If you’re doing an intense exercise like sprinting or lifting weights, your body switches from oxidizing fatty cells to produce ATP, to burning glycogen/carbs to replenish ATP stores. Glycolysis produces large amounts of ATP, but the buildup of hydrogen ions and lactate make its production unsustainable over long periods of time.
Kama wewe ni kufanya zoezi makali kama sprinting au kuondoa uzito, mwili wako swichi kutoka vioksidishaji seli mafuta ya kuzalisha ATP, kwa kuchoma glycogen / carbs wa kujaza maduka ATP. Glycolysis inazalisha kiasi kikubwa cha ATP, lakini buildup ya ions hidrojeni na lactate kufanya uzalishaji wake usio endelevu juu ya muda mrefu.