MariposasHow to Do the Overhead Tricep Extension
By Zachary, builder of Mariposas · Reviewed against published exercise-science sources (references)
· Last updated June 2026
The overhead tricep extension targets the long head of the triceps in a way that most pushing movements simply can't replicate. Because the arm is raised overhead, the long head crosses the shoulder joint and gets fully stretched at the bottom of each rep, which creates a stimulus that close-grip bench press or pushdowns leave on the table. A dumbbell makes this accessible with a single piece of equipment and allows a natural wrist path that a barbell version doesn't always permit. Track your sets, reps, and weights for free in the Mariposas app.
How to do it
- Sit on a bench with back support, or stand with feet roughly hip-width apart, and hold one dumbbell vertically with both hands cupped around the top plate, thumbs wrapped underneath for security.
- Press the dumbbell overhead until your arms are fully extended, keeping your elbows pointed forward rather than flaring out wide to the sides.
- Before you lower the weight, brace your core and press your lower back slightly into the bench or think about stacking your ribs over your hips if standing, so the lumbar spine doesn't hyperextend under the load.
- Hinge only at the elbows and lower the dumbbell in a controlled arc behind your head until your forearms dip below parallel to the floor, or as far as shoulder mobility comfortably allows.
- Pause briefly at the bottom of the range with the long head fully stretched, resisting the urge to let the elbows wing outward as the load gets heavier.
- Drive through the backs of your arms to extend the elbows and press the dumbbell back overhead, exhaling on the way up.
- At the top, do not lock the elbows so hard that you hyperextend the joint; stop just short of full lockout to keep tension on the triceps throughout the set.
- Lower again under control rather than letting the weight drop, keeping the tempo deliberate especially on the eccentric to get full benefit from that stretched position.
Form cues
- Elbows forward, not flared.
- Ribs down, core tight.
- Move only at the elbow.
- Slow the descent, own the stretch.
- Wrists neutral, not bent back.
Common mistakes
- Letting the elbows flare wide: this shifts load off the long head and onto the shoulder joint, increasing impingement risk. Focus on keeping both elbows pointed toward the ceiling throughout the rep.
- Using the lower back as a counterbalance: arching excessively to hoist the weight overhead strains the lumbar spine. Brace the core before the first rep and choose a lighter dumbbell if you can't hold a neutral spine.
- Rushing through the bottom: bouncing out of the stretch wastes the most productive part of the movement. A one-count pause at the bottom forces the long head to do real work.
- Gripping only the handle instead of cupping the plate: the dumbbell can rotate or slip with a handle-only grip, especially as the set progresses. Use a palms-up cup grip on the top plate for security.
- Going too heavy too soon: because the long head is fully stretched under load, using more weight than you can control under a slow eccentric often leads to elbow pain near the olecranon. Build load incrementally and prioritize range of motion first.
Why do the Overhead Tricep Extension?
- The fully stretched position at the bottom of each rep recruits the long head of the triceps to a greater degree than exercises performed with the arm at the side, which can contribute more to overall arm size since the long head is the largest portion of the muscle.
- Because it requires only a single dumbbell, it fits easily into home gym setups, travel workouts, or the end of a session when barbells and cables are occupied.
- The unilateral or bilateral loading options let you address side-to-side strength asymmetries that compound pushing movements can mask.
- Strong triceps built with overhead loading carry over meaningfully to pressing strength, particularly in the lockout phase of overhead press variations where the long head is also lengthened.
- The seated version with back support makes it accessible for lifters who are still developing core stability, while the standing version adds a secondary demand on trunk bracing.
Overhead Tricep Extension variations
- Single-Arm Dumbbell Overhead Extension
- Using one arm at a time is useful when one tricep lags behind or when grip on the two-handed version feels unstable; the free hand can brace against a bench or knee for support.
- Seated Overhead Extension (Back Supported)
- The bench back removes the postural challenge of the standing version, making it a good starting point for newer lifters or for pushing closer to failure without form breakdown.
- Cable Overhead Tricep Extension
- Attaching a rope to a low pulley and facing away from the stack provides consistent tension through the entire range of motion, including at the top where a dumbbell loses tension; this is a useful progression when the dumbbell version plateaus.
- EZ-Bar Overhead Extension
- The angled grip of an EZ-bar reduces wrist stress at heavier loads and suits lifters who find the dumbbell version uncomfortable once weights climb into the higher end of their range.
How to program it
The overhead tricep extension tends to appear as an accessory movement after compound pressing work, typically after bench press or overhead press has already been completed. Many lifters use it in the 8 to 15 rep range, which suits the isolation nature of the exercise and keeps joint stress manageable. Some hypertrophy-focused programs place it at the end of an upper body day with slightly higher rep ranges, taking advantage of the metabolic pump the long head produces in that stretched position. It is rarely used as a primary movement but earns its place consistently in programs built around arm development or overhead pressing strength.
Overhead Tricep Extension alternatives
FAQ
- Is the overhead tricep extension bad for your elbows?
- For most people, no. Elbow discomfort usually traces back to using too much weight, flaring the elbows outward, or not warming up the joint before loading it. Lifters with existing elbow issues sometimes find the fully stretched position aggravates them, in which case a pushdown or close-grip press may be a better short-term choice.
- Should I do this seated or standing?
- Both work. Seated with back support lets you push harder on the triceps because the lower back isn't a limiting factor. Standing adds a core stability demand and can be a useful variation for athletic populations, but you may need to use slightly less weight to keep the spine neutral.
- How do I grip the dumbbell correctly?
- Cup both palms around the top plate of the dumbbell with thumbs wrapping underneath, forming a diamond shape. This distributes the load evenly across both hands and prevents the dumbbell from rotating or slipping during the stretch.
- Why do I feel this more in my shoulders than my triceps?
- This usually means the elbows are flaring out, the range of motion is too short, or the weight is heavier than current shoulder mobility can handle in the overhead position. Try a lighter dumbbell, focus on keeping elbows forward, and lower slowly to feel the triceps engage at the bottom.
- Can I do this with one dumbbell or do I need two?
- One dumbbell is all you need for the standard two-handed version. You can also hold a single dumbbell in one hand for the single-arm variation. Two dumbbells are not used for this exercise.