Wheelchair basketball
Types in wheelchair basketball plays an important undertakings in the sport as the order uses total points of players to come to a decision about who can be on the basketball court.  The system of ordering for the sport are 1 point player, 2 point player, 3 point player, 4 point player and 4.5 point player.   The higher the point number, the greater the player's able to use body power to play wheelchair basketball. With five players on the basketball count, the total number of points may not be greater than fourteen.  There has been supported views put forward as to errors of the order system as being overly complex from players, coaches and leagues. These criticisms have been printed materials in theory but not doing research made public in 1986, 1990, 1995 and 1997.