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Best Machine Exercises for Building Muscle in 2026

The best machine exercises for building muscle in 2026, ranked by research: leg press, leg curl, lat pulldown, chest press and more, plus sets and reps.

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Alexandros Training Team
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10 min

Short answer

The best machine exercises for building muscle in 2026 are the leg press, seated leg curl, lat pulldown, machine chest press, seated cable row, and leg extension, with the machine shoulder press and cable lateral raise to finish the shoulders. Two meta-analyses found no difference in muscle growth between machines and free weights, so do about 10 to 20 hard sets per muscle each week, mostly for 8 to 15 reps, and add about one pin at a time.

Machines have a reputation as the beginner's option, the thing you use until you are ready for "real" lifting. The research does not support that. When studies put people on machines or free weights for the same number of weeks, both groups grow about the same amount of muscle.

Machines also have real advantages for growth: they are easy to set up, they let you push close to failure without a spotter, and they can train some muscles in positions free weights cannot. This guide ranks the machine exercises that do the most for muscle growth and shows how to build a week around them.

What are the best machine exercises for building muscle in 2026?

The best machine exercises for building muscle are the leg press, seated leg curl, lat pulldown, machine chest press, seated cable row, and leg extension. Together they cover the quads, glutes, hamstrings, back, chest, and arms. The machine shoulder press and cable lateral raise add the shoulders.

Rank Exercise Main muscles Typical reps
1 Leg press Quads, glutes, adductors 8-15
2 Seated leg curl Hamstrings 8-12
3 Lat pulldown Lats, upper back, biceps 8-12
4 Machine chest press Chest, front delts, triceps 8-12
5 Seated cable row Mid back, lats, rear delts 8-12
6 Leg extension Quads, especially the rectus femoris 10-15
7 Machine shoulder press Front delts, triceps 8-12
8 Cable lateral raise Side delts 12-20

How did we rank these machine exercises?

We ranked machines by how much muscle they train, how easy they are to load and progress, and what training studies show. Studies that measured muscle growth counted most. Studies that only measured muscle activity (EMG) counted less, because a 2018 review by Vigotsky and colleagues explained that EMG amplitude alone cannot tell you how much a muscle will grow.

Multi-joint machines like the leg press and chest press rank above single-joint ones because they train several muscles with heavy loads. Two single-joint machines, the seated leg curl and leg extension, still rank high because studies show they grow muscles that the big compound lifts tend to miss.

Are machines as good as free weights for building muscle?

Yes. For muscle growth, machines and free weights work about equally well. A 2023 meta-analysis by Haugen and colleagues pooled 13 studies with 1,016 participants and found no difference in muscle growth between free-weight and machine training. A 2022 meta-analysis by Heidel, Novak, and Dankel reached the same conclusion for muscle size and power.

Strength is more specific. In both reviews, people got stronger on the type of equipment they trained with. In a 2020 study by Schwanbeck and colleagues, 46 young adults trained for 8 weeks with free weights or machines. Biceps and quad thickness grew with no difference between groups, but machine bench press strength rose 13.9% in the machine group versus 8.6% in the free-weight group. If you want a bigger barbell squat or bench, practice those lifts. If you want more muscle, pick the equipment you will use consistently.

Why is the leg press ranked first?

The leg press ranks first because it loads the biggest muscles in the body, the quads and glutes, heavily without the balance and bracing demands of a barbell squat. It is also easy to push close to failure safely, since you can stop a rep without dropping a bar.

Use a full range of motion: lower the sled until your knees are well bent and your lower back stays on the pad, then press without locking out hard. Strength transfer is specific here too. In a 2018 study by Rossi and colleagues, a squat-only group improved maximal squat strength more than a leg-press-only group. If the barbell squat matters to you, keep it; if it does not, the leg press can be your main quad lift. Our best leg exercises guide compares the two in more detail.

Is the seated leg curl better than the lying leg curl?

Yes, for muscle growth the seated leg curl beats the lying (prone) version. In a 2021 study by Maeo and colleagues, 20 adults trained one leg on a seated leg curl and the other on a prone leg curl for 12 weeks. Whole-hamstring volume grew 14% with the seated curl versus 9% with the prone curl.

The likely reason is muscle length. Sitting with your hips bent stretches the hamstrings more, and training a muscle at long lengths appears to help growth. Squats and leg presses do little for the hamstrings, so a leg curl belongs in almost every machine-based plan.

Is the lat pulldown a good back builder?

Yes. The lat pulldown trains the lats, upper back, and biceps, and unlike pull-ups it lets you pick any load, so you can work in a growth-friendly rep range from day one. We did not find a training study that measures the pulldown's effect on muscle size alone, so its rank rests on how much muscle it trains and how easy it is to progress.

Grip width matters less than people think. In a 2014 study by Andersen and colleagues, 15 men did pulldowns with grips one, one and a half, and two times shoulder width. Lat activity was similar across all three, and the wide grip allowed a little less weight (77.3 kg versus about 80 kg for the narrower grips). Use a grip slightly wider than your shoulders, pull the bar to your upper chest, and control the way up.

Is the machine chest press as good as the bench press?

