Three types of muscles when you run; primary, supporting and auxiliary
Run many miles.
run
The hamstring is the main muscle you use to run. It's more common to had an injury.
no. Yes. It does. When you run you are trying to push the ground away from yourself almost and then you kick away backwards. Also, when you run uphill, you use alot of butt muscle.
Parallel
These muscle fibers are said to be lateral.
The muscle fibers of an earthworm run vertically along the entirety of the worm.
Transversus
rectus abdominis
to stay in shape and build endurance and leg muscle
rectus abdominis
Running will not be enough to build muscle. If increased muscle mass is your goal, incorporate sprint and muscle training.