Why is it that when we exercise,we have stronger muscles?

Question

I understand that when we exercise often,we will get healthier. But how does exercising often helps to make our muscles stronger? Please answer scientifically.=)thank u!

i need serious science language and not normal language...Pls...I need help from a biologist or doctor or gym trainee..=)

Answer 1

exercise causes a certain amount of wear and tear on the muscles, tendons, and joints. During recovery form exercise physiological processes repair the strained tissues and overshoot the original (untrained) untrained conditions by increasing the storage capacities (water, energy and nutrients) and strengthens the tissues (this is an adapted condition)

Answer 2

I work out regularly and I think the key is resistance. The more resistance your muscles encounter lifting weights the more they will grow to cope with the extra effort. I think the body has a built in survival mechanism which promotes physical adaptation so the greater the effort and physical stress the greater will be the tissue growth.

Answer 3

The muscles expand and contract and most of the time we exercise until they tear. That's why we feel the need to give ourselves a break, and while we take a break from exercising, the muscle rebuilds stronger than before!

Answer 4

Exactly, I want a great physique without all of that exercises crap..I get jealous when guys don't have to do anything to keep their tone...Have you ever noticed that on the tribal people, they may be active in hunting and fishing, but they don't work out with weights? Why are they toned to perfection?

Answer 5

Muscles are made of fibers of meat. When those bands get stretched, it tears them a bit I think, then when they repair they are a little stronger.

Answer 6

It's less true when you are old.