Trunk leans back to assist the raise
Erectors generate the lift; anterior delt underloads.
Overactive muscles
Erector spinaeUpper trapezius
Corrective work
Foam RollUpper traps↗StretchLevator scapulae stretch↗Push · Upper Body
DB Shoulder Flexion (Neutral Grip)
Coaching cues
- Stand; dumbbell in one hand; neutral grip (thumb up)
- Raise the arm forward to 90° — pure shoulder flexion
- Pause at the top; lower under control — 3 seconds down
- No trunk lean; scapula stays depressed
Common faults 2
Shoulder shrugs at the top
Upper trap assists above 80°; medial delt and anterior delt lose the load.
Overactive muscles
Upper trapezius
Corrective work
Foam RollUpper traps↗StretchUpper trap stretch↗