S-Posture is a swing characteristic caused by the player creating
too much arch in their lower back by sticking their tail bone out
too much in the setup position. This excessive curvature in the
lower back puts abnormally high stress on the muscles in the lower
back and causes the abdominal muscles to relax. The deactivation
of the core muscles can cause a loss of posture or reverse spine
angle during the backswing. This, in turn, puts the lower body out
of position on the downswing and will affect the swing's sequence
of motion.
Sometimes the S-posture is actually caused by a series of muscle
imbalances called a Lower Crossed Syndrome (LCS). One of the most
clinically relevant patterns of muscle dysfunction is a lower
crossed syndrome. Simply stated, the lower crossed syndrome is a
grouping of weak muscles combined with overactive or tight
muscles, that create a predictable movement pattern in the lower
back, a pattern that can lead to injury.
LCS is basically the combination of tight hip flexors and a tight
lower back, paired with weak abdominals and weak glutes. This
combination leads to an excessive arching or rounding of the lower
back (swayback), a flabby or protruding abdomen, and a flat butt,
dure to weakness in the glutes. This is a combination of muscle
imbalances that causes excessive stress on the structures of the
lower back.
We use the Pelvic Tilt Test,, Bridge w/ Leg Extension Test
and the Leg Lowering Test to screen for S-Posture.
B A S I C S W I N G F A U L T S
