Final answer:
A 30-minute jog would rely most heavily on aerobic metabolism in the muscles of the sprinter.
Step-by-step explanation:
A 30-minute jog would rely most heavily on aerobic metabolism in the muscles of the sprinter. During moderate-intensity activities like jogging, the body primarily uses the aerobic energy pathway which utilizes oxygen to break down carbohydrates and fats to produce ATP, the energy molecule.