Golf swing training apparatus for maintaning arms in proper position throughout a golf swing and method of using the same

An apparatus configured to be held between a user's forearms during a golf swing. The apparatus can be a spherical, inflated ball. The apparatus may be further secured using a lanyard or similar article worn around the golfer's neck. In practice, by maintaining the inflated ball positioned between the forearms during the golf swing, the golfer is maintaining his or her arms in the proper position. If the inflated ball falls or fails to remain held in place between the forearms, the golf swing is poor (i.e., the arms have separated too much). Other spherical members can be used as well.