Knee caves inward on descent
Classic Trendelenburg — glute med fails on the stance leg.
Overactive muscles
Adductor complexTFL
Corrective work
Foam RollAdductors↗Foam RollTFL↗StretchButterfly adductor stretch↗Squat · Lower Body
Step-Down (Eccentric Single-Leg Squat)
Coaching cues
- Stand on a step; lower the non-stance foot toward the floor
- Hinge slightly; stance knee tracks over the toes
- Touch the heel to the floor lightly; return without pushing off
- Slow and controlled — 3-second eccentric
Common faults 2
Trunk lurches forward on descent
Hip flexors and calves restrict the controlled single-leg hinge.
Overactive muscles
Hip flexorsSoleus
Corrective work
Foam RollHip flexors↗Foam RollCalves↗StretchHalf-kneeling hip flexor stretch↗