Dumbbell lateral raise: form, muscles and variations

What is a dumbbell lateral raise?

A dumbbell lateral raise is a resistance exercise in which you lift a dumbbell in each hand away from your sides, then return the weights under control. Research protocols describe the movement as shoulder adduction and abduction.⁴ It is usually included as one part of an upper-body or full-body strength programme rather than used as a complete shoulder session on its own.

Research supports the lateral raise as a relevant exercise for the middle portion of the deltoid. In a peer-reviewed study of eight strength-trained men, the researchers tested free-weight and cable crossover lateral raises alongside several presses, rows and fly movements. The medial deltoid showed similar activation during lateral raises, the reverse pec deck and seated row, at approximately 55%, 48% and 40% respectively.⁵ These electromyography values describe that small study, not the amount of muscle growth any individual will achieve.

The movement looks simple, but the useful skill is keeping the raise repeatable. Your load, range, elbow angle and torso position should remain similar from one repetition to the next. If the dumbbells become heavier but you have to swing them through a shorter or less controlled path, you have changed several variables and cannot make a clean comparison with your earlier work.

How do you do a dumbbell lateral raise?

1. Stand in a stable position with one dumbbell in each hand and your arms by your sides.
2. Set a small bend at each elbow and keep that bend broadly unchanged.
3. Lift both arms out to the sides in a smooth motion, stopping at a comfortable point no higher than you can control.
4. Pause briefly without deliberately shrugging or throwing the weights upwards.
5. Lower the dumbbells slowly to the starting position and let them settle before the next repetition.

Bangor University’s lateral arm raise demonstration gives a clear reference point: start with the arms by your sides, breathe out while lifting to the side until the arm is parallel to the floor, keep the elbows slightly bent, then breathe in while returning slowly.³ That is a useful demonstration, not a requirement to force every shoulder through exactly the same range.

Begin with the movement itself rather than a target load. Rehearse a few unweighted repetitions, then choose dumbbells that let you preserve the same path without a jump from the knees or a backward lean. The NHS describes strength exercise as activity that makes the muscles work harder than usual and says to start gradually and build over weeks.² A lighter, repeatable raise is therefore a more useful starting point than a heavier, improvised one.

Which muscles do lateral raises with dumbbells work?

The primary area studied in lateral raises is the middle or lateral portion of the deltoid. Botton and colleagues recorded the anterior, medial and posterior portions of the deltoid while eight trained men performed eight upper-body exercises at a 10-repetition-maximum load.⁵ Their results place the lateral raise among movements with substantial medial-deltoid activity under that protocol.

The study does not show that the exercise isolates one tissue completely, and it did not quantify the contribution of the upper back, trunk or forearms.⁵ Avoid assigning a precise role to each area from sensation alone. For a practical form check, concentrate on whether your chosen range, elbow position and torso position remain consistent across the set.

Electromyography and muscle thickness answer different questions. The 2013 study recorded electrical activity during exercise,⁵ whereas the 2025 trial used ultrasound to assess changes in lateral-deltoid thickness after eight weeks.⁴ A higher activity reading in one session should not be treated as a direct prediction of longer-term growth, and neither study supplies a personal load prescription.

How high should you lift the dumbbells?

Arm parallel to the floor is a practical reference, not a depth test. Bangor University uses that endpoint in its demonstration and specifies a slight elbow bend and a slow return.³ Stop earlier if that is the range in which you can keep the movement comfortable and controlled. Do not push through symptoms simply to make your hands reach a visual marker.

A phone recording from the front can help you check consistency. Film one light set, with the whole upper body visible, and compare the highest position of the elbows rather than trying to estimate the dumbbells’ path from memory. Also check whether one side begins earlier, whether your torso tips, and whether the final repetitions become abrupt. This is a training demonstration and self-check, not a clinical assessment.

Avoid turning the top position into a competition. The goal is not to place the dumbbells as high as possible or to copy somebody whose movement differs from yours. Pick a comfortable endpoint and reproduce it. If your available range changes unexpectedly or movement causes symptoms, stop and follow the NHS safety advice below.⁶

What are the common dumbbell lateral raise mistakes?

The most obvious mistake is using momentum. A knee dip, hip drive or backward lean makes the repetition unlike the controlled version you intended to track. Reduce the load until you can start and finish each raise without launching it. If some body movement appears late in a set, record that rather than treating every repetition as identical.

