Pre Foot Flat

  • Initial Contact Lateral border of heel

Foot Flat 

  • At this point, the foot normally pronates (hip drive pronation).  This pronation is so subtle that it cannot be detected visually.
  • However, the foot is abnormally pronating.

Midstance

  • The foot continues to pronate (gravity drive pronation)
  • Hip drive should be engaged at this point and supinating the foot

Pre Heel Lift

  • The foot continues to pronate (gravity drive pronation)
  • Hip drive should be engaged at this point and supinating the foot

Heel Lift

  • Foot motion is now controlled by the Windlass Mechanism
  • Foot is supinating (note the decrease in foot pronation)


Differential Treadmill Analysis:

PreClinical Clubfoot Deformity

  • Gravity Drive Pronation from Foot Flat to Pre Heel Lift

Rothbarts Foot

  • Hip Drive Pronation during Foot Flat
  • Gravity Drive Pronation from Midstance to Pre Heel Lift

Courtesy of ShoeOnTheWeb

Inventor and Designer of Postural Control Insoles

PreClinical Clubfoot Deformity

Gait Pattern  Heel Contact to Heel Lift Engaged in Gravity Drive Pronation