Evaluating heat stress management for workers

Impact of Partial and Full Cooling Applied During Prescribed Rest Breaks to Mitigate Increases in Physiological Strain During Prolonged Work in Hot Environments.

Not applicable Interventional University of Ottawa · NCT06630832

This study tests different cooling methods during breaks to see if they can help workers stay safe and cool while working in hot conditions.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment20 (estimated)
Ages18 Years to 69 Years
SexMale
SponsorUniversity of Ottawa Academic / other
Locations1 site (Ottawa, Ontario)
Trial IDNCT06630832 on ClinicalTrials.gov

What this trial studies

This study investigates the effects of different cooling interventions during rest breaks on workers exposed to occupational heat stress. Participants will simulate work in a hot environment with varying levels of cooling during breaks to assess how these interventions impact body temperature and overall heat stress. The study aims to identify effective strategies to mitigate the risks associated with heat exposure in the workplace. By analyzing the physiological responses of young and older adults, the research seeks to improve safety guidelines for workers in hot conditions.

Who should consider this trial

Good fit: Ideal candidates are young adults aged 18-30 and older adults aged 50-69 who are habitually active but not endurance trained.

Not a fit: Patients with pre-existing health conditions or those regularly exposed to hot environments may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved safety protocols that protect workers from heat-related health issues.

How similar studies have performed: Previous studies have shown that cooling interventions can effectively reduce heat stress, suggesting potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* young (18-30 years) and older adults (50-69 years)
* habitually active, not endurance trained (\<2 sessions per week, \<150 minutes per week)
* non-smoking
* English or French speaking
* ability to provide informed consent

Exclusion Criteria:

* pre-existing health conditions (e.g., diabetes, hypertension)
* use of medication deemed to significantly modulate thermoregulatory function and heat tolerance (e.g., antidepressants, antihistamines, diuretics)
* engaged in jobs and/or activities that involve frequent exposure to hot environments (e.g., regular sauna use)

Where this trial is running

Ottawa, Ontario

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Body Temperature ChangesHeat StressHeat ExposureHeat FatigueWork Related StressHyperthermiaHeat strainThermoregulation
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.