Abstract
The aerobic capacities and physiological fitnesses of 321 Australian men were determined by a sub-maximal bicycle ergometer test. The results are for use when evaluating the physiological cost of work in industrial processes. The survey revealed that fitness was independent of occupation but was dependent upon age. Participation in regular moderate sport had little effect on fitness, but intensive sporting training was associated with superior fitness. Reduced fitness was associated with overweight, but underweight did not result in superior fitness. Some fitness figures from other countries are quoted.

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