Simulation of Consecutive Day Shift Work

Hyperthermia Clinical Trial

Official title:

Simulation of Consecutive Day Shift Work

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04625634
• Other study ID #: STUDY00003948
• Status: Completed
• Phase: N/A
• Start date: December 2, 2019
• Est. completion date: May 1, 2022

Study information

• Verified date: July 2022
• Source: State University of New York at Buffalo
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of this study is to determine differences in physiological recovery between two consecutive days of simulated fire suppression work. The secondary purpose is to determine differences in heat gain and heat loss between two consecutive days of simulated fire suppression work. Subjects will complete two consecutive days of simulated structural firefighting shift work, 24 hours apart. Before and after each laboratory visit, subjects will continuously wear a Holter monitor and ambulatory blood pressure monitor to quantify parasympathetic tone and recovery from work.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 23
• Est. completion date: May 1, 2022
• Est. primary completion date: May 1, 2022
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 39 Years

Eligibility

Inclusion Criteria:

• 18-39 y old men and women

• Self-reported to be healthy

Exclusion Criteria:

• History of any cardiovascular, neurologic, renal, or metabolic disease

• Current tobacco use or regular use within the last 2 years

• Taking medications with known thermoregulatory or cardiovascular effects (e.g., aspirin, acetaminophen, ibuprofen, beta blockers, diuretics, psychotropics, etc.)

• History of exertional heat stroke

• Currently pregnant or breastfeeding, or planning to become pregnant during the study

• Inability to follow the rules of the protocols or understand the consent form

• No contraindications for ingestion of the gastrointestinal temperature pill

Related Conditions & MeSH terms

• Fatigue; Heat
• Hyperthermia

Intervention

Other:
• 2 days of work heat stress
2 consecutive days of identical simulated structural firefighting tasks.

Locations

Country	Name	City	State
United States	Center for Research and Exercise in Special Environments	Buffalo	New York

Sponsors (1)

Lead Sponsor	Collaborator
State University of New York at Buffalo

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Core temperature	Gastrointestinal temperature measured with an ingestable pill.	20 minutes
Primary	Heart rate	Heart rate measured with a wearable heart rate strap and monitor	20 minutes