Comparison of Fatigue in Varying Hot Environments

State University of New York at Buffalo13 enrolled

Overview

The purpose of this study is to determine the impact of varying hot environments on physiological and perceptual fatigue during work.

After providing written informed consent and screening, subjects will complete two experimental visits during which they will complete treadmill work in either a hot/dry or warm/humid environment.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

OTHER

Masking

NONE

Enrollment

Conditions

Hyperthermia

Interventions

Hot/DryOTHER

Work is completed in a hot/dry environment.

Warm/HumidOTHER

Work is completed in a warm/humid environment

Eligibility

Sex: ALLMin age: 18 YearsMax age: 39 YearsHealthy volunteers:

Medical Language ↔ Plain English

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 * Current musculoskeletal injury * Taking medications with known thermoregulatory or cardiovascular effects (e.g., aspirin, acetaminophen, ibuprofen, beta blockers, diuretics, psychotropics, etc.) * 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 * Contraindications of consuming a core temperature monitoring pill

Locations (1)

Center for Research and Exercise in Special Environments

Buffalo, New York, United States

Outcomes

Primary Outcomes

Smoothness of movement

The variable, jerk, determines smoothness or unevenness of physical movement during work. This is measured using accelerometers placed along the spine, ankle, and shoulder.

Time frame: 90 minutes

Energy Expenditure

The amount of energy the body is expending during work. This is measured using indirect calorimetry.

Time frame: 90 minutes

Secondary Outcomes

Perceptual fatigue

The degree of fatigue that the subjects perceive during work. This is measured using a subjective likert 0-10 scale named the Fatigue Scale with 0 indicting "no fatigue at all" and 10 indicating "completely fatigued".

Time frame: 90 minutes

Data from ClinicalTrials.gov

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