u use your upper leg muscles.
there are 36 muscles in a run mile
Fats.
The muscles you use when you are running are your Deltoids, Triceps, Biceps but the main ones are your Gluteus Maximus, Harstring, Goutocnemuis, Abdominals and Quaddriceps.
36
Three types of muscles when you run; primary, supporting and auxiliary
When You use A set of muscles,The blood flows to them so you can exersice longer.
It uses thousands of muscles
67
9 big muscles are used to throw a ball
They use their strong hind muscles to help them push foward, jump, or run.
35