Rule 4: Guarding is the act of legally placing the body in the path of an
offensive opponent. There is no minimum distance required between the guard
and opponent, but the maximum is 6 feet when closely guarded. Every player is
entitled to a spot on the playing court provided such player gets there first
without illegally contacting an opponent. A player who extends an arm, shoulder,
hip or leg into the path of an opponent is not considered to have a legal position
if contact occurs.
Rule 10: A player shall not hold, push, charge, trip or impede the progress
of an opponent by extending arm(s), shoulder(s), hip(s) or knee(s), or by
bending his/her body into other than a normal position;