INGESTION OF CARBOHYDRATES. 



241 



On examination of the individual experiments, we find that in the two 

 observations with the lowest basal value the maximum height of the 

 respiratory quotient after food was also the lowest. Thus, in the experi- 

 ment with J. C. C. on December 31, 1912, in which the initial quotient 

 was 0.74, the highest quotient obtained was but 0.81, while in the 

 experiment with B. M. K. on December 30, 1912, with a basal quotient 

 of 0.70, the maximum quotient was 0.79. In these two instances a low 

 glycogen store in the body at the beginning of the experiment can be 

 inferred. This inference is further substantiated by the fact that a few 

 days prior to this test these two subjects were living on a carbohydrate- 

 free diet taken during a series of acidosis experiments. 



TABLE 179. Influence ofingestion of 100 grams dextrose on the respiratory quotient in 



respiration experiments. 



Average of two quotients, 0.96 and 0.91. 3 Average of two quotients, 0.99 and 0.87. 



2 Average of two quotients, 0.88 and 0.80. 4 Average of two quotients, 0.76 and 0.72. 



""Average of four quotients, 0.91, 0.85, 0.87, and 0.87 (3 to 5 minute periods). 

 'Average of two quotients, 0.90 and 0.91 (5 minute periods). 



The comparison of the maximum increases in the respiratory quo- 

 tients for the individual experiments, which is given in the last column, 

 shows the lowest maximum rise to be 7 points above the basal, the 

 highest 17 points, and the average maximum rise 12 points. While the 

 lowest maximum rise was obtained in the experiment with the glycogen- 

 poor subject J. C. C., it should be further noted that in an experiment 

 with C. H. H. on May 1, 1911, in which the initial quotient was 0.87, 

 there was the same rise of but 7 points; the relationship between the 

 initial value and the maximum rise in the quotient is therefore by no 

 means definitely established. In general, however, if the initial value 

 is low, the maximum rise in the quotient is also low. 



