Interval Versus Continuous Exercise During Pregnancy

University of Alberta

Status: Completed

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

Treatments: Other: Moderate Intensity Continuous Training; Other: High intensity Interval Training

Study type: Interventional

Funder types: Other

Identifiers

NCT05369247

Pro00103630

Details and patient eligibility

About

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.

Enrollment: 32 patients

Sex: Female

Ages: 18 to 50 years old

Volunteers: Accepts Healthy Volunteers

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)

Trial design

Primary purpose: Basic Science

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: None (Open label)

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32 participants in 2 patient groups

1st Exercise session

Experimental group

Description:

Participants completed either the HIIT or MICT session.

Treatment:

Other: High intensity Interval Training

Other: Moderate Intensity Continuous Training

2nd Exercise session

Experimental group

Description:

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

Treatment:

Other: High intensity Interval Training

Other: Moderate Intensity Continuous Training