Treadmill Analyses - Primus Metatarsus Supinatus Foot Structure (aka Rothbarts Foot)
Frame 1 - Black Arrow, Left Foot - at heel contact foot is slightly supinated
Frame 2 - Red Arrow, Left Foot - at midstance foot is pronated (Gravity Drive/Abnormal Pronation)
Frame 3 - Red Arrow, Left Foot - Early Heel Lift, foot remains pronated
Frame 4 - Black Arrow, Left Foot - windlass mechanics kicks in, left foot starts to resupinate
Professor/Dr Brian A Rothbart