by Dr. Greg Rose via MyTPI.com
Eliminating the Sway
The “Sway” swing fault refers to any excessive lateral motion of the lower body away form the target on the backswing. This can lead to reduced lower body speed, poor trunk stability, and limited power in the golf swing. I have found that placing the player on a lower body stabilization / mobilization program is one of the fastest ways to clean up this swing breakdown. The following is my guideline for attacking this swing fault in the gym.
Establish ankle pronation:
One of the most common causes of excessive sway is limited ankle pronation. In other words, if a player does not have the ability to evert or pronate his trail side ankle, they usually have difficulty keeping their weight on the inside portion of their back foot on the backswing. If the player actually supinates the back foot, this will absolutely create the sway. So if you have a player who if flat footed and is already hyperpronated, the only thing their foot can do is supinate. Therefore, they usually supinate on the backswing and start to sway. On the other hand, if the player has reduced ankle range of motion (like players with excessively high arches – rigid foot) they might also have difficulty keeping the weight on the inside of their trail foot.
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