For chest growth, the machine chest press is a fine substitute for the bench press. The free-weight versus machine meta-analyses found similar muscle growth, and a machine removes the need for a spotter or safety pins when you push your last reps.

Set the seat so the handles line up with the middle of your chest, keep your shoulder blades back against the pad, and press without letting your shoulders roll forward. An incline machine press or a pec deck can add upper-chest and stretch-focused chest work on a second upper-body day. Our best chest exercises guide covers angles and free-weight options.

Why does the seated cable row matter?

The seated cable row matters because it trains the mid back, the part of the back that a pulldown hits less. Pair one vertical pull (the pulldown) with one horizontal pull (the row) and your back is well covered.

Sit tall, pull the handle to your lower ribs, squeeze your shoulder blades together, then let your arms reach forward until you feel a stretch between your shoulder blades. A chest-supported row machine works the same muscles and takes your lower back out of the movement.

Are leg extensions worth doing?

Yes. Leg extensions grow a part of the quads that squats and leg presses tend to miss: the rectus femoris, the one quad muscle that crosses the hip. In a 2026 study by Kassiano and colleagues, 63 untrained women did either leg extensions or Smith machine squats for 8 weeks. The leg extension group grew the rectus femoris more at all three sites measured (for example +17.5% versus +7.9% near the knee), while the squat group grew the lower part of the vastus lateralis more (+18.2% versus +11.2%).

Do not cut the bottom of the rep short. In a 2022 study by Pedrosa and colleagues, 45 untrained women who trained only the first half of the leg extension, with the knee more bent, gained more muscle in several quad regions than women who trained only the last half or the full range.

Which machines build the shoulders?

The machine shoulder press and the cable lateral raise build the shoulders best. Pressing mostly trains the front delts and triceps, while the lateral raise trains the side delts, which give the shoulders their width.

Use a seat height that puts the handles around shoulder level for the press. For cable lateral raises, set the pulley low, stand side-on, and raise your arm out to about shoulder height. A cable keeps tension on the side delt at the bottom, where a dumbbell gets light. Rear delts get some work from rows; add a reverse pec deck if they lag. For more cable work, including overhead triceps extensions and cable curls, see our ranking of the best cable exercises for building muscle.

How many sets and reps should you do on machines?

Do about 10 to 20 hard sets per muscle each week, mostly for 8 to 15 reps, ending each set 0 to 3 reps short of failure. A 2017 meta-analysis by Schoenfeld, Ogborn, and Krieger found a graded dose-response between weekly sets and growth: each extra weekly set was associated with about 0.37% more muscle growth.

Machines suit slightly higher reps and closer-to-failure sets than barbell lifts, because a missed rep is safe. The American College of Sports Medicine's 2009 position stand recommends emphasizing loads in the 6 to 12 rep range for muscle growth. Here is a simple 4-day upper and lower week built only on machines:

Day Exercises
Upper A Machine chest press 3 × 8-12, lat pulldown 3 × 8-12, machine shoulder press 2 × 8-12, cable lateral raise 2 × 12-20
Lower A Leg press 3 × 8-12, seated leg curl 3 × 10-12, leg extension 2 × 12-15
Upper B Seated cable row 3 × 8-12, incline machine press 3 × 10-12, lat pulldown 2 × 10-12, cable lateral raise 3 × 12-20
Lower B Leg press 3 × 10-15, seated leg curl 3 × 8-10, leg extension 3 × 10-15

If you train a different number of days, the workout plan generator builds a week from your schedule, equipment, and goal.

How much weight should you add on a machine?

Add one pin, usually about 10 lb (5 kg), once you hit the top of your rep range on every set with a rep or two to spare. The ACSM position stand recommends a 2 to 10% load increase once you can do one or two reps more than your target. On light machines like the lateral raise, one pin can be more than 10%, so add reps first and only then move the pin.

Alexandros is an iPhone app built around that rule. You log a session in plain English, like "leg press 4x12 at 300, felt easy," rate how each set felt, and it tells you the weight and reps for next time with double progression, using about 10 lb (5 kg) jumps on machines and cables. Ask how your leg press is going and it answers with charts of your top weight, estimated one-rep max, and volume from your own log. Alexandros is in early access, and its terms say certain features require a paid subscription through the App Store.

Frequently asked questions

Can you build muscle using only machines?

Yes. Two meta-analyses found no difference in muscle growth between machine and free-weight training. A plan with a leg press, leg curl, leg extension, pulldown, row, chest press, and shoulder press trains every major muscle.

What is the single best machine exercise?

The leg press, for most people. It loads the quads and glutes heavily, is easy to learn, and lets you push close to failure safely.

Are machines better for beginners?

Machines are easier to learn because the path of the weight is set for you. That makes them a good place to start, though beginners can also learn free-weight lifts with light loads.

Is the Smith machine squat as good as a barbell squat?

For muscle growth it appears to work well; it grew the lower vastus lateralis more than leg extensions in a 2026 study. For barbell squat strength, practicing the barbell squat itself transfers better.

How many machine exercises should you do per workout?

Four to six is enough for most people. Pick one or two compound machines for the muscles you are training that day, then add one or two single-joint machines like the leg curl or lateral raise.

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