Heat Tolerance and Aging with Application to Industrial Jobs
ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
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Exercise-heat tolerance has been shown to be reduced in older individuals. Some authors have suggested that aerobically fit older individuals have fewer performance decrements during exercise-heat stress than less fit individuals of the same age. However, none of these studies matched older and younger individuals for any pertinent physiological andor morphological variables. Recently, experimental results were reported where men differed in age by 25.2 years, but were matched for body weight, surface area, surface area- to-weight ratio, percent body fat and maximal aerobic power. Evidence from this study indicated little impairment of the thermoregulatory system during exercise-heat stress at least through the fifth decade of life for these aerobically trained older men. These findings show the importance of aerobic training and other morphological considerations in selecting older individuals for jobs in hot industrial environments.
- Stress Physiology