In order to prevent the golf club from coming over-the-top during the golf swing several physical characteristics must be developed. It is important to develop a proper weight transfer from your back foot to your front foot in order to start the downswing in the proper sequence. Without this initiation of the lower body during the transition a player can easily dominate the downswing with the upper body. A downswing that is initiated with the upper body usually results in the over-the-top swing plane. A proper weight transfer requires several physical factors including good balance, a strong core, and the ability to separate the lower body from the upper body.
Other causes include: