Hip flexes to assist the curl
Thigh comes forward; hamstring loses its isolated position.
Overactive muscles
Hip flexorsRectus femoris
Corrective work
Foam RollHip flexors↗StretchHalf-kneeling hip flexor stretch↗Hinge · Lower Body
Cable Hamstring Curl (Standing)
Coaching cues
- Ankle cuff on low cable; stand facing the cable stack
- Curl the heel toward the glute — knee flexion only
- Upper thigh stays vertical; don't let the hip flex
- Control the return — resist the cable pulling the leg forward
Common faults 2
Trunk leans backward
Erectors compensate as the hamstring fatigues.
Overactive muscles
Erector spinae
Corrective work
Foam RollErector spinae↗StretchHalf-kneeling hip flexor stretch↗