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NCT05292170 · ClinicalTrials.gov registry record · NA

Influences of Female Sex and Reproductive Hormones on Physiological Aspects of Heat Acclimation

A NA study of Heat Stress, Exertional, sponsored by United States Army Research Institute of Environmental Medicine.

Completed
Registry status
NA
Development phase
27
Enrollment target
1
Study location

NCT05292170 is a NA study of Heat Stress, Exertional that has completed, run by United States Army Research Institute of Environmental Medicine. The registered enrollment target is 27 participants. The trial reports 1 study location across 1 state.

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The verdict

NCT05292170, a NA study of Heat Stress, Exertional, has completed, sponsored by United States Army Research Institute of Environmental Medicine.

COMPLETED
Registry status
NA
Development phase
27 participants
Enrollment target
1
Study location

Study Summary

Women are often understudied in thermal physiology research, leaving recommendations for Soldier safety and performance in hot conditions based largely on data collected in men. Female sex hormones estradiol and progesterone clearly have non-reproductive physiological effects, including influences on thermoregulatory and cardiovascular function. However, mechanisms of differing physiological adaptations to repeated heat exposure (i.e., heat acclimation) as a function of reproductive hormone status have yet to be investigated in a systematic way. Understanding possible sex differences in adaptation or mechanisms for adaptation during heat acclimation is important to ultimately optimize interventions to maximize soldier health and safety during training and deployment in the heat. Our goals in the present study are to evaluate physiological and biophysical responses to a standard heat acclimation protocol in a group of young, healthy men and women. Thirty individuals (n=10 males, n=10 women with a low hormonal status (i.e. early follicular phase), n=10 women with a high hormonal status (i.e. midluteal phase)) will complete 10 consecutive days of exercise (treadmill walking: 3.1 mph/2% grade) in the heat (40°C /40% relative humidity) up to 3hr per day. Changes in core temperature, heart rate, and sex hormones will be assessed to examine differences in thermoregulatory response to heat acclimation.

Conditions Studied

Interventions

  • OTHER Heat acclimation

Study Locations (1)

Massachusetts

  • U.S. Army Research Institute of Environmental Medicine - Natick

Trial Details

FieldValue
Enrollment Target 27 participants
Start Date 2021-10-01
Est. Completion 2024-04-30
Phase NA

What the Registry Record Tells You About NCT05292170

The ClinicalTrials.gov registry entry for NCT05292170 describes a study currently listed as completed, categorized as NA. The registered enrollment target is 27 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is United States Army Research Institute of Environmental Medicine, which has 59 total studies on file at ClinicalTrials.gov.

The record links to 1 condition, with Heat Stress, Exertional appearing as the primary indexed condition, and to 1 intervention - of which Heat acclimation is the first listed.

NCT05292170 reports 1 study location spanning 1 distinct geographic area - top geographies include Massachusetts.

Frequently Asked Questions

What is clinical trial NCT05292170 about?

NCT05292170 is a clinical study titled "Influences of Female Sex and Reproductive Hormones on Physiological Aspects of Heat Acclimation". Women are often understudied in thermal physiology research, leaving recommendations for Soldier safety and performance in hot conditions based largely on data collected in men. Female sex hormones estradiol and progesterone clearly have non-reproductive physiological effects, including influences o...

What is the current status of trial NCT05292170?

This trial is currently completed. It is a NA study. The enrollment target is 27 participants. The study started on 2021-10-01. Estimated completion is 2024-04-30.

What conditions does trial NCT05292170 study?

This clinical trial studies the following conditions: Heat Stress, Exertional.

What interventions are being tested in trial NCT05292170?

The interventions under investigation include: Heat acclimation (OTHER).

Who is sponsoring clinical trial NCT05292170?

This trial is sponsored by United States Army Research Institute of Environmental Medicine, which has 59 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT05292170 being conducted?

This trial has 1 study location across Massachusetts. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainTrial Editorial

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page mirrors this trial's own ClinicalTrials.gov registry record, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.