Oxygen Uptake, Ventilation, and Heart Rate

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Abstract
Various physiological responses to strenuous exercise were measured in a group of 100 clinically healthy Negro children from the “inner core” area of Milwaukee. The subjects included 47 boys and 53 girls with an age range of 9 to 11 years. The height, weight, and body surface area of the subjects in this study were consistently lower than data reported in the literature for similar age groups. The work capacity, employing the criteria of “maximal” oxygen uptake, was also lower than most data reported on similar age groups. The data suggest that the physical work capacity of “disadvantaged” children is reduced, perhaps reflecting a poor nutritional status.