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Completed

NCT Number: NCT06094764

S&B Heat Stress Pilot Protocols

The purpose of this study is to develop a heat stress program for the construction industry and evaluate its feasibility and appeal.

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Key information

Conditions

Thermal Discomfort

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

The University of Texas Health Science Center at Houston

Houston, Texas, 77030, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • employed at S&B
  • work more than 20 hours a week

Exclusion criteria

  • severe chronic disease (e.g. severe pulmonary or cardiovascular disease
  • history of severe heat stroke
  • use of a pacemaker
  • any medical issue which would render the participant unable to wear a chest monitor and cooling vest.

Treatment and study plan

Group A

Device

The intervention will take place after lunch for about 2-3 hours in regular working conditions. Group A will be fitted with a cooling and bio-harness. At the end of each workday, participants will return the monitors and vests will be removed and returned to the research station. The biomonitor's battery will be recharged and data downloaded. The ice vests will be placed in a freezer.

Group B

Device

The intervention will take place after lunch for about 2-3 hours in regular working conditions. Group B will wear a bio-harness and no cooling vest.At the end of each workday, participants will return the monitors and vests will be removed and returned to the research station. The biomonitor's battery will be recharged and data downloaded. The ice vests will be placed in a freezer.

Primary outcomes

  1. Thermal discomfort as assessed by the thermal comfort scale

    Time frame: end of study (about 2 hours after start)

    The thermal comfort scale is a 7-point scale that asks participants to rate their level of thermal comfort ranging from the sensation of "cold, cool, slightly cool, neutral, slightly warm, warm, hot

Secondary outcomes

  1. Change in Heart rate as assessed by the Zephyr BioHarness 3.0 device

    Time frame: from baseline to end of study (2 hours after baseline)

  2. Estimated core body temperature as assessed by the Zephyr BioHarness 3.0 device

    Time frame: from baseline to end of study (2 hours after baseline)

  3. Respiratory rate as assessed by the Zephyr BioHarness 3.0 device

    Time frame: from baseline to end of study (2 hours after baseline)

  4. Caloric burn as assessed by the Zephyr BioHarness 3.0 device

    Time frame: from baseline to end of study (2 hours after baseline)

  5. Hydration status as indicated by urine specific gravity as assessed by a clinical refractometer analysis of urine sample

    Time frame: from baseline to end of study (2 hours after baseline)

Sponsors and collaborators

Lead sponsor

The University of Texas Health Science Center, Houston

Other

Collaborators

  • National Institute for Occupational Safety and Health (NIOSH/CDC)

Registry information

Official study title

Measuring the Effectiveness of a Personal Cooling Vest for the Prevention of Heat Strain in Construction Workers

Important dates

Study start
2023
Primary completion
2023
Study completion
2023
First posted
Oct 23, 2023
Registry last updated
Oct 23, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.