Sprinting will help you burn fat and burn fat faster than a lower intensity workout such as jogging or going for a long run. Cardio fitness helps the ability of your heart to pump stronger and more efficiently and your muscles to use oxygen more efficiently. The pounding of weight-bearing activities like walking and running may cause more fat burning than a seated exercise like biking, or an activity like swimming where there is no pounding at all.
Try this workout: A is for beginners, B is for more advanced
Warm up walking & stretch 5 minutes
A- march in place 3 minutes
B-skip for 3 minutes outside or treadmill
A- 10 reverse lunges each leg
B- 10 jump lunges each side
A- 10 push-ups standing against wall
B- 10 military push-ups
A- walk or jog 10 minutes
B- sprint 10 minutes,( 30 sec sprint, 30 sec walk)
Repeat entire workout out 3 -5 times.
Answer: The “fat-burning zone” lies between 50 and 70 percent of your maximum heart rate. When you exercise at this low intensity, your body draws energy from fat. As your heart rate goes up, more energy comes from carbs. So it seems logical that to lose fat you should keep your heart rate low. But that’s not the case.
Doing cardio at higher intensities causes you to burn a lower percentages of fat calories in favor of carbs, but you use more total calories. And that’s the key to slimming down. Plus, since you torch more total calories, the absolute amount of fat burned actually increases too.