和皮尔逊相关性确定了 FITT-V 与分娩结果之间的关系。结果产前运动频率降低了深静脉指数（R2 = 0.15，F = 2.76，p = .05），增加了出生时出现的反射总数（R2 = 0.24，F = 7.89，p < .001），而运动强度与胎龄和出生时长有关（分别为 R2 = 0.08，F = 3.14；R2 = 0.12，F = 3.86；均 p = .04）；每周运动量与住院时间缩短有关（R2 = 0.24，F = 4.73，p = .01）。此外，运动类型与胎盘大小相关（R2 = 0.47，F = 3.51，p = .01）。结论产前锻炼以剂量依赖的方式与分娩和胎盘结局呈正相关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Birth Defects Research Medicine-Embryology

CiteScore

3.60

自引率

9.50%

发文量

153

期刊介绍： The journal Birth Defects Research publishes original research and reviews in areas related to the etiology of adverse developmental and reproductive outcome. In particular the journal is devoted to the publication of original scientific research that contributes to the understanding of the biology of embryonic development and the prenatal causative factors and mechanisms leading to adverse pregnancy outcomes, namely structural and functional birth defects, pregnancy loss, postnatal functional defects in the human population, and to the identification of prenatal factors and biological mechanisms that reduce these risks. Adverse reproductive and developmental outcomes may have genetic, environmental, nutritional or epigenetic causes. Accordingly, the journal Birth Defects Research takes an integrated, multidisciplinary approach in its organization and publication strategy. The journal Birth Defects Research contains separate sections for clinical and molecular teratology, developmental and reproductive toxicology, and reviews in developmental biology to acknowledge and accommodate the integrative nature of research in this field. Each section has a dedicated editor who is a leader in his/her field and who has full editorial authority in his/her area.