Time and again, expert studies have shown that total body cardiovascular exercises are most effective in eliminating excess body fat. There’s no way to bring out the striations and contours of the abdominal muscles to show a 6 pack unless the belly fat is reduced enough.
Exercises that build muscle tissue speed-up the body’s metabolism, making it easier to get rid of stored fat. Total body aerobic exercises that keep the heart rate at raised levels burn calories and reduce body fat effectively. There is some debate however as to what intensity levels the heart rate should be at.
There’s low intensity cardio exercise and those done at high intensity (around 90% of the maximum heart rate). The low-intensity theory is has more followers because although workout sessions are longer, they’re relatively easier and so beginners, the aged and obese can execute them.
Another aspect the low-intensity cardio theory has going for it is that it’s a proven fact that exercises done at low-moderate intensity over an extended period targets body fat as the only source of calories used up. Exercising at intense levels actually cause the body to use up carbohydrates as well as fat for energy also.
The stored form of carbohydrates in muscle tissue is known as glycogen and it is needed in proper muscle formation. In losing weight and getting 6 pack abs, it is important to maintain as much muscle as possible because it helps keep the body’s metabolism high.
On the other hand, high intensity exercises burn loads of calories even if done for just 10-20 minutes. This means considerably less time can be spent in the gym and proponents say the lost glycogen can just be replaced anyway by eating carbo-rich food after working out.
High intensity theorists say that intense exercise in even help develop more muscle as a result of harder physical effort required to execute them. It’s also been discovered that a person’s metabolic rate stays at elevated levels hours after having finished with the workout. This means even more calories spent and more body fat curbed.
Low-intensity exercises may not be for people that are on a tight schedule because aside from hour-long sessions, it takes a full 10 minutes for the fat-burning effect to kick-in after beginning the workout. Intense cardio exercises, although more potent in the calorie-burn department may not be for everyone because of its difficulty.
