Machine Shoulder Press
The machine shoulder press is a seated overhead press on a guided lever: you push two handles from shoulder height up over your head. It trains the front and side delts, with the triceps finishing each rep, and the fixed path makes it an easy shoulder press to learn and to load heavy without a spotter.
How to do the machine shoulder press
Set the seat so the handles sit at about shoulder height, or slightly below, when you sit down.
Sit with your back and head against the pad and your feet flat on the floor.
Take the handles with your wrists straight over your elbows, forearms close to vertical.
Brace your midsection and press the handles up in one smooth push.
Stop just short of a hard lockout at the top, without letting your shoulders shrug up.
Lower the handles under control to the starting height and press again without resting the weight.
Setting up the shoulder press machine
Most of the work happens before the first rep. Adjust the seat so that, sitting upright with your back on the pad, the handles line up with your shoulders or sit just below them. Many machines also let you choose between a neutral grip, palms facing each other, and an overhand grip; many lifters find the neutral grip more comfortable, and it keeps the elbows a little in front of the body. Plant your feet flat and a little apart, so your legs hold you steady without pushing you up the pad.
Grip and elbow position
Hold the handles with the bar resting low in your palms and your wrists straight. Seen from the front, your forearms should stand close to vertical at the bottom, with the elbows under the handles rather than flared far out behind them. Elbows slightly in front of the body give the shoulders a stable position and still keep the side delts working.
Bracing and breathing
Breathe in at the bottom, brace your midsection as if someone were about to poke your stomach, and press. Breathe out as the handles pass the hardest point or at the top. The brace keeps your lower back on the pad, so the press goes straight up instead of turning into an incline press when the set gets hard.
Tempo and range of motion
Press with intent and lower the handles under control. At the top, straighten your arms without slamming into the lockout, and keep your shoulders down so the traps do not take over. At the bottom, go to the same height every time, close to your shoulders, and turn the weight around just before the stack touches. The same range on every rep is what makes your sets comparable from week to week.
Machine versus barbell press
A machine guides the path, so you do not need to balance the load. That makes it easy to learn and safe to push close to failure without a spotter, but it also takes away some of the stabilising work: in the EMG study above, the barbell press asked more of the delts than the machine. Over months, though, machines and free weights build muscle and strength about equally, so pick the press you can do well and progress steadily.
Muscles worked by the machine shoulder press
- Primary
- Front delts
- Side delts
- Secondary
- Triceps
- Chest
- Traps
The front delts do the most work: they lift the upper arm forward and up through the whole press. The side delts join in, and the triceps straighten the elbows. The upper traps rotate the shoulder blades upward so the arms can travel overhead, and pressing with the hands in front of the head brings in the upper chest as well. In an EMG study with competitive bodybuilders, a front press on the machine asked more of the chest than a press behind the head.
Common shoulder press mistakes on the machine
Setting the seat at the wrong height
Too low and the bottom position strains the shoulders; too high and the press becomes a half rep. Start with the handles at about shoulder height.
Arching off the back pad
A big arch turns the overhead press into an incline press and moves work to the chest. Keep your ribs down and your back on the pad.
Shrugging at the top
When your shoulders creep toward your ears, the traps take over the end of the rep. Press up while the shoulders stay low.
Cutting the range short
Stopping halfway down lets you use more weight but skips the hardest, most useful part. Lower the handles to the same depth on every rep.
Slamming the stack between reps
Letting the plates touch gives the muscles a rest and makes the reps uneven. Turn around just before the stack touches down.
How Muscla coaches the shoulder press
- Warm up with two ramp sets: about 50% of your working weight for 8 reps, then about 75% for 3. Muscla adds them to every heavy compound lift.
- End working sets with about two reps in the tank, two to three when you train for strength; beginners keep one more in reserve.
- Rest about 3 minutes between sets for strength, 2 minutes for muscle and 90 seconds for other goals.
- Once every set reaches the top of your rep range, add one step of about 2.5%, at least the smallest jump of the machine (5 kg or 10 lb), and start again at the bottom of the range.
