This maneuver (See Animation below) helps determine whether the observed leg length difference (discrepancy) is functional or anatomical. If after performing the Pelvic Thrust (frame 2), a leg length difference is still observed, it is most likely due to one leg being structurally shorter than the other (anatomical).

Prof/Dr Brian A Rothbart
Chronic Pain Elimination Specialist
Discovered the Rothbarts Foot Structure and the PreClinical Clubfoot Deformity
Developer of Rothbart Proprioceptive Therapy
Inventor and Designer of Rothbart Proprioceptive Insoles
Founder of International Academy of Rothbart Proprioceptive Therapy
Author of Forever Free From Chronic Pain
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