Regular Maternal Exercise Dose and Fetal Heart Outcome

May, Linda E.; Suminski, Richard R.; Langaker, M. D.; Yeh, Hung‐Wen; Gustafson, Kathleen M.

doi:10.1249/mss.0b013e318247b324

Cited by 60 publications

(76 citation statements)

References 38 publications

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“…Specifically, the intervention designed from the formative research reported here can be used to inform how physical activity messaging is incorporated into Text4-baby in the future. The current Text4baby curriculum has limited SMS about physical activity, and because the evidence supporting participation in physical activity as part of a healthy pregnancy is ample [1][2][3][4][5][6][7][8][9][10][11][12], there is a need to modify standard Text4baby physical activity SMS in light of these findings.…”

Section: Original Researchmentioning

confidence: 99%

“…For the mother, benefits may include weight control [4] and reduced risk of early delivery and gestational diabetes [2,3,[5][6][7], and for the fetus, benefits may include improved stress tolerance and a decrease in resting fetal heart rate [8][9][10][11][12]. Despite these benefits, only 15.8 % of pregnant women (as compared to 26 % of non-pregnant women) achieve recommendations for physical activity [6,13,14] (i.e., meeting physical activity recommendations of 150 min of moderate intensity activity per week) [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Development and design of an intervention to improve physical activity in pregnant women using Text4baby

Huberty

Rowedder

Hekler

et al. 2015

Behav. Med. Pract. Policy Res.

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Text4baby is a free, mobile health information service for pregnant and post-partum women. This study aims to understand preferences of physical activity text messages (SMS), sequentially develop prototype SMS, and determine preferred dose of SMS to inform a future study utilizing Text4baby. This study had a user-centered design with three phases: (1) literature review and interviews with pregnant women for development of prototype SMS, (2) interviews with health care professionals and pregnant women for prototype SMS feedback, and (3) survey to determine preferred dose of SMS. Data from interviews identified knowledge and support as major themes. Prototypes were developed (N=14) and informed 168 SMS. Pregnant women (N=326) thought three SMS/week were about right (50.2 %) and preferred three SMS/week throughout pregnancy (71.9 %). There is a need for opportunities for behavioral scientists to incorporate evidence-based practices within scalable interventions. As such, this research will inform utilization of Text4-baby to potentially improve physical activity participation.

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Section: Original Researchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development and design of an intervention to improve physical activity in pregnant women using Text4baby

Huberty

Rowedder

Hekler

et al. 2015

Behav. Med. Pract. Policy Res.

View full text Add to dashboard Cite

show abstract

“…The fetal heart adapts similar to the adult heart when exposed to exercise training. For example, fetuses of exercising women had improved cardiovascular autonomic control indicated by decreased heart rates and increased HRV, relative to those of non-exercisers [10,13]. Further analysis demonstrated a dose-response relationship, indicating that an increase in maternal exercise intensity and time spent participating in physical activity results in a greater fetal cardiovascular adaptation (i.e.…”

Section: Introductionmentioning

confidence: 96%

“…The effects of aerobic exercise on maternal health have been long understood, with the body of research indicating the safety and efficacy of maternal exercise training regarding fetal and neonatal health is growing [1][2][3][4][5][6][7][8][9][10][11][12][13]. The fetus is not at risk of hypoxia or significant bradycardia during maternal exercise [4,9,[14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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Influence of exercise mode on pregnancy outcomes: ENHANCED by Mom project

Moyer

Livingston²,

Fang³

et al. 2015

BMC Pregnancy Childbirth

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Background: The extent of the benefits of exercise training during pregnancy on maternal, fetal, and neonatal health outcomes has not been sufficiently addressed. While aerobic exercise training has been determined as safe and efficacious throughout pregnancy, the effects of other training modes on fetal health and development as well as any continued benefits for the neonate, especially with regards to cardiovascular development and function, is largely unknown. In the ENHANCED by Mom study we aim to determine the effects of different modes of exercise training (aerobic, circuit, and resistance) throughout pregnancy on childhood health by controlling individual exercise programs and assessing the effects of each on fetal and neonatal health adaptations. Methods/Design: ENHANCED by mom is a cross sectional comparison study utilizing 3 intervention groups in comparison to a control group. Participants will complete three 5 min warmup + 45 min sessions weekly from 16 weeks to 36 weeks gestation of aerobic, resistance, or circuit training, in comparison to non-exercising controls. Maternal physical measurements will occur every 4 weeks throughout the intervention period. Fetal morphometric and heart measurements will occur at 34 weeks gestation. Neonatal measurements will be acquired at birth and at 1 month, 6 months, and 12 months. Discussion: A better understanding on the effects of exercise training during pregnancy on fetal and neonatal health could have a profound impact on the prevention and development of chronic diseases such as obesity, hypertension, and diabetes.

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A narrative review of exercise dose during pregnancy

Claiborne,

Jevtovic,

May

2023

Birth Defects Research

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The current recommendations for prenatal exercise dose align with those from the American College of Sports Medicine; 150 min of moderate intensity every week of pregnancy. However, recent works suggest there may be a dose‐dependent beneficial effect for mother and offspring; maternal and offspring health outcomes respond differently to low, medium, and high doses of prenatal exercise. It is, therefore, our aim to summarize the published evidence (years 1950–2023) for five metrics of prenatal exercise training commonly reported, that is, “FITT‐V”: Frequency (number of sessions), Intensity (metabolic equivalents “METs”), Time (duration of sessions), Type (exercise mode), Volume (exercise MET*mins). The target audience includes clinicians and health care professionals, as well as exercise professionals and physiologists. Data suggest that moderate exercise frequency (3–4 times weekly) appears safe and efficacious for mother and offspring, while there is contradictory evidence for the safety and further benefit of increased frequency beyond 5 sessions per week. Moderate (3–6 METs) and vigorous (>6 METs) intensity prenatal exercise have been shown to promote maternal and offspring health, while little research has been performed on low‐intensity (<3 METs) exercise. Exercise sessions lasting less than 1 hr are safe for mother and fetus, while longer‐duration exercise should be carefully considered and monitored. Taken together, aerobic, resistance, or a combination of exercise types is well tolerated at medium‐to‐high volumes and offers a variety of type‐specific benefits. Still, research is needed to define (1) the “minimum” effective dose of exercise for mother and offspring health, as well as (2) the maximum tolerable dose from which more benefits may be seen. Additionally, there is a lack of randomized controlled trials addressing exercise doses during the three trimesters of pregnancy. Further, the protocols adopted in research studies should be more standardized and tested for efficacy in different populations of gravid women.

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Regular Maternal Exercise Dose and Fetal Heart Outcome

Abstract: Maternal physical activity dose during the third trimester is associated with resting fetal heart effects similar to a trained response. Future studies on the health benefits of this fetal response are highly warranted.

Cited by 60 publications

References 38 publications

Development and design of an intervention to improve physical activity in pregnant women using Text4baby

Development and design of an intervention to improve physical activity in pregnant women using Text4baby

Influence of exercise mode on pregnancy outcomes: ENHANCED by Mom project

A narrative review of exercise dose during pregnancy

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