How exercising in hot versus cool conditions affects breast milk amount and makeup

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This randomized crossover trial has lactating participants complete baseline testing and two exercise visits: one 60-minute bout at 40% VO2peak in a hot environment (36°C, 40% RH) and one in a thermoneutral environment (20°C, 20% RH). Participants will record total 24-hour breast milk production using an infant scale and provide samples for milk composition and energy-density analysis. Baseline measures include body composition by DXA, anthropometrics, hydration and metabolic heat production testing. All data collection occurs at the Health and Human Performance Laboratory at Providence College.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Currently breastfeeding or pumping expressed breastmilk for their 6-week to 24-month infants
* Aged 18-45 years old
* Delivered their infants between 37-42 weeks of gestational age

Exclusion Criteria:

* Obsterical complications during pregnancy
* multiple gestation
* Chronic disease (i.e., diabetes, hypertension, metabolic disease)
* Heat illnness in the last 3 month

Where it's running

• Providence College
  Providence, Rhode Island, United States Recruiting

Study contacts

• Principal investigator: Margaret C Morrissey-Basler, PhD — Providence College
• Study coordinator: Margaret C Morrissey-Basler, PhD
• Email: mmorri17@providence.edu
• Phone: 4018650219

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.