A COMPARISON OF REACTIONS TO INDUSTRIAL PROTECTIVE CLOTHING

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Abstract
This investigation attempts to assess the effects of wearing protective clothing in warm environments. The aim was to provide data from which recovery times could be assessed. Normal clothing and five protective assemblies, four of which covered head and body, were tested on separate days for five cycles, each of 20 min work and 5 min rest. For all protective assemblies increasing heat strain followed similar patterns when measured by heart rate, body temperature and subjective assessment. With normal clothing the work/rest schedule was adequate, but it was unsatisfactory with the protective assemblies, when times required for specified tasks also increased. Simple heart rate measurements were found to be more reliable for assessing rest requirements than any of the existing recommended Relaxation Allowances. For applications when the head must be covered, the compressed-air suit was shown to have physiological and psychological advantages over the three simpler assemblies tested.

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