Sex Differences in Cold-Induced Changes in Maximal Fat Oxidation

Recruiting now · Not applicable

Conditions studied: Exercise

In brief

The purpose of this research study is to determine if the cold-induced change in fat burning during exercise is different between females and males.

Key facts

Study ID

NCT07297823

Run by

Colorado State University

People needed

20

Starts

2026-04-15

Expected to finish

2027-06-30

Last updated by the study team

2026-05-15

Who can join

Age: 18 and older, up to 40. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Age 18-40 years (inclusive)
• Weight stable (no change in body mass greater than 5 lbs. within the previous 6 months.
• Willing to abstain from caffeine and alcohol for 24-hours prior to two different study visits
• Competency in English as informally assessed by comprehension of the Informed Consent. This study involves maximal exercise testing; for safety reasons, the ability for clear and rapid communication will be necessary between the research participants and the investigators.
• Regular exercise (i.e., at least 150 minutes of moderate-vigorous exercise per week)

You may not qualify if…

• Use of hormonal contraceptives
• History of autonomic, cardio-pulmonary, and/or metabolic disease (including heart failure, hypertension, arrhythmia, vascular disease, and/or diabetes)
• Pregnancy or breast feeding
• Habitual use of tobacco/nicotine products or recreational drugs (2 or more uses within the previous month)

Where it is running

• Colorado State University — Fort Collins, Colorado, United States (enrolling)

Full record on ClinicalTrials.gov

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