I recently came across this great video from Tony Morgan and Golf Science Lab explaining what s-posture is the impact it can have on the golf swing: The video also covers drills to help the golfer get out of s-posture at set-up and here is where I wanted to add my two cents for what it is worth. S-posture is not just for the golf swing That extended lumbar spine and anteriorly tilted pelvis position, golfers refer to as s-posture, is actually a really common postural dysfunct