SS cardio uses primarily fats for energy.
Sprints use glucose, however create a greater EPOC than SS cardio.
Both ways can expend the same number of calories, however a lot of people want to do low-intensity cardio because more of the calories will come from fats.
Which I don’t get because a deficit is a deficit, but whatever.[/quote]
Thanks for your input.
If the only reason you are doing the cardio is to create a calorie deficit, wouldn’t it be much easier to just eat less calories rather than to burn them through exercise? [/quote]
The less you eat (read: food that physically goes in your mouth and through your body, not talking about net calorie balance) the slower your metabolism gets.
If you continuously and systematically lower your calories in an effort to lose fat you’ll end up accomplishing a few things. These “things” are not good for body composition. You’ll slow your metabolism making the whole process more arduous AND your body will think you are starving and will begin to burn muscle and store fat in an effort to save itself from this “perceived” threat.
The more you eat while still remaining in a caloric surplus the better chance you give your body to burn fat.
That’s about as simple of an explanation as one can give. And after being a member on this site for 3 years you really should have these concepts drilled down. Honestly.
Did you think people simply enjoyed using the stepmill while trying to get to 3% bodyfat to win their BBing show?
That makes sense. I have realised that part of my confusion has been due to me underestimating how many calories can be burned through exercise. My initial thought was that if cardio reeduced fat only through helping create a caloric deficit, it would be much easier to simply reduce caloric intake slightly. However, I now realise that to match the calories burned through exercise with not eating could actually involve a substantial reduction in calories which would not be beneficial for the reasons you have outlined.
If, however, cardio does only reduce bodyfat by helping you achieve a caloric deficit, why do people recommend you do it whilst bulking to ‘keep fat levels in check’? If you are bulking you are still going to be eating a surplus of calories even with the cardio, so how does it keep bodyfat in check? Is it simply a matter of reducing your caloric surplus for that particular day, which may lead to less fat gain?[/quote]
Doing cardio makes your body burn calories. The more calories you burn the more your metabolism works.
That’s really all it is.
I dont really believe theres truth to “keeping bodyfat in check” through cardio if you look at it from a day to day basis. You are being way too general about all of this entirely. There are many more things going on than just a caloric surplus or deficit. Caloric balance is stresed as much as it is because its the first thing that needs to be addressed.
What your body does with the energy you consume is more complicated than what you are saying with things like “keeping bodyfat in check”