Does Running/Aerobic exercises, make you lose muscle mass?

Answer 1

quite the contrary, your muscles are being used and thus when you up the intensity they grow . that is, if given proper rest. running and aerobics can be over done and when combined with a reduced calorie diet can strip muscle.

Answer 2

It can. It really depends on what you're trying to develop. Bodybuilders and powerlifters in a building phase generally will not do cardio because cardio is generally anabolic.

As mentioned above, there are basically three types of muscles (Type1, 2a, 2b). Type 1 muscle fibers are utilized most for endurance activities and don't tend to grow much. Type 2a/b muscle fibers, on the other hand, are the fibers that are employed for short bursts of power and strength and tend to grow large when developed. So, endurance athletes tend to be leaner and thinner than strength and power athletes.

So in a sense, aerobic exercises do build a certain type of muscle mass, but it's a type that doesn't get big. If you're trying to build large lean muscle mass, then you do need to cut down the cardio.

Answer 3

Yes and no. Let me explain. Running/Aerobic uses mostly one of the 3 muscle fibers that all our muscle groups contain. They work very much like the 3 speeds of a stick shift car, the No. 1 is powerful but slow, 2 is in-between and 3 is not powerful but fast. Running uses No. 3, weight lifting uses No. 1 fibers. If you run but don't eat enough protein, the body will remove protein from the muscle that is least being used (No.1).
The body can't survive without adequate amounts of protein and will take it from anywhere it can, even from your heart, after the muscles area gone!!!
In conclusion, to maintain your muscle mass, practice weight training. But keep up your running, in moderation it is excellent. But don't forget the right amount of protein (which is proportion to your size and the amount of exercise you do).
Hope that helps.
R.

Answer 4

I suppose if you had nice strong arms but otherwise you were very thin and you just ran and didn't eat enough to keep up the same weight and never exercised your arms either, your body would run out of fat to burn and have to start removing muscles you didn't use.

Answer 5

Yes to an extent. If you just do cardio, without resistance training, you lose more muscle than with resistance training combined.

Lose muscle = Lower resting metobolic rate = Burns Less Fat.

Answer 6

Usually not, but if you run a lot and try to bulk up then you will not gain much muscle. You can mantain your muscle while running a lot, but building is hard to do.

Answer 7

it give a more leaner muscle than mass muscle.