Upper arm drops during the extension
Gravity pulls the elbow down; the lateral head loses its load.
Overactive muscles
Posterior deltoidLatissimus dorsi
Corrective work
Foam RollLats↗StretchLat stretch (kneeling overhead)↗Push · Upper Body
Dumbbell Tricep Kickback
Coaching cues
- Hinge forward at 45°; upper arm parallel to the floor; elbow bent to 90°
- Extend the forearm back to full lockout — elbow stays fixed
- Pause and squeeze the tricep; lower under control
- Elbows do not drop during the set
Common faults 2
Trunk rises to complete the lockout
Body extension assists; tricep is underloaded at the top.
Overactive muscles
Erector spinaeHamstrings
Corrective work
Foam RollHamstrings↗StretchHamstring stretch with strap↗