NCT03838146

Brief Summary

The American Heart Association suggests that heart disease prevention should target pregnancy and the first year of life; however, there is a fundamental gap in knowledge regarding the effects of prenatal exercise on the prevention of heart disease.\[1, 2\] Insulin resistance in skeletal muscle is believed to be a critical contributor to the metabolic syndrome which increases the risk for cardiovascular disease (CVD). Conversely, exercise improves insulin sensitivity and many other facets of skeletal muscle function and metabolism; however, it is unclear if this positive effect can be "imprinted" in the skeletal muscle of the fetus with maternal exercise and accordingly diminish CVD risk in offspring. Our previous studies found that exercise during pregnancy leads to improved heart measures and reduced adiposity.\[3-6\] These studies demonstrated the potential for maternal exercise to reduce risk for CVD, but the cellular mechanisms involved, however, are not clearly evident. The proposed project will fill this critical gap and assess the influence of maternal exercise intervention to "imprint" progenitor stem cells in the fetus (umbilical cord tissue) to develop into insulin sensitive skeletal muscle and also improve indices of infant morphometry and movement. Using a randomized design, 160 women will perform either exercise intervention (aerobic training, resistance training, or both) or usual care (controls). Infant cord tissue and blood will be sampled at birth while blood will be sampled at 1 month of age. Similarly, infant neuromotor and morphometric examinations will be performed at 1 month. and at 1-month of age via blood sample, neuromotor, and morphometric examinations. The rationale for the project is to elucidate the effects of maternal exercise on offspring health outcomes and determine specific metabolic targets predictive of offspring long-term disease risk. The investigators will test the central hypothesis that exercise during pregnancy alters skeletal muscle in a manner which decreases the risk of heart disease in offspring. To test this central hypothesis, the investigators will pursue two specific aims: Aim 1- Determine the ability of regular maternal exercise to imprint key myocellular metabolic (insulin sensitivity) properties of offspring mesenchymal stem cells (MSC), neuromotor function, and morphometry. Aim 2- Determine the distinct abilities of regular maternal exercise to imprint the metabolome of offspring MSC.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
167

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2018

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

November 5, 2018

Completed
3 months until next milestone

First Posted

Study publicly available on registry

February 12, 2019

Completed
4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 30, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 30, 2023

Completed
Last Updated

August 8, 2023

Status Verified

August 1, 2023

Enrollment Period

4.4 years

First QC Date

November 5, 2018

Last Update Submit

August 5, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Human Skeletal Muscles cells grown from MSCs will have insulin responsiveness measured

    Western blot analysis of Akt phosphorylation will be conducted on cell lysates from myotubes under basal or following insulin-stimulation. Glycogen synthesis will be measured under basal and insulin-stimulated conditions. Data will be presented as % change in glycogen synthesis following insulin stimulation.

    At Birth

Secondary Outcomes (4)

  • Global and targeted metabolomics analysis will be conducted to map out pathways and mechanisms from regular maternal exercise. Docosahexaenoic acid (DHA), Eicosapentaenoic Acid (EPA), Docosapentaenoic Acid (DPA), and Arachidonic acid (ARA).

    At 16 weeks and 36 weeks gestation

  • Peabody Developmental Motor Scales, 2nd edition (PDMS-2) will be performed by a pediatric physical therapist (blinded to group classification) to measure gross motor skills of infants up to 12 months of age.

    at 1 month postnatal visit

  • A trained (blinded) researcher will measure bicep, tricep, and subscapular skinfold measures, circumferences (abdominal, head, mid-upper arm), and lengths (body, femur, leg, humeral). All measures are recorded as mm.

    at 1 month postnatal visit

  • A trained (blinded) researcher will measure body weight on an infant scale

    at 1 month postnatal visit

Study Arms (4)

Non-Exercise Control

NO INTERVENTION

This group will come in regularly for measurements, but will not have an exercise intervention. If necessary for retention of participants, then we will meet with controls 3 times a week to stress reduction techniques.

Resistance Type of Exercise

EXPERIMENTAL

This group will participate in resistance exercise intervention 3 times per week from enrollment to delivery.The resistance training (RT) group will perform three sets of 12-15 repetitions of 10-12 resistance exercises in a circuit, with rest of 30-60 seconds between sets as needed. Participants will use a combination of Cybex machines (Cybex International, Medway, MA), resistance bands, and free weights. Routines will change every 3 weeks to add variety and improve compliance.

Behavioral: Types of Exercise

Combination Type of Exercise

EXPERIMENTAL

This group will participate in combination (aerobic+resistance) exercise intervention 3 times per week from enrollment to delivery. The combination (CT) group will alternate between resistance and aerobic exercises. Participants will perform 4.5 minute bouts of aerobic exercise and perform four resistance exercises of 12-15 repetition that vary between aerobic bouts\[17-19\]. The aerobic exercise bouts will be performed on the aerobic machine of the participant's choosing as described above. The resistance routine will follow similar guidelines as the resistance group.

