Exercise guide
Lever Seated Single Arm Shoulder Press
- Beginner
- Compound
- Rep-based
- Shoulders
- Upper arms
- Waist
This unilateral compound movement isolates the anterior and medial deltoids while correcting muscular imbalances through a fixed, stable path of motion. Using a leverage machine allows for maximum mechanical tension on the shoulder without the stability requirements of free weights.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Position the bench so the machine handle is aligned with your shoulder when seated.
- Sit tall with your feet planted firmly on the floor and your back pressed against the backrest.
- Grasp the handle with an overhand or neutral grip, keeping your elbow slightly in front of your shoulder.
- Place your non-working hand on your lap or the machine frame to stabilize your torso.
How to do it
- Exhale as you press the handle upward in a controlled arc until your arm is fully extended but not locked at the elbow.
- Inhale as you slowly lower the handle back to the starting position, stopping just before the weight stack touches.
- Maintain a steady 2-1-2-0 tempo (2 seconds up, 1 second pause at the top, 2 seconds down).
- Complete the full set on one arm before switching to the other side.
Form checklist
- Keep your core braced and avoid arching your lower back off the bench.
- Ensure your wrist remains stacked directly over your elbow throughout the entire movement.
- Keep your shoulders pinned down; do not allow the working shoulder to shrug toward your ear.
- Maintain a forward-facing torso and avoid rotating toward the side you are pressing.
Pro tips
- Focus on driving your bicep toward your ear at the top of the movement to maximize deltoid contraction.
- Keep constant tension by never letting the weight rest at the bottom of the rep.
Make it harder
- Implement a 4-second eccentric (lowering) phase to increase time under tension and muscle fiber recruitment.
- Add a brief pause at the bottom of the movement to eliminate momentum and force the muscle to work from a dead stop.
Frequently asked
- What muscles does the lever seated single arm shoulder press work?
- The lever seated single arm shoulder press primarily targets the deltoids, and also works the abs, serratus anterior, and triceps as secondary muscles.
- What equipment do you need for the lever seated single arm shoulder press?
- The lever seated single arm shoulder press uses leverage machine.
- Is the lever seated single arm shoulder press good for beginners?
- Yes. The lever seated single arm shoulder press is a beginner-friendly movement and a strong foundation to build on.
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