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Various indirect methods of measuring blood flow in the peripheral blood vessels of man are available. Irrespective of the method used for measuring blood flow, certain fundamental factors concerned with the status of the subject or patient influence the measurement of blood flow. These factors are environmental temperature, position of the extremities and food. The present investigation indicates that a consideration of the basal metabolic rate or basal heat production is another important factor.

Relation of Basal Metabolic Rate to Vasodilatation and Vasoconstriction of the Extremities of Normal Subjects as Measured by Skin Temperatures