there are 36 muscles in a run mile
It takes 6 main muscles to run!!!
over 200 muscles
Three types of muscles when you run; primary, supporting and auxiliary
Four muscles.
49 muscles to cry, 12 muscles to smile and 6 muscles to slap
You would need about 14 muscles to sneeze.
43
One
All of the required muscles.
because your blood carries oxygen to you muscles. without much oxygen blood won't be able to take lots to your muscles, and with little oxygen your muscles won't work as well and therefore you won't run as quickly :)
Not much