How to train your triceps

Two-thirds of your upper arm that most people underprioritize

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Anatomy

The triceps brachii has three heads: the long head (crosses the shoulder joint, runs along the inner arm, and is best stretched with the arm overhead), the lateral head (the outer horseshoe, most visible from the side), and the medial head (deepest, active in all extension movements). All three extend the elbow, straightening the arm, and the long head additionally assists in shoulder extension. The triceps make up approximately two-thirds of the upper arm's cross-section, meaning they contribute more to arm size than the biceps.

How to train it

Compound pressing movements (bench press, dips, overhead press) build the triceps under heavy load. Isolation work (pushdowns, skull crushers, overhead extensions) rounds out the development and isolates the long head when the arm is raised. The long head needs overhead work (cable overhead extension, EZ-bar overhead extension) because flat pressing does not fully stretch it. Target 3–5 sets of direct triceps work per session, in the 8–15 rep range, across two to three sessions per week. The most common mistake: only doing pushdowns, which neglects the long head and leaves the arm underdeveloped along the inner side.

Coaching cues

Staple triceps exercises

Barbell

Close-Grip Barbell Bench Press

Body Only

Dips - Triceps Version

Cable

Triceps Pushdown

E-Z Curl Bar

EZ-Bar Skullcrusher

Cable

Triceps Pushdown - Rope Attachment

All triceps exercises (71)

Train it with MyoAmigo

MyoAmigo's MyoMap heatmap shows your triceps volume against an evidence-based weekly band, so you can see at a glance whether you're under-training it. See also how many sets per muscle per week and the training guides.

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