no one asks u to sprint right? if u do, of cos there wld b
injuries..
e main point is to jog, to feel and get warmed up. tis is to help
loosen up ur muscles..then u can stretch better, lik normal rubber
bands. however, when u stretch, pls dun bounce..hold it there then
let go..
if u jus stretch when ur muscles are 'cold' they are hard, jus lik
frozen rubber bands..if u jerk ur cold muscles, injury can
occur...