Effect of Total Immersion at Various Temperatures on Oxygen Uptake at Rest and During Exercise

Abstract
Oxygen uptake was measured on four subjects at rest and during mild exercise in air and in water in the temperature range 29.5–36.5°C over 20-minute periods. At comparable temperatures, oxygen consumption and heart rate appeared to be affected to a greater extent by average skin temperature than by immersion per se. Failure to give a normal reduction in heart rate on immersion in water below body temperature may indicate unfitness for tasks involving underwater work. Submitted on January 18, 1956

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