Lateral Raises

Stand with a dumbbell in each hand at your sides. With a slight bend in your elbows, raise the dumbbells out to the sides until your arms are parallel to the floor. Lower with control.

Pro Tips

• Lead with your elbows, not your hands
• Use a light weight with strict form — momentum defeats the purpose
• Stop at shoulder height; going higher shifts to traps

Muscles worked

Primary: Lateral (middle) deltoid head — the abductor of the shoulder, directly loaded as the arm rises out to the side against gravity. Lateral raises are the most direct isolation exercise for the lateral delt, which is the primary contributor to shoulder width.

Supporting: Supraspinatus (rotator cuff muscle that initiates the first 15–30 degrees of shoulder abduction before the deltoid takes over), upper trapezius (assists at the top of the range — which is why stopping at shoulder height keeps trap involvement minimal).

Common mistakes

Going too heavy: Heavy lateral raises almost always degrade to a shrugging, swinging, and trapping motion that removes the lateral delt from the load path. The lateral deltoid is a relatively small muscle. Correct form at moderate weight produces better stimulus than heavy weight with momentum. The “too heavy” threshold is lower than most lifters expect.

Internal rotation (thumbs down): A popular cue suggests tilting the thumbs down (as if emptying a can) to isolate the lateral head. This actually reduces supraspinatus contribution but does not significantly change lateral deltoid loading, and it increases shoulder capsule stress at high loads. Neutral thumbs (pointing forward, not down) is the standard.

Raising above shoulder height: Once the arms pass horizontal, the upper trapezius becomes the primary elevator, not the lateral deltoid. The productive range for lateral deltoid loading is from beside the body up to horizontal — shoulder height.

No eccentric control: The lowering phase under the weight of the dumbbell is where significant lateral delt loading occurs. Letting the arms drop to the sides eliminates this entirely. A 2–3 second controlled descent is a simple way to double the effective time under tension of each set.

Programming notes

Lateral raises are the primary direct lateral deltoid exercise in virtually all hypertrophy programmes. The lateral head of the deltoid receives minimal direct loading in pressing movements (which primarily load the anterior head), making lateral raises the only exercise that specifically develops shoulder width.

Typical programming: 3–5 sets of 12–20 repetitions, placed as a finisher after compound pressing and overhead work. High-volume lateral raise programming (multiple sets of 15–25 reps) is common in bodybuilding contexts where shoulder width is a primary goal.

Frequently asked questions

How much weight should I use for lateral raises?

Use a weight you can lift with strict form through the full range — arm beside the body up to shoulder height — for at least 12 clean reps. For most lifters this is lighter than expected: 5–10 kg dumbbells are common even for intermediate trainees. If you find yourself shrugging, swinging, or losing elbow bend to complete the rep, drop the weight. The lateral deltoid is a small muscle; overloading it with momentum shifts work to the traps and front delt and defeats the purpose of the exercise.

Should I do lateral raises with cables or dumbbells?

Both work, and the difference is smaller than the internet suggests. Dumbbells provide peak tension at the top of the range, where the arm is horizontal. Cable lateral raises (attachment at the low pulley) maintain tension at the bottom of the range, where dumbbells go nearly slack. If you have access to cables, alternating sets or using cables as a finisher after dumbbells gives you more complete loading across the full range of motion. If you only have dumbbells, they are entirely sufficient for building shoulder width.

How many sets of lateral raises do I need per week?

Research and practice converge on 10–20 sets per week for meaningful lateral delt hypertrophy, spread across at least two sessions. Many lifters start at the lower end — 6–10 sets — and add volume gradually as the shoulder adapts. The lateral delt recovers relatively quickly compared to larger muscle groups, which is why high-frequency, moderate-volume approaches (4–6 sets, three times per week) are common in dedicated shoulder programmes. More than 20–25 sets per week offers diminishing returns for most lifters and increases injury risk around the shoulder capsule.