ProgreviaMachine lateral raise: proper form, muscles worked and common mistakes
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How to do it
With the arms against the pads, raise to shoulder height leading with the elbows and squeeze the side delts. The machine gives constant tension; lower slowly without dropping the weight.
Muscles worked
Main muscle: shoulders. When it plans weekly volume, every set of this exercise counts in full for shoulders: the generator does not split it with other muscles.
Machine lateral raise: a guided path versus free dumbbells
The main difference from the dumbbell lateral raise is that the machine sets the path for you. You don't have to hold the weight or balance the arm, so all your attention goes to the medial deltoid and you can push close to failure with less risk of losing your posture. With your arm against the pad, resistance stays more even than with a dumbbell, which barely weighs anything at the bottom. The cable gives you freedom of path; the machine gives you the comfort of repeating the same motion every rep, which helps when you're tired at the end of a session. The trade-off is that the machine's lever may not fit every body size equally.
It's the logical pick if you're starting out, if you want intensity techniques like drop sets or partial reps, or if you struggle to control dumbbells late in the session. Before loading up, set the seat so the pivot axis sits at shoulder height.
Drive with your elbows into the pads rather than with your hands, and keep your chest against the backrest through the whole set. To progress, add weight in small steps once you reach the top of your rep range with a two- or three-second lowering.
Technical sheet
- Movement pattern
- Isolation
- Minimum level
- Beginner
- Technical demand
- Basic
- Fatigue it generates
- Low (0.5 out of 2.2)
- Risk if technique breaks down
- Low
These are the values the generator uses to decide where the exercise goes within the session.
Recommended sets and reps
As an isolation exercise, it works best in 3–4 sets of 10–15 reps with 0–2 RIR. Use it at the end of the session to add volume without systemic fatigue.
Common mistakes to avoid
- Using torso momentum (swinging) to lift the weight instead of isolating the deltoid.
- Not adjusting the seat and pads to your body: your joint should line up with the machine's pivot.
- Using too much weight at the cost of technique and full range of motion.
What the research says
As an isolation move, it is mostly a way to add volume to one muscle. Gentil and colleagues (2013) found that, in beginners, adding it to a multi-joint exercise gave no extra arm growth; it pays off later on, or for muscles the compounds barely reach.
You do not need to reach failure on every set: according to the meta-analysis by Refalo and colleagues (2023), stopping one or two reps short gives very similar growth. The generator prescribes it with RIR for that reason.
- Gentil P, Soares SR, Pereira MC, et al. Effect of adding single-joint exercises to a multi-joint exercise resistance-training program on strength and hypertrophy in untrained subjects. Applied Physiology, Nutrition, and Metabolism. 2013;38(3):341-344.
- Refalo MC, Helms ER, Trexler ET, Hamilton DL, Fyfe JJ. Influence of resistance training proximity-to-failure on skeletal muscle hypertrophy: a systematic review with meta-analysis. Sports Medicine. 2023;53(3):649-665.
How Machine lateral raise compares with other shoulders exercises
Of the 15 shoulders exercises in the catalogue, ranked from least to most fatiguing by the values the generator uses, Machine lateral raise is number 4 (tied with 4 others).
That makes it a good candidate for adding shoulders sets at the end of a session or in heavy weeks, when you want volume without extra fatigue.
With different equipment, the same movement pattern offers 7 alternatives, such as Band pull-apart, Band lateral raise and Bent-over reverse flye.
| Exercise | Equipment | Fatigue | Technique |
|---|---|---|---|
| Band pull-apart | resistance band | Low (0.3 out of 2.2) | Basic |
| Band lateral raise | resistance band | Low (0.4 out of 2.2) | Basic |
| Bent-over reverse flye | dumbbells | Low (0.4 out of 2.2) | Basic |
| Front raise | dumbbells | Low (0.5 out of 2.2) | Basic |
| Lateral raise | dumbbells | Low (0.5 out of 2.2) | Basic |
| Cable lateral raise | cable | Low (0.5 out of 2.2) | Basic |
| Machine lateral raise | machine | Low (0.5 out of 2.2) | Basic |
| Face pull | cable | Low (0.5 out of 2.2) | Basic |
On a machine. In the meta-analysis by Haugen et al. (2023), with thirteen studies and 1,016 participants, there were no significant differences in muscle growth between training on machines and with free weights.
An isolation exercise. In the trial by Gentil et al. (2015), with untrained young men over ten weeks, the biceps curl and the lat pulldown were equally effective for gaining strength and size in the elbow flexors: isolation is not filler.
- Haugen ME, Vårvik FT, Larsen S, Haugen AS, van den Tillaar R, Bjørnsen T. Effect of free-weight vs. machine-based strength training on maximal strength, hypertrophy and jump performance: a systematic review and meta-analysis. BMC Sports Science, Medicine and Rehabilitation. 2023;15(1):103.
- Gentil P, Soares S, Bottaro M. Single vs. multi-joint resistance exercises: effects on muscle strength and hypertrophy. Asian Journal of Sports Medicine. 2015;6(2):e24057.
Related guide
Deltoids: the best exercises for each head
Alternative exercises
More isolation exercises
- Barbell calf raise
- Kettlebell calf raise
- Dumbbell calf raise
- Standing calf raise
- Single-leg calf raise on leg press
Add it to your routine
Progrevia can generate a personalized routine that includes Machine lateral raise based on your level, goal and available days.
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Frequently asked questions
What muscles does Machine lateral raise work?
Machine lateral raise mainly works the shoulders muscle group, plus synergist and stabilizer muscles depending on the variation.
How many sets of Machine lateral raise should I do?
Between 3 and 5 sets per session, adjusting the total weekly volume for shoulders to your level (about 10–20 sets per muscle per week).
How do I set the seat on a lateral raise machine?
Usually the shoulder joint should line up with the machine's pivot axis, with your arms starting close to your body. If the seat is too high or too low, the load shifts and you'll feel more trapezius than deltoid. Try it with a light weight and adjust until the movement feels smooth from the first rep.
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