Joint mechanics · 2 min read
Rethinking “knee over ankle”
A familiar cue can be useful, but it is not a universal law of knee safety.
Knee-over-ankle is an easy visual checkpoint, yet healthy knees routinely travel beyond the toes in stairs, running and squatting.
Load is contextual
Knees travel beyond toes in stairs, running and squatting. Whether that position is appropriate depends on depth, speed, fatigue, symptoms and prior capacity. One visual relationship cannot answer all of those questions.
Watch whether the student can control the path, maintain foot pressure and breathe without apprehension. Those observations are more informative than enforcing a photograph.
Cue the whole base
Invite contact through heel, big-toe side and little-toe side of the foot, then let the knee travel in a direction the student can manage. Adjusting stance length changes the demand without declaring forward knee travel dangerous.
The goal is not to ban a position but to dose it. A smaller range can build capacity toward a larger one if that progression serves the student’s aims.
Protect against loss of control, not geometry
The traditional cue often tries to prevent a knee from wobbling inward under an unfamiliar load. Address that issue directly through pace, depth and active control rather than treating the ankle as an invisible barrier.
A rule can be a temporary teaching scaffold, but it should not become a fear message. Healthy joints benefit from varied, progressively prepared loading across the ranges daily life requires.