Lumbar hyperextends to achieve the stretch
Lower back arches rather than the chest actually opening.
Overactive muscles
Erector spinaeHip flexors
Corrective work
Foam RollErector spinae↗StretchHalf-kneeling hip flexor stretch↗Mobility · Upper Body
Cable Pec Minor Stretch / Band Chest Opener
Coaching cues
- Stand in a doorway or hold cables/bands behind you
- Step forward; let the arms be pulled back — resist minimally
- Feel the pec minor and anterior delt stretch
- Breathe into the stretch; hold 30–60 seconds
Common faults 2
Elbows bend — arms pull inward
Pec and anterior delt never reach a true stretch.
Overactive muscles
Pec majorPec minorAnterior deltoid
Corrective work
Foam RollPectorals↗StretchDoorway pec stretch↗