Skip to main content
Back

Exercise

Two Arm Standing Dumbbell Extension

How to Perform - Two Arm Standing Dumbbell Extension

  1. Stand with your feet shoulder-width apart, holding a dumbbell with both hands at one end so your palms support the upper weighted portion.
  2. Position the dumbbell above your head with your arms fully extended, keeping your core engaged and shoulders relaxed away from your ears.
  3. Slowly bend your elbows to lower the dumbbell behind your head, keeping your upper arms stationary and close to your ears.
  4. Inhale as you lower the weight, stopping when your forearms are approximately parallel to the floor or when you feel a comfortable stretch in your triceps.
  5. Ensure your wrists remain neutral and aligned with your forearms throughout the movement, avoiding any flexion or extension.
  6. Exhale as you extend your elbows to raise the dumbbell back to the starting position, focusing on the contraction in your triceps.
  7. Maintain a slight bend in your knees and a neutral spine position, avoiding any arching or swaying in your lower back.
  8. Keep your head in a neutral position, looking straight ahead, and avoid jutting your chin forward during the exercise.

Important information

  • Keep your elbows pointing forward rather than flaring out to the sides to protect your shoulder joints and better isolate the triceps.
  • Start with a lighter weight until you master the form, as using too heavy a dumbbell can compromise technique and put strain on your neck and shoulders.
  • Make sure to control the dumbbell throughout the entire movement, avoiding any jerky or rushed motions that could lead to injury.
  • If you experience any elbow or shoulder discomfort, try adjusting your grip width or consider alternative triceps exercises.

Primary Muscles

Triceps

Muscle Groups

Arm exercises

Mechanic

Isolation

Risk Areas

Triceps

Built for progress

Take the guesswork out of training

Create personalized AI-powered workout plans that evolve with you. Train smarter, track every rep, and keep moving forward, one workout at a time.

Be among the first to join!
GrabGains workout plans

The Two Arm Standing Dumbbell Extension stands as a powerful intermediate-level exercise that effectively targets the triceps muscles, making it a staple in bodybuilding and strength training regimens. This movement isolates the triceps brachii: the three-headed muscle at the back of your upper arm, by focusing tension throughout the full range of motion, particularly at the point of maximum contraction. When properly incorporated into your routine, this exercise contributes significantly to developing balanced upper arm aesthetics. The triceps actually comprise approximately two-thirds of your upper arm mass, which explains why dedicated bodybuilders pay particular attention to triceps development. Beyond the aesthetic benefits, strengthening your triceps through movements like the Two Arm Standing Dumbbell Extension enhances your performance in pushing movements such as bench presses, push-ups, and various overhead pressing exercises. 

For strength athletes, the value of this exercise lies in its ability to strengthen the triceps through a complete extension pattern, which directly translates to improved lockout strength in compound lifts. The standing position additionally engages your core stabilizers as you maintain proper posture throughout the movement, providing ancillary benefits beyond isolated triceps work. What makes this exercise particularly appealing for intermediate lifters is the adaptability it offers. As your triceps strength increases, you can progressively overload by increasing dumbbell weight, creating consistent stimulus for muscle growth and strength development. 

Unlike machine-based triceps exercises, the Two Arm Standing Dumbbell Extension requires greater stabilization, engaging more muscle fibers and potentially leading to superior neuromuscular adaptations. For bodybuilders specifically, this exercise can be strategically placed in a training split to add quality triceps volume without overly taxing the central nervous system. When combined with compound pressing movements and other isolation exercises, it creates the necessary training stimulus to develop the horseshoe-shaped triceps that are so coveted on the competition stage and in the weight room alike.

FAQ - Two Arm Standing Dumbbell Extension

What muscles does the Two Arm Standing Dumbbell Extension target?

This exercise primarily targets all three heads of the triceps brachii, with particular emphasis on the long head. Your core muscles also engage isometrically as stabilizers while maintaining proper standing posture throughout the movement.

How do I ensure proper form during this exercise?

Stand facing the cable machine with a staggered stance for stability, keep your upper arms close to your ears throughout the movement, and focus on extending only at the elbow joint while maintaining a stable torso. The movement should come solely from your elbows, not your shoulders or back.

How can I modify this exercise based on my fitness level?

Beginners can start with lighter weight and higher reps (12-15) focusing on proper form. Intermediate lifters can progress to moderate weight in the 8-12 rep range. Advanced lifters can incorporate techniques like drop sets, slower negatives, or single-arm variations to increase intensity without compromising form.

What are common mistakes to avoid with the Two Arm Standing Dumbbell Extension?

Avoid flaring your elbows outward, which reduces triceps engagement and stresses the shoulders. Don't use momentum by swinging your arms or rocking your body, and resist the temptation to overextend at the bottom of the movement, which can strain your elbow joints.

How often should I include this exercise in my workout routine?

For optimal results, include the Bodyweight Single Leg Deadlift 1-3 times weekly, performing 2-3 sets of 8-12 repetitions per leg. This frequency provides enough stimulus for strength development while allowing adequate recovery, especially if you're also doing other posterior chain exercises.

Workouts with Two Arm Standing Dumbbell Extension