Simulation of Consecutive Day Shift Work

Completed · Not applicable

Conditions studied: Hyperthermia, Fatigue; Heat

In brief

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.

Key facts

Study ID

NCT04625634

Run by

State University of New York at Buffalo

People needed

23

Starts

2019-12-02

Expected to finish

2022-05-01

Last updated by the study team

2022-07-26

Who can join

Age: 18 and older, up to 39. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• 18-39 y old men and women
• Self-reported to be healthy

You may not qualify if…

• 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

Where it is running

• Center for Research and Exercise in Special Environments — Buffalo, New York, United States

Full record on ClinicalTrials.gov

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