Status:

UNKNOWN

Influence of Wet Clothing on Thermal Protection

Lead Sponsor:

United States Army Research Institute of Environmental Medicine

Conditions:

Low Body Temperatures

Eligibility:

All Genders

18-49 years

Phase:

NA

Brief Summary

The aim of this investigation is to provide guidance for assessing the influence of wet clothing, and its drying time, on body temperature responses during cold air exposure. Twelve healthy and fit ad...

Detailed Description

Participants, in their first visit, will undergo baseline weighted treadmill walking consisting of \~20 min of treadmill walking with a load of 77lbs followed by \~25 min of treadmill walking with a l...

Eligibility Criteria

Inclusion

  • Military or civilian, male or female, between the ages of 18 (17 if active duty military) and 49 years.
  • Able to carry a rucksack weighing 35 kg (77lbs) for at least 20 minutes and able to carry a rucksack weighing 17.5kg (38.5lbs) for up to 120 minutes
  • In good health as determined by our OMSO (Office of Medical Support and Oversight) General Medical Clearance.
  • Vaccinated against COVID 19.
  • Willing to refrain from heavy exercise and alcoholic beverages for 24 hours before each testing session.
  • Willing to refrain from smoking or tobacco use for 8 hours before each testing session.
  • Willing to refrain from caffeine ingestion for 12 hours before each testing session.
  • Body fat percentage \<18% for males, \< 24% for females, once 6 individuals of higher body fat (18% or greater for males, 24% or greater for females) have completed the study.

Exclusion

  • History of cold injuries.
  • Raynaud's syndrome.
  • Cold-induced asthma/bronchospasm.
  • Medications or dietary supplements that could alter cardiovascular, thermoregulatory, or vascular control.
  • Heart, lung, kidney, muscle, or nerve disorder(s).
  • Planned MRI during or within two days after completing the study.
  • Known allergy to adhesives.
  • Female and pregnant, planning to become pregnant, or breastfeeding.

Key Trial Info

Start Date :

September 2 2021

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

September 30 2023

Estimated Enrollment :

30 Patients enrolled

Trial Details

Trial ID

NCT05409937

Start Date

September 2 2021

End Date

September 30 2023

Last Update

January 27 2023

Active Locations (1)

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USARIEM

Natick, Massachusetts, United States, 01760