- After the last set, Muscla asks “How heavy was that?” Light adds weight, Good keeps the normal progression, Heavy holds it, At the limit holds it or takes off one step.
Machine shoulder press sets, reps and rest
| Goal | Reps | Rest |
|---|---|---|
| Strength | 3–6 → 2–5 → 4–8 | 3 min |
| Muscle | 6–10 → 8–12 | 2 min |
| Lose fat | 6–12 | 90 s |
| Fit | 8–12 | 90 s |
| Comeback | 8–12 | 90 s |
An arrow marks the range for the next 4-week block.
The machine shoulder press counts as a heavy compound lift in Muscla, so it gets the lowest rep ranges when you train for strength and the longest rests. Every 4 weeks a new block moves you to the next range; after every third block comes a deload week with 90% of the weight and one set fewer.
Estimate your shoulder press one-rep max
Filled in with example values. Replace them with yours.
Estimated 1RM
Brzycki 74.5 · Lombardi 73.9
Epley: 60 × (1 + 8 ÷ 30) = 76 kg
| Reps | Weight | % of 1RM |
|---|---|---|
| 1 | 75 kg | 100 % |
| 2 | 72.5 kg | 94 % |
| 3 | 70 kg | 91 % |
| 4 | 67.5 kg | 88 % |
| 5 | 65 kg | 86 % |
| 6 | 62.5 kg | 83 % |
| 7 | 62.5 kg | 81 % |
| 8 | 60 kg | 79 % |
| 9 | 57.5 kg | 77 % |
| 10 | 57.5 kg | 75 % |
| 11 | 55 kg | 73 % |
| 12 | 55 kg | 71 % |
Shoulder press alternatives
- Barbell Seated Overhead Press
- Dumbbell seated shoulder press
- Dumbbell standing overhead press
- Cable shoulder press
- Dumbbell Arnold Press
- Barbell standing close grip military press
- Kettlebell two arm military press
- Band shoulder press
- Pike-to-cobra push-up
- Handstand push-up
Machine shoulder press questions
Is the machine shoulder press as good as free weights?
For muscle and overall strength, yes: a meta-analysis found no difference between machine and free-weight training in direct comparison. Strength gains were specific, though, so you get best at the version you train.
How much weight should I start with on the shoulder press machine?
Muscla's first suggestion for a man new to training is about 0.25 times body weight, rounded down to the machine's steps: 20 kg at 80 kg. Your first working set then corrects it: if you get clearly more reps than planned, the remaining sets get heavier.
How low should I go on the machine shoulder press?
Bring the handles down to about shoulder height, or as low as your shoulders move comfortably, and use that depth on every rep. Set the seat so this bottom position feels solid.
Machine or barbell shoulder press: which works the delts more?
In an EMG study, the barbell press asked more of the delts than the machine, because a free bar has to be balanced. The machine is easier to learn and lets you push close to your limit safely.
Should I lock out my elbows at the top?
Straighten your arms, but do not slam into the lockout. Keep the tension in the shoulders and triceps and start lowering right away.
Train it with Muscla
Muscla plans your sets, reps and rest, and sets the next weight after every session.
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Sources
- Coratella G, Tornatore G, Longo S, Esposito F, Cè E. Front vs back and barbell vs machine overhead press: an electromyographic analysis and implications for resistance training. Front Physiol. 2022;13:825880. PubMed
- Haugen ME, Vårvik FT, Larsen S, et al. Effect of free-weight vs. machine-based strength training on maximal strength, hypertrophy and jump performance - a systematic review and meta-analysis. BMC Sports Sci Med Rehabil. 2023;15(1):103. PubMed
- Refalo MC, Helms ER, Trexler ET, et al. Influence of resistance training proximity-to-failure on skeletal muscle hypertrophy: a systematic review with meta-analysis. Sports Med. 2023;53(3):649-665. PubMed
- Schoenfeld BJ, Pope ZK, Benik FM, et al. Longer interset rest periods enhance muscle strength and hypertrophy in resistance-trained men. J Strength Cond Res. 2016;30(7):1805-1812. PubMed