Abstract
The differences between glucose and sucrose were investigated on their effects of the recovery process after exercise.
After 17 hours fasting, male rats weighted 100-150g were forced to swim for three hours in 30°C warm water. Twenty percent solution of glucose or sucrose were administered orally by a stomach tube after the exercise.
Results were as follows;
1) Low blood sugar levels caused by severe exercise were reduced by administration of sugar and hyperglycemia continued more than three hours, while the maximum blood sugar level in non-exercised group was shown at one hour after administration and it decreased to normal value by three hours.
2) Although there was very slight sugar left in digestive tract (stomach to ileum) at one hour after glucose administration, delaying of sugar absorption was remarkable in sucrose administered groups ; that is, 125.2 mg% and 20.9 mg% of sugar were measured at one and three hours, respectively, after giving of sucrose.
3) Glycogen contents in liver and muscle increased more than that before the exercise in glucose administered groups by three hours after swimming. The recovery was not remarkable in sucrose administered rats, especially in liver.
4) Total protein concentrations in serum were kept almost the same in all groups. Transaminase activities (GOT & GPT) in serum were increased slightly after exercise, however, lactic dehydrogenase activities were decreased. No special changes in enzyme acitvity of serum were found amoung the experimental groups treated with sugars.
