Machine Shoulder Press
Shoulders
Weight & Reps
Machine
The machine shoulder press provides a guided overhead pressing motion. It removes the need for stabilization, allowing you to focus on pushing heavy loads safely for deltoid development.
How to Do Machine Shoulder Press
- Adjust the seat so the handles are at shoulder height when seated
- Press your back firmly into the pad and plant your feet flat on the floor
- Press the handles straight up until your arms are fully extended (without locking elbows)
- Lower under control until the handles return to shoulder level — don't let the weight stack slam
Form Cues
- Adjust the seat so the handles are at shoulder height when seated
- Press your back firmly into the pad and plant your feet flat on the floor
- Press the handles straight up until your arms are fully extended (without locking elbows)
- Lower under control until the handles return to shoulder level — don't let the weight stack slam
Common Mistakes to Avoid
- Setting the seat too low, which forces you to press from below shoulder level and strains the joints
- Arching your back away from the pad to recruit chest muscles for assistance
- Pressing unevenly — one arm finishing before the other indicates a strength imbalance to address
Muscles Worked
Primary
Anterior Deltoid
Lateral Deltoid
Triceps Brachii
Secondary
Trapezius (Upper)
Serratus Anterior
Recommended Sets and Reps
Strength
4-5 sets
3-5 reps
3-5 min rest
Hypertrophy
3-4 sets
8-12 reps
60-90s rest
Endurance
2-3 sets
15-20 reps
30-60s rest
Variations and Alternatives
Frequently Asked Questions
What muscles does the machine shoulder press work?
The machine shoulder press targets the anterior and lateral deltoids and triceps, with secondary work from the upper trapezius and serratus anterior.
How much should a beginner machine shoulder press?
Beginners typically start at 30-60 lbs (14-27 kg). Machine weight feels different from free weights — start conservatively and focus on pressing symmetrically.
Machine shoulder press vs barbell overhead press — which is better?
Barbell overhead press builds more functional strength and core stability, while the machine is safer and lets you isolate the delts without worrying about balance. Beginners can start with the machine; intermediates should incorporate both.
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