Acute Effects of Endurance Exercise on Breast Milk Composition in Women With Overweight/Obesity (YT)

Norwegian University of Science and Technology

Status: Completed

Conditions: Overweight and Obesity; Breast Milk Collection

Treatments: Behavioral: Moderate intensity exercise; Behavioral: High intensity exercise

Study type: Interventional

Funder types: Other

Identifiers

NCT05745922

562012

Details and patient eligibility

About

The investigators will determine the acute effect of exercise on breastmilk composition. Participants will come in to the lab on three different days, out of which they will exercise on two of these days and rest in the lab on the third day. The conditions will be randomly allocated to each participant. Breastmilk samples will be obtained in the morning of each test day, as well as immediately after, one hour after and four hours after the exercise/rest condition. Dietary intake will be standardized on the test days.

Enrollment: 32 patients

Sex: Female

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• 6 weeks postpartum
• Exclusively breastfeeding
• Term birth
• Singleton baby

Exclusion criteria

• Known cardiovascular disease
• Known type 1 or type 2 diabetes
• Limited ability to exercise

Trial design

Primary purpose: Basic Science

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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32 participants in 3 patient groups

Control

No Intervention group

Description:

Resting in seated position

Moderate intensity exercise

Experimental group

Description:

Moderate intensity endurance exercise, treadmill walking/running at 70% of heart rate maximum for 40 minutes

Treatment:

Behavioral: Moderate intensity exercise

High intensity exercise

Experimental group

Description:

High intensity interval training: treadmill walking/running. 10 minutes warm-up at 70% of heart rate maximum, followed by four 4-minutes bouts at 90-95% of heart rate maximum, separated by 3-minutes active recovery (at 70% of heart rate maximum)

Treatment:

Behavioral: High intensity exercise