Shoulder Press Machine: how to do it right
In short: The machine shoulder press targets the anterior deltoid in a guided vertical press, with peak tension at mid-range.
How to do it, step by step
- 1Set the seat so that the handles come to shoulder height, not above.
- 2Back flat against the backrest, feet planted, scapula slightly retracted and down.
- 3Press while keeping a continuous movement, with no jerking, to near extension of the elbows without locking them out.
- 4Come back under control, with your elbows not dropping too low to preserve the shoulder.
- 5Keep a steady rhythm: about 2 seconds on the press, 2 to 3 seconds on the return.
The mistake to avoid
Don't arch your back to help, stay braced against the backrest.
Other common mistakes
- Locking out your elbows at the top releases tension: stop just before full extension to keep the deltoids under load.
- Dropping your elbows too low on the return over-stretches the front shoulder: limit the low range to a comfortable level.
- Arching your lower back to help the press shifts the effort: keep your back flat and your brace active.
- Sharply accelerating in the middle zone cheats the hardest part: slow down and master the middle of the range.
Muscles worked
- Main:
- Front delts
- Supporting:
- Side delts, Triceps
The anterior deltoid is the prime mover, it pushes the load up. The lateral deltoid assists shoulder abduction. The triceps brachii extends the elbow at the end of the press. The upper trapezius stabilizes the scapula.
What to replace it with
Same muscle, same part of the movement: these exercises do the same job.
- Arnold Press ›
- Seated Dumbbell Shoulder Press ›
- Standing Dumbbell Shoulder Press ›
- Standing Barbell Overhead Press ›
- One-Arm Kettlebell Overhead Press ›
Frequently asked questions
How do I do this exercise?
Set the seat so the handles come to shoulder height, not above. Back flat against the backrest, feet planted, scapula slightly retracted and down. Press keeping a continuous movement to near extension of the elbows without locking them out, then come back under control.
How low should I go?
Do not rush through the middle of the range, that is where the deltoid works the most. At the bottom, do not lower your elbows too far to protect the front shoulder. At the top, stop just before locking out your elbows to keep tension. Go for the range you control, not the one where you twist around.
I don't feel anything, is that normal?
You should feel the work in the front of the shoulder. Try a slow tempo only on the middle zone, without ever locking out or relaxing at the top. You keep the anterior deltoid under continuous tension and you gain in contraction quality, often more effective than adding weight.
How fast should I do the movement?
About 2 seconds on the press, 2 to 3 seconds on the return. Mainly control the middle zone where the effort spikes: do not accelerate it with a sharp jerk. Smooth, continuous movement, with no dead time that breaks the tension.
How do I breathe?
Inhale on the return when the arms come back down, exhale during the press as you pass the hard mid-range zone. Keep your trunk braced and your back against the backrest all set long for a stable base.