💪Bodybuilding
Skullcrusher — Form Analysis
Isolate triceps for peak arm development.
AI Coaching
AI Sports & Gym Coaching App
0–100
Form Analysis
Intermediate
Level
iOS
Free Download
Primary Muscles
Triceps BrachiiTriceps Brachii (long head)Triceps Brachii (lateral head)Triceps Brachii (medial head)AnconeusDeltoids (stabilizer)
Equipment
Barbell (EZ bar recommended) or Dumbbells, Flat Bench
AI Coaching — Score Breakdown
Elbow Joint Angle
Bar Path Consistency
Shoulder Stability
Full Range of Motion
Controlled Tempo
Common Mistakes
Flaring Elbows Outwards
Allowing elbows to drift wide reduces triceps isolation and places undue stress on the elbow joint. This shifts tension to the shoulders and can lead to elbow pain or injury due to improper leverage.
Short Range of Motion
Not lowering the weight sufficiently (e.g., stopping at 90-degree elbow flexion) limits the stretch on the triceps long head, reducing muscle activation and growth potential.
Using Excessive Weight
Lifting too heavy often leads to momentum-based lifting, compromising form, reducing triceps isolation, and increasing the risk of dropping the weight or straining the elbows/shoulders.
