Effect of different endurance training intensities on Glycogen levels liver and muscle in rat

Increase glycogen content of skeletal muscle and liver after endurance-trained has beensuggested. The aim of this study was to investigate the effects of endurance training atdifferent intensities on liver and skeletal muscle glycogen content. Forty male Wistarrats were randomly assigned to control (n = 10), low (18 m/min)(n = 10), moderate (26m/min)(n = 8) and high (34 m/min)(n =10) intensity groups. The training group ranfor 60 min/d, 5d/wk and 0% grade for 12 weeks. 36 hours after the last exercisesession,overnight fast rats were killed liver and gastrocnemius muscle were collectedand measured by spectrophotometeric method. One way ANVOA, appropriatefollowing test were performed, and significance was accepted at P≤0.05. Regardless tointensities, data demonstrated that trained groups had higher liver and lower muscleglycogen contents when compared with control group. Higher liver and muscleglycogen were pronounced in moderate exercise group. It seems that moderate intensityexercise suitable for liver and muscle glycogen improvement.