Normal Foot Pronation - Observed in the Plantar grade foot

Also referred to as:  Hip Drive Pronation

Normal (Hip Drive) Foot Pronation.  Stance phase Foot motion (pronation/ supination) is driven by the Clockwise, Counterclockwise rotations of the pelvis

  • Clockwise rotation of the pelvis, pronates the left foot, supinates the right foot
  • Counter-clockwise rotation of the pelvis, pronates the right foot, supinates the left foot


Gait Analysis - Right Foot


From Heel Strike to Flat Foot, the pelvis is rotating Counter-clockwise  (See Animation Above)  

  • This Counter-clockwise rotation pronates the right foot.  
  • Foot pronation unlocks the forefoot and allows it to adapt to uneven ground surfaces.

From Flat Foot to Heel Lift, the pelvis is rotating Clockwise  (See Animation Above)

  • This Clockwise rotation supinates the right foot.
  • Foot supination locks the forefoot and allows it to function as a rigid lever at Toe (Push) Off (Zitzlesperger, 1960).


References
    Zitzlesperger S 1960.The mechanics of the foot based on the concept of the skeleton as a statically indetermined space framework. Clinical Orthopedics, 16:47-63
    Rothbart BA 1973. Part I. Biomechanical analysis of a normal gait pattern.  Journal Canadian Podiatry Association, (3):3-7.
    Rothbart BA 1973. Part II. Biomechanical analysis of a normal gait pattern.  Journal Canadian Podiatry Association, (4):1-12.