“Here is a quick and easy recap of the most common dysfunctions revealed by the SLS test and what they might mean.
- Elevating the rib cage when breathing / holding breath during test at any stage = poor intrinsic core stabilization. Assess the diaphragm for dysfunction.
- Stance-leg toes gripping the ground = instability of the foot; poor stability in the stance leg / glute max inhibition.
- Rotated shoulder or pelvis = poor patterning in the Ant.Oblique Sling and Post.Oblique Sling.
- Flexion at the waist = decreased extension in the stance-leg hip or inhibition of the contralateral psoas.
- Trendelenburg sign = inhibition of the stance-leg glute medius or contralateral quadratus lumborum.
- Eyes look anywhere other than straight ahead = eye muscle facilitation (very common in post-traumatic neck injuries).
- Head tilt / rotation = sternocleidomastoid / scalene dysfunction.”
- Amount of pre-shift to the stance leg (should not be over 1″)
- Inability to hold for 15 seconds
- Elevation of contralateral shoulder (indicates an overactive UT which could be facilitated with each step)
- Hip hiking
Inhibition/Weak lateral pelvic stabilisers produce:
- Lateral pelvic shift
- Contralateral hip drop
- Medial rotation of femur (TFL > Gmed, Gmin and deep 6)
- Excessive activity of knee, Tib Ant or toes indicates poor proprioception.
Jandas Assessment and Treatment of Muscle Imbalance