Final answer:
Sprinting increases a person's heart rate the most.
Step-by-step explanation:
The activity that increases a person's heart rate the most is sprinting.
When you sprint, you are running at your maximum speed, which requires a lot of energy from your muscles. This intense physical activity puts a significant demand on your cardiovascular system, causing your heart rate to increase.
Compared to talking, walking, and jogging, sprinting puts the highest stress on your heart and leads to the greatest increase in heart rate.
Learn more about Impact of different activities on heart rate