HOW FLAT FEET CAUSE KNEE PAIN

 When performing any squat or leg press variation, the knees should stay in line with the feet.

Being flat-footed, either in one foot or both, can cause the knees to drive inward of the feet, which can cause unwanted forces on the knees.

The Foot:

Be conscious of what’s happening at the foot during the squat or leg press
Work on the building the arch in foot
See a foot specialist

The Exercise:

Keep the knees in line with the feet
Improve hip mobility to help drive the knees out
Have the form assessed by a coach
See a professional if knee pain exists/persists

 Video footage can be taken from the front of the squat to see what the knees are doing during the squat.