254 



METABOLISM DURING WALKING. 



on a level. From table 43, the percentage of the increase in heat due 

 to the step-lift in horizontal walking may be computed for E. D. B. 

 for the average speeds. These percentages, although made up of 

 somewhat widely varying individual values, are as follows : For 45 me- 

 ters, 9 per cent; for 55 meters, 11 per cent; for 65 meters, 15 per cent; 

 for 72 meters, 16 per cent; and for 77 meters, 18 per cent. The pro- 

 portions of the total heat for the horizontal component to be deducted 

 from the total heat over standing are, therefore, for a speed of 45 meters, 



TABLE 72. Efficiency for work of ascent of E. D. B. 1 (Average values per minute.) 



1 See table 55 (p. 209) for data in columns a to e. 



