Overhead Tricep Extension

Move · Resistance Training · Movement, Typed Supps

One of the three triceps heads attaches above the shoulder, so only lifting your arm overhead puts it on stretch.

Stage by stage

Set-up (Shoulder flexion sets length): Raising the arms overhead lengthens the long head, the only triceps head that crosses the shoulder.
During the set (Loaded near full stretch): Elbow flexion from overhead takes the long head close to full length while resistance is highest.
Heavier sets (Elbow tolerance is the limit): Peak load coincides with peak stretch, the position the elbow tolerates least — tempo beats weight here.
Weeks later (Long-head emphasis retained): Pushdowns shorten this head; overhead work lengthens it, which is why the two are complementary.

Muscles trained

Primary: triceps
Secondary: abs, rotator cuff

Intensity

3.5 METs (Resistance (weight) training, multiple exercises, 8-15 repetitions at varied resistance).

Time to effect

Weeks: In the first few weeks, don't be surprised if this feels more challenging on lighter loads than a pushdown — the deep stretch position is simply a harder place to produce force.
Months: Over a few months, training the triceps in this lengthened position is a genuinely useful complement to pushdown-style work for building out the long head specifically.

Common myth

"Overhead extensions and tricep pushdowns train the same thing, so you only need one." In reality: Both hit the triceps, but the joint angle changes the emphasis. Because the triceps' long head crosses the shoulder as well as the elbow, raising the arms overhead puts that head under a deeper stretch than a pushdown does, which is why many lifters include both rather than picking one.