Aerobic training such as walking, riding a stationary bike, or running is a good way to accelerate the fat burning process, as long as it is not overdone and as long as it is used only in addition to a good weight training program. It should never be used as a substitute for weight training since it does not permanently increases your metabolism and since it does not has the ability to re-shape your body.
Fat Burning Zone
In order for aerobic exercise to be effective, it needs to be performed within the fat burning zone. The fat burning zone is the zone at which you are doing enough work to burn fat. Your pulse (how fast your heart is beating per minute) determines this zone.
The fat burning zone formula is the following:
Fat burning zone=220-(Your Age) x (.75)
The result of your formula will give you an approximate value of how fast your heart should be beating per minute. For example, a 20-year-old would need to reach a pulse in the neighborhood of 150 beats per minute in order to be in the fat burning zone. It is important to remember that this is not an absolute figure, this is an approximation. So as long as you are plus or minus 10 beats from the number that the formula provides you with, then you can rest assured that you will be burning fat.
Best Times To Perform Aerobic Activity
Another important point that needs to be raised is that in order for aerobic exercise to be an effective fat burner it needs to be performed at the appropriate times. There are only two times that aerobic exercise is effective in burning fat.
Forms of Aerobic Exercise
Good forms of aerobic exercise are: stationary bike, jogging (this can also be done on a treadmill), fast walking (also can be done on a treadmill), stair stepper, elliptical machine, rowing machine, sets of sprinting, running, or any other form of cardiovascular activity that would raise your heartbeat to the fat burning zone.
Frequency and Duration of Aerobic Exercise
As far as frequency is concerned, I feel comfortable recommending 2 to 4 sessions of 20-40 minutes each for male bodybuilders in the off-season. If a contest is approaching, then I would gradually increase the activity to no more than two sessions per day, 7 days a week of 45 minutes each on the worst case for a short period of time. Remember, it is those long hours of cardio that cause bodybuilders to look like POWs (Prisoners of War) in the bodybuilding stage the day of the show. If you are doing 2 sessions of 45 minutes of cardio every day make sure that you take plenty of glutamine (15-30 grams per day) in addition to having at least 7 meals per day.
For women, due to their higher concentrations of estrogen in the blood and due to the fact that they have less muscle mass than a male, more frequent aerobic activity is beneficial. Therefore, I recommend an off season plan of 4 to 5 sessions of 30-45 minutes and if a contest approaches, I would gradually increase the activity to no more than two sessions per day, 7 days a week of 45 minutes each on the worst case.
Cycling of Aerobic Activity
During the off season, you may choose to cycle you aerobic activity in the following manner in order to prevent your body from adjusting to a specific pattern:
Conclusion
So there you have it. Now whenever you think about aerobic exercise, you no longer have to fear two hour sessions in a machine or losing muscle mass provided you follow the basics of aerobic training.