Anybody can train themselves to become quicker and agile. If you’re into non-linear sports like basketball, football/soccer, tennis, badminton and baseball, just to name a few, you should concentrate on agility and speed training so that you won’t lose your balance, coordination and reflexes while playing your game. That is agility. If you think that you lack this, you need to find someone who can train you. But if you can’t find one or you don’t have the time to be trained by other people, the best alternative is to find a good learning tool on the Net like “Truth About Quickness” and use it at your own pace and time.