Final answer:
The three energy systems that supply energy to a person's muscles during exercise are the Creatine Phosphate System, Glycolytic System, and Aerobic System.
Step-by-step explanation:
The three energy systems that supply energy to a person's muscles during exercise are:
- Creatine Phosphate System: This system provides immediate energy for muscle contraction and is used during short, high-intensity activities that last up to 10 seconds.
- Glycolytic System: This system uses glycogen stored in the muscles to produce ATP through a process called glycolysis. It provides energy for moderate-intensity activities lasting up to 2 minutes.
- Aerobic System: This system relies on oxygen to break down glucose, fats, and sometimes proteins to produce ATP. It is the primary energy system for long-duration activities like endurance exercises.