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 Hang Time - Can You Develop Yours?

Coming down the court, a player jumps and the laws of physics take over. The laws state that the first action causes another action that is equivalent in strength but in the reverse direction. What this means in layman's terms is that the player pushes against the floor and the floor exerts a force back. This action/reaction makes the player to leave the floor. The more force the player uses while pushing against the floor, the more force the floor exerts back - resulting in the player going higher into the air.

If a player is running through the jumping process, his/her center of mass follows a parabolic path, which in essence looks similar to a rounded off mountain peak. A persons "center of mass" is located near their midsection. This means that, if the person were to stay in precisely the same position for the extent of the whole jumping action, his/her midsection (and consequently, entire body) would follow this path. Typically though, a player does not remain in the identical position. He will bend and twist.

By raising his knees, he's raising his center of mass relative to his head. He does that on his way up. On the way down, of course, he lowers his legs back down and that, in turn causes the center of mass to come back down. This in effect raises his head in relation to the center of mass. The head does not follow the parabolic path. The head stays at one height.

So what you get is for a part of the period in the air, the head stays at the same height, but ,all through the entire time the center of mass goes up and down.

In essence, the player's head is the key to why we believe in hang time.

When one person looks at another, they tend to not look at the center of their body. We typically concentrate on a person's head (or at least the upper part of the complete body) . What happens at that moment is a bit of an "illusion", but it really is happening. The head stays in the same place for an unnaturally extended time because the person changes his center of mass.

Well, if "hang time" is not real, how is it that one person can stay in the air longer than another person? It comes down to the reality that one person can JUMP HIGHER than the other! If you can't increase your hang time then, you have to learn to jump higher!

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