A proposed biomechanical explanation is that restricted ankle joint dorsiflexion directly results in overpronation of the foot, which causes internal rotation of the lower extremity, which strains the external/abductor musculature, which can then no longer prevent femoral adduction; hence genu valgus.
So, if hip abductor group on one side is tighter at baseline tone than the hip adductor group on that side, the pelvis will be pulled into depression on that side, resulting in a lumbar scoliosis that is convex on that side. Similarly, tight opposite-side hip adductor musculature can cause the same scoliotic curve.
For the long term treatment of plantar fasciitis, the underlying cause of the overpronation (collapsed arch structure), if present, must be addressed.
The most common symptom of plantar fasciitis is pain, usually worst in the morning, on the plantar side of the foot, located near the calcaneal attachment.
Case Study: Kerrati came in for wellness massage, but during the postural examination, the therapist noticed that her right arch drops markedly.
Evertor muscles of the foot should be strengthened in a client who has the postural dysfunction pattern of overpronation (dropped arch).
The role of manual therapy for a rigid flat foot (overpronation) is to loosen fascial adhesions that are locking the bones in a position of pronation.
The first and most obvious sign of overpronation is a flat foot / dropped arch. A supple flat foot loses the arch only when weight bearing.
A supple flat foot is caused by either lax ligaments and/or weak musculature that cannot support the arch when weight-bearing.