230 Metabolism of Healthy Max. 



expressed as calories and as kilogrammeters ; and finally, the increase of heat 

 per kilogrammeter, and the number of kilogrammeters of work performed per 

 increase of each calorie of heat. The results of the 6 experiments show a prac- 

 tical uniformity. Thus, for every kilogrammeter of work performed there was 

 an increase in the heat production above the resting metabolism of 0.0112 

 calorie, the variations ranging from 0.01057 to 0.01190 calorie. For every 

 increase of 1 calorie above the resting metabolism, there were on the average 

 89.4 kilogrammeters of work performed, the amount ranging from 84.0 to 94.6 

 kilogrammeters. Thus, since one calorie is equivalent to 427 kilogrammeters, 

 it can be seen that the mechanical efficiency of the body may be obtained by the 

 formula 89.4 X 100 -=- 427 = 20.9 per cent. 



