Final answer:
Hyperosmosis in muscle cells during a Wingate sprint is counteracted by actively transporting solutes out of the cells.
Step-by-step explanation:
During a Wingate sprint, hyperosmosis in muscle cells is counteracted through various mechanisms. One important mechanism is the active transport of solutes out of the muscle cells. As the muscle cells contract and utilize ATP, the concentration of solutes inside the cells increases. To maintain osmotic balance, solutes such as Na+ and Cl- are actively transported out of the cells. This helps to prevent hyperosmosis and maintain normal cell volume.