Muscles worked
What the dumbbell overhead triceps extension trains
Tap a muscle to see just that one and what it does in the lift.
Before the first rep
How to set up
- 01
Pick a seat or stand. Sit on a bench set upright, back against the pad and feet flat, or stand with feet hip width apart. Seated is easier to keep your lower back still.
- 02
Grip the dumbbell. Hold one dumbbell vertically and cup the underside of the top plate with both palms, thumbs wrapped around the handle in a diamond shape.
- 03
Get it overhead. Bring the dumbbell to your chest, then press it straight up until your arms are fully extended over your head.
- 04
Set your elbows. Upper arms close to your head, elbows pointing up at the ceiling, about shoulder width apart. A slight outward angle is normal with both hands on one dumbbell.
- 05
Brace. Take a breath and pull your ribs down so your back does not arch. If standing, squeeze your glutes as well.
Step by step
How to do the dumbbell overhead triceps extension
- 01
Start tall. Begin with your arms straight and the dumbbell directly over your head, not out in front of your face.
- 02
Lower behind your head. Bend only at the elbows and let the dumbbell travel down behind your head. Your upper arms stay still and close to your head.
- 03
Reach the stretch. Go down until you feel a strong stretch in the back of your arms, usually with your elbows bent a little past a right angle and the dumbbell behind your head or upper neck. Stop short of any pinching in the shoulder or elbow.
- 04
Extend. Straighten your elbows to push the dumbbell back up the same path, keeping your elbows pointing up rather than flaring out to the sides.
- 05
Lock out. Finish with your arms straight over your head and squeeze the triceps for a moment before the next rep.
- 06
Finish the set. After the last rep, bring the dumbbell down in front of you to your chest or shoulder, then lower it to your thigh.
Cues to say in your head
- Elbows point at the ceiling
- Upper arms stay still
- Ribs down
- Lower behind your head
- Stretch, then straighten
- Squeeze at the top
Fix these first
Common mistakes
Elbows flaring wide
Keep them about shoulder width and pointing up. A little flare is normal, but if they spread wider on every rep, the dumbbell is too heavy.
Upper arms swinging forward
Keep your upper arms beside your head. When they drift forward and back, the shoulders and lats start doing the lifting.
Arching the lower back
Brace your abs and pull your ribs down, or sit against a back pad. A big arch means you are leaning back to cheat the weight up.
Cutting the range short
Lower until you feel a real stretch in the back of your arms. Small reps at the top skip the part of the lift this exercise is chosen for.
Dropping into the bottom
Lower with control and pause briefly in the stretch. Bouncing at the bottom puts more strain on the elbows and takes work off the triceps.
Loose grip on the dumbbell
Cup the top plate firmly with both palms and keep your wrists straight, so the weight cannot tip or slide.
Stay safe
Use a fixed dumbbell or check that an adjustable one is locked tight, since it travels over your head. There is no rack, so stop each set a rep or two before you would fail. If a rep stalls in the stretch, keep both hands on the dumbbell, use a little help from your shoulders to get it back overhead, then bring it down in front of you to your chest; never let it drop behind you. Start lighter than you think, because the stretched position can irritate elbows and shoulders. Stop if you feel sharp pain in the elbow or shoulder, and get it checked if it keeps coming back.
Programming
Sets, reps and how much weight
| Goal | Sets | Reps | Load | Rest |
|---|---|---|---|---|
| Muscle | 3 to 4 | 8 to 12 | 67–80% 1RM | 1 to 2 min |
| Endurance | 2 to 3 | 15 to 20 | 50–65% 1RM | 45 to 90 s |
| Technique | 2 to 3 | 10 to 12 | 50–60% 1RM | 1 min |
Plan your next session
Put in a recent set. You get working weights for your goal, a warm-up and the plates to load.
Estimated 1RM 216 lb
Endurance sets
108–140lb
2 to 3 sets of 15 to 20 reps, 45 to 90 s rest. Lighter sets for a pump or a finisher. Keep the stretch at the bottom of every rep.
Estimates use the Epley formula and work best from sets of 3 to 8 reps. Treat them as a starting point and adjust by how the first working set moves.
Questions
Dumbbell Overhead Triceps Extension questions
What muscles does the overhead tricep extension work?
It works the triceps, all three heads, with extra emphasis on the long head because your arms are overhead and the muscle is stretched. Your shoulders, serratus and core only hold you steady.
How do you do a cable overhead tricep extension?
Set a rope on a cable at about chest to head height, face away from the stack in a split stance and lean forward slightly, with the rope behind your head and your elbows pointing forward beside it. Straighten your arms until they are in line with your upper arms, then let the rope back slowly into the stretch.
Is a single arm overhead tricep extension better than using both hands?
Neither is better; they train the same muscle. One arm at a time lets you even out a weaker side and can feel easier on the shoulder, while two hands on one dumbbell lets you load heavier.
Should I do overhead tricep extensions seated or standing?
Both work. Seated with a back pad makes it easier to keep your lower back still and is the better starting point; standing adds more core work but tempts you to lean back.
How many sets and reps of overhead tricep extensions should I do?
For muscle growth, 3 to 4 sets of 8 to 12 reps taken within a rep or two of failure is a good default, once or twice a week. Higher reps of 15 to 20 also work well if heavy sets bother your elbows.
Why do overhead tricep extensions hurt my elbows?
Usually the weight is too heavy, the elbows are flaring, or you are bouncing out of the bottom. Go lighter, slow the lowering, and stop a little higher; if pain persists, swap to a pushdown and have it checked.
Train in Protocol
Log your dumbbell overhead triceps extension by voice. Protocol tracks the rest.
Your last session shows up before every set, warm-ups and plates are worked out for you, and your coach sees every lift next to your sleep and recovery.