. Carnegie Institution of Washington publication. PHYSIOLOGICAL EFFECTS OF GRADE WALKING. 271 meters per minute ( to 2 miles an hour) on a 30 to 40 per cent grade, and performing approximately 1,200 to 1,600 kg. m. of work. With a grade of 30 per cent and a speed of 68 meters per minute, the body- temperature increased regularly during the 32 minutes of continuous walking, reaching a maximum of ° C., with a total rise of ° C. (See curve A.) The fall in temperature when the subject stopped 9 f / V A / \ / /K / \ V / s / 25p •J 46
. Carnegie Institution of Washington publication. PHYSIOLOGICAL EFFECTS OF GRADE WALKING. 271 meters per minute ( to 2 miles an hour) on a 30 to 40 per cent grade, and performing approximately 1,200 to 1,600 kg. m. of work. With a grade of 30 per cent and a speed of 68 meters per minute, the body- temperature increased regularly during the 32 minutes of continuous walking, reaching a maximum of ° C., with a total rise of ° C. (See curve A.) The fall in temperature when the subject stopped 9 f / V A / \ / /K / \ V / s / 25p •J 46" ct. stars / / V *3 £^10°° K 40 n oo a 3 4O 1QOO 2i l^p. m. 3850 oo on A f* B / ' M \ / So P. 60m /«•' A ilufS D / V «*=x^ -*°~^? * c TO ! 'a. m 9 4 u 1( )00 J 0 41 J 1 03 2 0 4V. Fia. 34.—Typical body-temperature curves 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 experi- mental periods; open circles, records between periods. Curve A, Feb. 2; B, Feb. 25; C, Mar. 8, 1916. walking and stood, at 10h 55m a. m., was not so rapid as that shown by the curve D when a higher body-temperature was reached, or when the subject sat after walking, as shown by curve C in figure 34. A more rapid fall began at llh 40m a. m., when the subject sat down, which again was retarded during the standing period of 20 minutes about 12 o'clock. At 1 p. m., after 2 hours and 5 minutes of inter- mittent standing and sitting, the temperature had not reached the initial 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 Institution of Washington. Washington, Carnegie Institution of Washington
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