[Glycogen content and phosphorylase activity in various muscles of rats and gophers during hypothermia, metabolic heating and hibernation].

Hypothermia (30 and 20 degrees C) of rats and gophers did not decrease the level of glycogen and did not change the activity of phosphorylase in musculus masseter, musculus gastrocnemius, musculus soleus. In musculus trapezius of rats the content of glycogen decreased by 34.5% under cooling down to 30 degrees and by 59.5% under cooling down to 20 degrees. A fall in muscular glycogen was observed under self-heating of rats and gophers after 20 degrees hypothermia and especially in awakening from hibernation. The portion of phosphorylase a increased in muscular tissues of gophers during a three-month hibernation (10-12 degrees) and awakening.