Drive your thighs and knees forwards, not up and down,' says Yessis. 'The stronger the forwards drive, the longer your stride and the greater your speed.'
Any sideways leg motion is inefficient and can precipitate knee injuries.
Running in criss-cross fashion (pigeon-toed) is a sign of overpronation and should be corrected with shoe inserts or orthotics.
By Words: Bob Cooper
March 2003
Stretch: good morning.
Stand with your feet hip-width apart and your hands behind your head. Bend forwards at the hips, keeping your back straight, until you feel a stretch in the hamstrings.
Drive your thighs and knees forwards, not up and down,' says Yessis. 'The stronger the forwards drive, the longer your stride and the greater your speed.' Any sideways leg motion is inefficient and can precipitate knee injuries.
The costliest mistake runners make is landing on their heels [with toes pointed up] well ahead of their body, which inflicts destructive braking forces,' says Yessis.