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Safe Indoor Temperature Limit for Fans

NCT06584903 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 10

Last updated 2024-09-19

No results posted yet for this study

Summary

Extreme heat events are a significant global threat to health and wellbeing, and result in more morbidity and mortality than all other natural disasters combined. Thus, a key priority is identifying effective and accessible heat resilience solutions to protect individuals from the potentially fatal consequences of heat stress. Within a range of ambient conditions, a fan has been recognized a low-cost heat resilience solution. However, when ambient temperatures exceed skin temperatures (e.g., above 35°C), a fan will incur greater dry heat gain which may be counterbalanced with evaporation of sweat from the skin surface. However, at a critical indoor temperature, the rate of heat gain will exceed the rate of evaporation resulting in net heat gain. The critical indoor temperature has yet to be determined. The purpose of this present study is to identify the indoor temperature at which a fan results in greater cardiovascular and thermal strain relative to still air in young adults using a simulated heat wave scenario of a warming room.

Conditions

  • Heat Exposure
  • Healthy
  • Young Adults
  • Fans

Interventions

OTHER

Temperature Ramp Protocol

Following a 45 minute baseline in 37°C seated on a chair, the indoor temperature in the climate-controlled room increased from 37°C to 47°C at \~0.06°C/min (relative humidity \~26%) over 180 minutes.

Sponsors & Collaborators

  • Lakehead University

    lead OTHER

Principal Investigators

  • Nicholas Ravanelli, PhD · National University of Singapore

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
19 Years
Max Age
39 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-01-20
Primary Completion
2024-04-30
Completion
2024-04-30

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06584903 on ClinicalTrials.gov