S-posture is used to describe a posture that occurs when your shoulders are slumped forward at address and you have a definitive roundness to your thoracic spine.

This posture is basically described as an excessive roundness in your upper back caused by the following:

• Lower crossed syndrome – tightness in the hip flexors and lower back and weakness in the abdominals and glutes
• Golfer does not understand how to bend from the hips correctly to address the ball
• Golfer has been told to stick their tailbone out at address
• Lack of abdominal strength or relaxing of the abdominal musculature
• Too much flex in the knees with torso to upright

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