Stance knee collapses on the drive phase
Glute med fails to stabilize the stance leg during the knee drive.
Overactive muscles
Adductor complexTFL
Corrective work
Foam RollAdductors↗Foam RollTFL↗StretchButterfly adductor stretch↗Lunge · Lower Body
Forward Lunge with Knee Drive
Coaching cues
- Step into a forward lunge; drive back to standing
- At the top, drive the back knee up to 90° — balance on one leg
- Hold the knee drive for 1 second; step back into the next lunge
- Combines lunge strength with single-leg balance
Common faults 2
Trunk pitches forward on the lunge
Hip flexors and calves restrict the upright lunge position.
Overactive muscles
Hip flexorsSoleus
Corrective work
Foam RollHip flexors↗StretchHalf-kneeling hip flexor stretch↗