Behavioral: Types of Exercise

Aerobic Type of Exercise

EXPERIMENTAL

This group will participate in aerobic exercise intervention 3 times per week from enrollment to delivery. The aerobic training (AT) group will perform a continuous aerobic exercise of their choosing (e.g., treadmill, ellipticals, stairs, Zumba, or outside walking/jogging). Participants' ability to choose an aerobic activity that they are comfortable with and enjoy is intended to improve compliance.

Behavioral: Types of Exercise

Interventions

moderate intensity exercise

Aerobic Type of ExerciseCombination Type of ExerciseResistance Type of Exercise

Eligibility Criteria

Age18 Years - 35 Years
Sexfemale(Gender-based eligibility)
Gender Eligibility Detailsour study focuses on exercise exposure during pregnancy, therefore, all participants are female.
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • \<16 weeks gestation
  • singleton pregnancy telephone/email contact

You may not qualify if:

  • chronic conditions i.e. diabetes, hypertension, HIV, etc.
  • use of medications that affect fetal development;
  • use of alcohol, tobacco, or other drugs

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

East Carolina University

Greenville, North Carolina, 27834, United States

Location

Related Publications (8)

  • Jevtovic F, Wisseman BL, Jahan F, Claiborne A, Collier DN, DeVente JE, Mouro S, Zeczycki T, Szumilewicz A, Adamo KB, Goodyear LJ, May LE. Maternal exercise alters placental proteome in an exercise mode-specific manner. Am J Physiol Endocrinol Metab. 2025 Dec 1;329(6):E912-E922. doi: 10.1152/ajpendo.00052.2025. Epub 2025 Nov 4.

  • Sanchez-Parente S, Kern K, Claiborne A, Wisseman B, Steen D, Roenker B, Lilley A, Strom C, Newton E, DeVente J, Mouro S, Collier D, Kuehn D, Dubose KD, Kelley G, McMillan AG, Castro-Pinero J, Aparicio VA, May LE. Impact of Supervised-concurrent Exercise During Pregnancy on Infant Neuromotor Skills: A Post-hoc Analysis Stratified by Maternal BMI. Sports Med Open. 2025 Jun 20;11(1):78. doi: 10.1186/s40798-025-00886-x.

  • Jevtovic F, Claiborne A, DeVente JE, Mouro S, Houmard JA, Broskey NT, May LE. Maternal resistance exercise increases infant energy expenditure. Am J Physiol Endocrinol Metab. 2025 Mar 1;328(3):E354-E361. doi: 10.1152/ajpendo.00414.2024. Epub 2024 Dec 23.

  • Jevtovic F, Claiborne A, Biagioni EM, Collier DN, DeVente JE, Mouro S, Kaneko-Tarui T, O-Tierney-Ginn PF, Goodyear LJ, Houmard JA, Broskey NT, May LE. Paternal obesity decreases infant MSC mitochondrial functional capacity. Am J Physiol Endocrinol Metab. 2024 Oct 1;327(4):E441-E448. doi: 10.1152/ajpendo.00239.2024. Epub 2024 Aug 14.

  • Jevtovic F, Collier DN, DeVente J, Mouro S, Claiborne A, Wisseman B, Steen D, Kern K, Broskey N, May LE. Maternal exercise increases infant resting energy expenditure: preliminary results. Int J Obes (Lond). 2024 Sep;48(9):1347-1350. doi: 10.1038/s41366-024-01560-0. Epub 2024 Jun 10.

  • Jevtovic F, Zheng D, Houmard JA, Kern K, Claiborne A, Lopez CA, Broskey NT, Isler C, DeVente J, Newton E, May LE. Myogenically differentiated mesenchymal stem cell insulin sensitivity is associated with infant adiposity at 1 and 6 months of age. Obesity (Silver Spring). 2023 Sep;31(9):2349-2358. doi: 10.1002/oby.23829. Epub 2023 Aug 8.

  • Jevtovic F, Zheng D, Houmard JA, Krassovskaia PM, Lopez CA, Wisseman BL, Steen DM, Broskey NT, Isler C, DeVente J, Fang X, May LE. Effects of Maternal Exercise Modes on Glucose and Lipid Metabolism in Offspring Stem Cells. J Clin Endocrinol Metab. 2023 Jun 16;108(7):e360-e370. doi: 10.1210/clinem/dgad059.

  • McDonald SM, Mouro S, Wisseman B, Isler C, DeVente J, Newton E, Hildebrand J, Kuehn D, Kelley G, Chasan-Taber L, Broskey NT, May LE. Influence of prenatal exercise on the relationship between maternal overweight and obesity and select delivery outcomes. Sci Rep. 2022 Oct 15;12(1):17343. doi: 10.1038/s41598-022-22283-0.

MeSH Terms

Conditions

Motor Activity

Condition Hierarchy (Ancestors)

Behavior

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
CARE PROVIDER, INVESTIGATOR
Masking Details
the clinicians and investigators taking measures are blinded to group assignment
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: comparing 3 exercise interventions to a control (non-exercise) group
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

November 5, 2018

First Posted

February 12, 2019

Study Start

September 1, 2018

Primary Completion

January 30, 2023

Study Completion

January 30, 2023

Last Updated

August 8, 2023

Record last verified: 2023-08

Data Sharing

IPD Sharing
Will not share

we will not be sharing individual data with other researchers

Locations