Posted: 23/02/2014 at 20:36
Can you see how far in front of the hips the foot lands from behind?
Can you see the angle between the base of the ankle and the knee during foot strike from behind?
Can you see if the runner plantar flexes just before the foot leaves the ground suggesting a 'push-off' from behind?
Can you see if the knee straightens before the foot pulls off the ground from behind?
Can you see if the runner lands with a straight knee from behind?