Assuming you mean back and forth from sideline to sideline or baseline to baseline, that would be called a suicide.
Moving back and forth in time is called time travel.
Reciprocating.
That is called oscillation.
Vibrations
I believe that it's just like basketball - dribbling. According to Webster: http://www.merriam-webster.com/dictionary/dribbling
Because the river want to turn 180 degree.
It is called vibrations.
That motion is called oscillation. It refers to a regular back and forth movement typically around a central point.
i think that basketball does help your mucles because bouncing the ball and running back and forth on the court helps your mucles grow
A back and forth motion is called oscillation. It involves movements that go in one direction and then reverse to go back the other way, typically occurring in a regular pattern.
Strokes.
It is commonly known as a basketball backboard.