. Carnegie Institution of Washington publication. PHYSIOLOGICAL EFFECTS OF GRADE WALKING. 275 The average body-temperature is of special interest in experiments in which the energy changes are determined by direct calorimetry and in which an accumulation of heat in the body escapes direct measure- ment. The temperatures as here reported may not be considered as representing the average values for the whole body, for, as has been stated in earlier publications,1 the temperature of the body as a whole has a wide range. The data given here represent the temperature of the rectum only. If, however
. Carnegie Institution of Washington publication. PHYSIOLOGICAL EFFECTS OF GRADE WALKING. 275 The average body-temperature is of special interest in experiments in which the energy changes are determined by direct calorimetry and in which an accumulation of heat in the body escapes direct measure- ment. The temperatures as here reported may not be considered as representing the average values for the whole body, for, as has been stated in earlier publications,1 the temperature of the body as a whole has a wide range. The data given here represent the temperature of the rectum only. If, however, we accept these values as repre- senting the body average, we see that the temperature may be increased from 1 to 2 degrees, which, with a body-weight of 60 kg. and an assumed. FIQ. 37.—Contrasting curves of body-temperature of E. D. B., with subject standing and walking on an incline. (Values per minute.) 1, subject sitting; 2, standing; 3, walking on an incline. Black points, records during experimental periods; open circles, records be- tween periods. specific heat of ° C., results in a storage of 100 calories of heat in the body, for which allowance must be made in all studies by direct calorimetry. Since, however, the amount of heat stored in the body is dependent on so many conditions, such as clothing, air-currents, and intensity of work, only direct measurements of the body-temperature in each instance can be relied upon to give this value. It should be noted that we used no electric fan or other artificial means (see p. 37) for keeping the subject cool during the experiments, and the changes Benedict and Snell, Arch. f. d. ges. Physiol., 1901, 88, p. 492; also, Benedict and Slack, Car- negie Inst. Wash. Pub. No. 155, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Inst
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