Alcohol-induced physiological displacements and their effects on flight-related functions.

Lategola, Michael T.; Lyne, Peggy J.; Burr, Mary J.; Civil Aeromedical Institute

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Alcohol-induced physiological displacements and their effects on flight-related functions.

1982-03-01
By Lategola, Michael T. ; Lyne, Peggy J. ; Burr, Mary J.

[PDF-675.52 KB]

English

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Creators:

Lategola, Michael T. ; Lyne, Peggy J. ; Burr, Mary J.

Lategola, Michael T. ; Lyne, Peggy J. ; Burr, Mary J. Less -
Corporate Creators:

Civil Aeromedical Institute
Corporate Contributors:

United States. Office of Aviation Medicine
Subject/TRT Terms:

[+]

Air Pilots Air Pilots--Alcohol Use Alcohol--Physiological Effect--Testing Alcohol Effects Altitude Altitudes Arithmetic Blood Alcohol Levels Cardiovascular System Diuresis Experiments Eye-hand Coordination Human Subject Testing Mental Arithmetic Physical Fitness Physiological Aspects Tolerance (Physiology)
Publication/ Report Number:

FAA-AM-82-3 ; DOT/FAA/AM-82/3

FAA-AM-82-3 ; DOT/FAA/AM-82/3 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Civil Aerospace Medical Institute
Abstract:

Tolerances of human subjects for orthostasis and physical work were determined at a simulated altitude of 3,048 m. Orthostasis was induced with a lower body negative pressure (LBNP) device and physical work was done on a pedal ergometer. Altitude was simulated in a hypobaric chamber. Tests were carried out under two experimental conditions: (1) after subjects drank an alcoholic beverage, or (ii) after subjects drank a placebo beverage (no alcohol). The alcoholic beverage produced blood alcohol concentrations (BAC's) of about 90 mg/ 100 ml of blood (90 mg percent).

At altitude, arterial oxyhemoglobin saturation (HbO2) remained adequately compensated but was lower after alcohol than after placebo intake. Arithmetic and eye/hand coordination performances were both significantly decreased after school. Ergometry, after alcohol, was well tolerated despite some decreased cardiorespiratory efficiency. The LBNP applied around peak BAC at altitude was tolerated without subjectively adverse symptoms despite significant decreases in several cardiovascular parameters. Cardiovascular adequacy along with maintained plasma volume around peak BAC appeared to be temporarily protective against orthostatic incapacitation during LBNP. Reversal of this temporary orthostatic protection during BAC recession is possible.
Format:

PDF
Collection(s):

FAA Civil Aerospace Medical Institute US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:def7a3d3e90087075804ea5147d0d61c55dadce9776bd8012dec43b905764f96
Download URL:

https://rosap.ntl.bts.gov/view/dot/21204/dot_21204_DS1.pdf
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Alcohol-induced physiological displacements and their effects on flight-related functions.

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