If exercising means you strain muscles to grow them, why does straining your back hurt it instead of making it stronger?

Question

If exercising means you strain muscles to grow them, why does straining your back hurt it instead of making it stronger?

In: 489

Answer 1

Strain for growing muscles is moving the muscle along it’s normal motion, with something resisting that motion. The motion is done repeatedly, usually until the person feels weak or cannot do the motion from weakness.

When you strain a muscle you are usually moving the muscle through a motion that is not normal, with too much resistance, and it’s usually only a single movement.