Functional assessment of nutritional status: heart rate response to submaximal work

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Abstract
The heart rate response to submaximal treadmill work has been calculated using the heart rates and oxygen intakes obtained from normally nourished and undernourished adult male subjects during a maximal oxygen consumption test. Increased severity of malnutrition was associated with an increased heart rate response to the same submaximal work loads. The response was observed to decrease during a period of high protein dietary repletion of the most severely malnourished subjects. The data suggest the possibility of developing a submaximal work test for use in the field to provide physiological data to supplement anthropometric and biochemical information used to assess the nutritional status of populations.