If you want bigger arms, stop obsessing over bicep curls and start prioritizing your triceps. The triceps make up roughly two-thirds of your upper arm mass. Dumbbells offer some of the most effective tricep exercises available — especially for targeting the often-neglected long head.
Best Dumbbell Tricep Exercises
Overhead Dumbbell Tricep Extension (3x10-12): Hold one dumbbell with both hands behind your head, extend upward. The overhead position stretches the long head of the tricep, which responds best to stretch-mediated exercises.
Dumbbell Skull Crushers (3x10-12): Lie flat, lower dumbbells toward your temples, extend back up. Using dumbbells instead of a barbell allows a greater stretch at the bottom.
Dumbbell Kickbacks (3x12-15): Lean forward, extend the dumbbell back until your arm is fully straight. Focus on the squeeze at the top — this exercise is about peak contraction, not heavy weight.
Close-Grip Dumbbell Press (3x8-10): Press dumbbells with a neutral grip and keep your elbows close to your body. Heavy compound tricep builder.
Single-Arm Overhead Extension (3x10-12 each): Greater range of motion than the two-arm version and ensures both arms develop equally.
Why the Long Head Matters Most
The triceps have three heads: long, lateral, and medial. The long head is the only one that crosses the shoulder joint, making overhead exercises essential for its development. It's also the largest head and most responsible for the horseshoe shape visible from behind.
Programming Tips
Include at least one overhead movement: Every tricep workout should include an overhead extension variation to target the long head.
Moderate to high reps: Triceps respond well to the 10-15 rep range for isolation work. Save the heavy pressing (6-8 reps) for compound movements like close-grip bench press.
Train Your Triceps with FitWit AI
FitWit AI ensures all three tricep heads receive adequate stimulus by selecting exercises that cover different angles and positions. It integrates your tricep isolation work with your pressing volume for balanced programming.
