Fasting during Ramadan introduces unique physiological challenges, particularly in maintaining stable blood sugar levels.

This is because it is caused by a depletion in the body's store of glycogen — a type of glucose that is stored in liver and muscle tissue. Related: What causes you to get a 'stitch in your side'?

Methods: Glycogen content and activity of muscle enzymes with regulatory functions in glycogen synthesis were examined. Results: Testosterone treatment increased glycogen content of extensor digitorum ...

Conclusions: As seven subjects completed the time trials with the same end exercise muscle glycogen concentrations, diet induced changes in pacing strategies during the time trials in these subjects ...