6oo 



PHYSIOLOGICAL CHEMISTRY 



FIG. 189. BLOOD SUGAR CURVE OF DIABETIC AFTER GLUCOSE INGESTION. 

 (Martin and Mason: American Journal of Medical Sciences, 153, 50, 1917.) 



ii. Influence of Physical Exercise upon Blood Sugar. After strenuous physical 

 exertion by a normally nourished individual there is an increase in the sugar concen- 

 tration of the blood. 1 Similar increases are not shown by resting individuals simi- 

 larly nourished nor by fasting individuals after strenuous physical exercise. This 

 point is illustrated in the following protocol : 



INFLUENCE OF PHYSICAL EXERCISE ON BLOOD SUGAR (Normal Man) 



Day 



Experimental conditions 



Blood 



examined, 



hour 



Blood 



sugar, 



per cent 



Normal. 



7 A. M. 



0.043 



Fasting and complete rest. 



12 A. M. 



0.045 



1 -Moraczewski: Bioch. Zeit., 71, 268, 1915. 



