There is alot of movement involved and most of the time you are using all of your muscles. If you don't stretch and work on your flexibility you probably will have cramps, and not be at your best at sports. You also will become sore with flexibility.
Basketball, and football are the two main sports important to us
its not
Sports are important for physical activities, health, strength, fitness and to keep people from obesity, diseases and more.
sports are equally important as studies beacause you would be fat if you didnt have them
In childhood sports are important to get rid of excess energy and foster team spirit. As we get older, into youth, sports become more competitive and demanding. In adulthood sports are a form of relaxation, but also big business.
how important is sport in children
With the possible exception of describing them sports are relatively unimportant to wikipedia.
yes it is
very
so you either get in or out :)
The reason there are tutorials in sports before you play is so you understand how to play
what are important speed, velocity and acceleration in several sports