"Glycogen synthesis" refers to the process in which our body converts excess sugar or glucose into a stored form called glycogen. It acts like a backup fuel source, which can be quickly broken down when our body needs extra energy. Full definition
This study looked at the rate of muscle glycogen synthesis during 2 and 4 hours of recovery after depletion by exercise using two energy equivalent carbohydrate drinks. (bodybuildingforyou.com)
Muscle glycogen synthesis after exercise: effect of time of carbohydrate ingestion. (precisionnutrition.com)
This is likely due to a reduction in glucose uptake and glycogen synthesis [11]. (coachcalorie.com)