The sagittal plane facilitation theory is a clinical theory or model of foot and lower limb biomechanics that is primarily concerned with facilitation motion in the sagittal plane as opposed to other models of foot biomechanics that are based on...
Helbing sign or Helbing’s sign is an observation of the alignment of the Achilles tendon from behind when weightbearing. It is seen as the amount of concavity or medial bowing of the Achilles tendon as the calcaneus everts past vertical. It...
The navicular drop is a clinical assessment measurement or observation of how much the navicular moves in the sagittal plane between either:1. Subtalar joint neutral and subtalar joint relaxedor2. The foot on the ground rested seated and then full...
The term ‘too many toes sign’ is widely used when looking at someone standing or during a gait analysis. It does not mean that someone has more than five toes on their foot. When someone is standing or walking and you are watching them...
An abductory twist is a sudden and abrupt abduction of the rearfoot just as the heel is coming off the ground during gait. The abductory twist on its own is not necessary a problem and it really just a sign of an underlying problem that may or may...