Shoulders shrug at lockout
Upper traps elevate at the top, impinging the shoulder and reducing triceps activation.
Overactive muscles
Upper trapeziusLevator scapulae
Corrective work
Foam RollUpper traps↗StretchUpper trap / levator stretch↗Upper traps elevate at the top, impinging the shoulder and reducing triceps activation.
Torso angles too far forward, turning dips into a chest-dominant movement unintentionally.
Wide elbow path stresses the anterior capsule and reduces pushing efficiency.