The Golf Fitness Fix: Sway and Poor Rotation
Do you struggle with lower body rotation in the golf swing? Suboptimal rotation can be a result of sway, or excessive movement away from the ball in the backswing.
In this picture, you can see sway in the golfer on the left and proper coiling in the golfer on the right. Ideally, we want to see the upper body coil on top of a stable pelvis and trail leg. A proper coil allows the body to store energy for power, and maintain posture for better consistency. In addition, loading the trail hip in the backswing is a prerequisite for good lower body rotation in the downswing.

Sway can be caused by various physical limitations such as a lack of flexibility, poor strength, or bad coordination of movements. Regardless of the limitation, the Lateral Lunge with Rotation is a great exercise to give the golfer the feeling of proper coiling and stability in the backswing:
Here are some other exercises for sway and rotation improvement:
If you try these exercises and you find them to be too challenging or uncomfortable, do not continue, until you have consulted with your physician.
All exercises for golf should be customized to your needs after a proper evaluation.