Knee caves inward on descent
Single-leg valgus under the controlled eccentric.
Overactive muscles
Adductor complexTFL
Corrective work
Foam RollAdductors↗Foam RollTFL↗StretchButterfly adductor stretch↗Squat · Lower Body
Single-Leg Squat to Box
Coaching cues
- Stand on one leg in front of a box; lower to sit lightly on the box
- Control the descent — don't crash onto the box
- Drive back up through the stance heel
- Regression for the pistol squat — box controls the range
Common faults 2
Crashing onto the box instead of touching
No eccentric control; the concentric strength stimulus is also lost.
Overactive muscles
QuadricepsHip flexors
Corrective work
Foam RollHip flexors↗StretchHalf-kneeling hip flexor stretch↗