Interval Versus Continuous Exercise During Pregnancy

NCT ID: NCT05369247

Last Updated: 2023-01-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

32 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-12-01

Study Completion Date

2022-12-30

Brief Summary

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The objective of this randomized cross-over design was to investigate the fetal well-being and maternal glycemic response to an acute bout of aerobic high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) with pregnant individuals.

Detailed Description

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Conditions

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Pregnancy Related Glucose, Low Blood Fetal Heart Rate or Rhythm Abnormality Affecting Fetus Fetal Blood Flow

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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1st Exercise session

Participants completed either the HIIT or MICT session.

Group Type EXPERIMENTAL

High intensity Interval Training

Intervention Type OTHER

HIIT protocol consisted of 10 one-minute intervals of high-intensity work (i.e., \> 90% HRmax) interspersed with nine one-minute intervals of self-paced active recovery (19-minutes total).

Moderate Intensity Continuous Training

Intervention Type OTHER

The MICT protocol consisted of 30-minutes of moderate intensity cycling (i.e., 64 - 76% HRmax).

2nd Exercise session

Participants completed the subsequent exercise protocol (i.e. HIIT or MICT)

Group Type EXPERIMENTAL

High intensity Interval Training

Intervention Type OTHER

HIIT protocol consisted of 10 one-minute intervals of high-intensity work (i.e., \> 90% HRmax) interspersed with nine one-minute intervals of self-paced active recovery (19-minutes total).

Moderate Intensity Continuous Training

Intervention Type OTHER

The MICT protocol consisted of 30-minutes of moderate intensity cycling (i.e., 64 - 76% HRmax).

Interventions

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High intensity Interval Training

HIIT protocol consisted of 10 one-minute intervals of high-intensity work (i.e., \> 90% HRmax) interspersed with nine one-minute intervals of self-paced active recovery (19-minutes total).

Intervention Type OTHER

Moderate Intensity Continuous Training

The MICT protocol consisted of 30-minutes of moderate intensity cycling (i.e., 64 - 76% HRmax).

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Carrying a singleton pregnancy (i.e. greater than or equal to 20 weeks of gestation).
* Has access to a stationary bike
* Located within Canada and/or within Edmonton Alberta

Exclusion Criteria

* History of smoking within the last year
* Taking medications that may interfere with cardiovascular function.
* High-order pregnancies, e.g. twins or above.
* Females with absolute contraindications (as outlined by the Canadian Guidelines for Physical Activity throughout Pregnancy and the PARMed-X questionnaire)
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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University of Alberta

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Margie H Davenport, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Alberta

Locations

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University of Alberta

Edmonton, Alberta, Canada

Site Status

Countries

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Canada

References

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Wowdzia JB, Hazell TJ, Berg ERV, Labrecque L, Brassard P, Davenport MH. Maternal and Fetal Cardiovascular Responses to Acute High-Intensity Interval and Moderate-Intensity Continuous Training Exercise During Pregnancy: A Randomized Crossover Trial. Sports Med. 2023 Sep;53(9):1819-1833. doi: 10.1007/s40279-023-01858-5. Epub 2023 May 22.

Reference Type DERIVED
PMID: 37213048 (View on PubMed)

Other Identifiers

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Pro00103630

Identifier Type: -

Identifier Source: org_study_id

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