Dumbbell One Arm Triceps Extension
The one-arm dumbbell overhead extension strengthens the triceps and improves elbow extension strength. The movement specifically targets the back of the upper arm and develops muscle definition in the arms.
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Required equipment
Why Dumbbell One Arm Triceps Extension?
The one-arm tricep push-up with a dumbbell is an excellent exercise for the back of the upper arm, i.e., the triceps. It is an effective way to strengthen the triceps and improve elbow extension strength, which is important in many daily activities and sports performances. This movement effectively isolates the triceps, helping to develop muscle mass and muscle definition in the arms. Since the movement is performed one arm at a time, it also helps correct any imbalances in arm strength and coordination. The exercise is suitable for both beginners and more experienced fitness enthusiasts due to its adjustability. Beginners can start with a light weight and focus on clean technique, while more experienced individuals can challenge themselves with heavier weights or by increasing the number of repetitions. Using a bench provides additional stability, but the movement can also be performed standing or seated without support, emphasizing core stability. The one-arm tricep push-up with a dumbbell is an effective addition to any upper body or arm workout program, helping to build strong and aesthetic arms.
Benefits
Effectively strengthens the triceps
Improves elbow extension strength
Develops muscle definition in the arms
Isolates the triceps effectively
Corrects arm imbalances
Increases overall upper arm strength
Highly suitable for beginners
Muscle groups
Primary
- triceps10
- triceps10
Stabilizers
- deltoids4
- deltoids4
- forearm3
- forearm3
- abs3
How to perform
Setup
- Sit on a bench or stand in a stable position with your feet hip-width apart.
- Grab the dumbbell with one hand in a neutral grip and lift the weight above your head with your arm straight.
- Keep your elbow close to your head and your chest proud, with your core tight.
Execution
- Lower the weight in a controlled manner behind your head by bending your elbow, keeping your upper arm vertical.
- Stop at a deep stretch without allowing your elbow to open out to the side.
- Extend your elbow, returning the weight back up until your arm is nearly straight without locking out. Repeat the repetitions and switch arms.
Coaching cues
- •Keep your elbow narrow and perpendicular to the ceiling throughout the movement.
- •Engage your core and avoid excessive arching or overextension in the lower back (squeeze your glutes).
- •Use a slow tempo: 2–3 seconds down, 1 second up. Choose a weight that keeps the movement controlled.
Common mistakes
❌ Elbows flaring out to the sides
Why it's wrong: If the elbow flares out too far to the side during the movement, the load shifts away from the triceps and unnecessarily strains the shoulder. This reduces the effectiveness of the movement for the triceps.
✓ Fix: Keep your elbow tight against your head and pointing forward. Focus on keeping it stable throughout the movement.
❌ Using too much weight and swinging
Why it's wrong: The weight is too heavy if you have to swing the dumbbell up or use your body for assistance. This reduces muscle isolation and increases the risk of injury to the elbows and shoulders.
✓ Fix: Choose a weight that allows you to perform the movement in a fully controlled and slow manner. Focus on the contraction and stretching of the triceps, not on lifting the weight at any cost.
❌ Arching the back
Why it's wrong: Excessive arching of the lower back during the movement can cause unnecessary strain on the spine and weaken core support. This can lead to back pain.
✓ Fix: Keep your core tight and avoid arching your back. You can lightly engage your abdominal muscles to keep your back in a neutral position, especially if performing the movement standing or seated without back support.
Frequently asked questions
How often should this movement be done?
The optimal frequency depends on your goals and the rest of your training program. Generally, doing it 2-3 times a week as part of an upper body or arm workout is good. Remember to give your muscles enough time to recover between workouts.
Can I do the movement standing?
Yes, the movement can also be done standing. When performed standing, it challenges your core support and balance more. However, sitting or supported on a bench provides better stability and allows you to focus more effectively on the triceps without straining the core.
How can I progress in this movement?
Progress can be achieved by progressively increasing the weight, the number of repetitions, or the number of sets. You can also slow down the lowering phase (negative phase) to increase muscle load or add drop sets to your workouts.
Is the one-arm version better than the two-arm version?
Both versions are effective, but they have slightly different purposes. The one-arm version allows for more effective muscle isolation and helps correct imbalances. The two-arm version, on the other hand, may allow for the use of heavier weights. Both have their place in a balanced training program.
Safety tips
- Warm up your shoulders and elbows thoroughly before starting the movement. Light rotations and stretches help prevent injuries.
- Always choose a weight that you can control completely. Do not sacrifice technique for the weight.
- Keep your elbow stable and as close to your head as possible throughout the movement. Avoid letting it flare out to the sides.
- Engage your core and avoid excessive arching of your back to prevent unnecessary strain on your lower back.
- Listen to your body. If you feel pain, stop the movement and check your technique or lighten the weight.
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