Another mistake is changing the elbow angle during the lift. The problem for tracking is not a claimed change in lever length, but that the repetition no longer matches the one before it. Set a soft bend before you begin and keep it broadly stable, in line with the Bangor University instruction that the elbows should be slightly bent.³ Do not lock the joint rigidly.

An exaggerated shrug also departs from the movement you intended to repeat. Do not add one simply to move the weights farther. A further error is dropping the dumbbells quickly. Bangor University specifically instructs a slow return,³ which gives you a clear standard for the lowering phase.

• Too much load: the torso leans and the dumbbells are thrown upwards.
• Changing range: early repetitions reach one height and later ones stop much lower.
• Moving the hands first: the wrists rise while the elbows lag behind.
• Rushing the descent: the weights fall rather than returning under control.
• Comparing unlike sets: standing, seated and cable versions are logged as if they were identical.

Is a cable lateral raise better than a dumbbell lateral raise?

Current direct evidence does not establish one as universally better for muscle growth. Larsen and colleagues studied 24 resistance-trained men and women for eight weeks. Each participant had one arm randomly allocated to the cable version and the other to the dumbbell version, with range matched between conditions. Both were performed twice weekly for five sets taken to momentary failure.⁴

Lateral-deltoid thickness increased by 3.3% to 4.6% during the intervention. The statistical analysis supported no meaningful difference between conditions, and the authors concluded that dumbbell and cable lateral raises were similarly effective in these trained lifters.⁴ This does not show that every set-up, load or user will receive identical results. It shows that both were viable under the study protocol.

Choose by access and your ability to repeat the set-up. Dumbbells require no machine adjustment. A cable requires you to record the attachment, pulley setting and stance. For a single-arm cable lateral raise, hold the handle with the working hand, step far enough away to remove slack, keep the torso steady and perform the same controlled side raise. Reset the stance before changing sides.

How many lateral raises should you do?

There is no single lateral-raise prescription that suits every training goal and experience level. For general muscle-strengthening activity, the NHS suggests 8 to 12 repetitions per activity as one set, at least 2 sets, and notes that 3 sets may provide more benefit.² That is broad public guidance, not a rule that every lateral-raise set must fit those numbers.

Choose a load that allows the planned repetitions without replacing the raise with a swing. The NHS describes sufficient strengthening effort as reaching the point where you may need a short rest before continuing.¹² You do not need to reproduce the research protocol of five sets to momentary failure. Its participants were already resistance trained, and the protocol was designed for a study comparison.⁴

Place the exercise where it fits your wider programme and recovery. The NHS advises adults to strengthen all major muscle groups on at least two days each week.¹ That means shoulders are part of a balanced plan that also includes the legs, hips, back, abdomen, chest and arms. It does not mean lateral raises themselves are compulsory twice weekly. For planning, see sets and reps and progressive overload.

How can you measure lateral raise progress at home?

Start by standardising the demonstration. Use the same dumbbells, stance, elbow bend and endpoint, then film one set from the front every few weeks. Keep the camera in the same place. Compare only similar sets, and look for controlled repetitions rather than cosmetic differences between two images. A recording is most useful when it answers a narrow question such as whether your range stayed consistent.

Log load in kilograms, completed repetitions and a short quality note. If you use adjustable dumbbells, record the weight on each dumbbell, not the combined total. For unilateral cable work, log left and right separately. Cable-stack labels and dumbbell markings are not interchangeable, so maintain separate trends for each variation.

Progress may mean more controlled repetitions at the same load, a steadier range, a modest load increase with unchanged form, or less need to pause between repetitions. One session can be affected by familiarity, fatigue and set-up, so read the trend across several comparable sessions. If you are new to resistance work, how to start strength training provides a broader starting framework.

How can you demonstrate the movement safely to someone else?

Use a light or unweighted demonstration and show the movement from both the front and side. First demonstrate the start position, the slight elbow bend, the controlled lift and the slow return. Then ask the learner to copy one element at a time. Avoid loading the movement heavily merely to make the demonstration look challenging.

Give observable feedback rather than promising a particular muscle sensation. For example, say that the elbows reached a similar height or that the lowering phase became faster. If the person cannot keep the movement controlled, reduce the resistance or shorten the range. Bangor University also notes that doing one arm at a time may be easier.³

A demonstration cannot establish why someone has restricted movement or symptoms. The NHS says these general exercises are suitable for most people in good health with a reasonable fitness level, while people who are unsure about suitability, have an injury, symptoms, a health problem or a recent health event should seek professional advice first.⁶

Frequently asked questions