Shoulders Exercise · Dumbbell

Dumbbell Lying Rear Lateral Raise form demonstration - targeted for Delts Shoulders workouts

Dumbbell Lying Rear Lateral Raise

Also known as: Db Lying Rear Lateral Raise, Dumbell Lying Rear Lateral Raise, Dumbbell Lying Rear Side Raise

Category
Shoulders
Equipment
Dumbbell
Target
Delts

Biomechanical cues verified by the PlanWorkouts Science Review Board under CSCS editorial oversight; see our editorial standards.

The Dumbbell Lying Rear Lateral Raise is a targeted isolation shoulders movement designed to train the Delts with direct engagement of the Rhomboids.

Single-joint abduction or horizontal abduction isolating the lateral, anterior, or posterior deltoid heads through a curved arc of motion. Executing this with strict form maximizes muscle fiber recruitment while protecting joint structures.

Quick Exercise Facts

Movement Type Isolation Single-Joint
Equipment Dumbbell
Primary Agonist Delts
Synergists Rhomboids

Target Muscle Activation

Delts — Agonist
Traps — Synergist
Stabilizers — Core & Kinetic Chain

Lying face-down for rear lateral raises removes the swing that creeps into a standing bent-over version, since the torso is fully supported and can't contribute momentum. That strictness is the entire value of this variation — rear delts respond better to controlled isolation than to heavier, sloppier reps. It's worth prioritizing for anyone whose shoulders look front-heavy in the mirror.

How to Do the Dumbbell Lying Rear Lateral Raise

  1. Lie face down on a flat bench holding a dumbbell in each hand, palms facing one another.
  2. Let your arms hang straight down toward the floor with a slight bend in the elbows.
  3. Using your shoulder muscles, raise your arms out to the sides until they reach shoulder height.
  4. Hold briefly at the top, then lower your arms back down under control.
  5. Continue for the set reps, taking care to lower with control and reset your posture between each rep.

Recommended Sets & Reps by Training Goal

Hypertrophy & Size 3 – 4 Sets × 10 – 15 Reps

65–75% 1RM · 60s rest

Muscle Pump & Density 3 Sets × 15 – 25 Reps

50–60% 1RM · 30–45s rest

Form & Eccentric Control 2 – 3 Sets × 12 – 15 Reps

Controlled 3s eccentric · 60s rest

Biomechanical & Joint Load Cues

Single-joint abduction or horizontal abduction isolating the lateral, anterior, or posterior deltoid heads through a curved arc of motion.

Common Mechanical Mistakes & Form Errors to Avoid

  • Shrugging the Trapezius: Elevating the shoulder blades to hike the weight up shifts mechanical tension off the lateral deltoid onto the upper traps.
  • Leading with Hands Instead of Elbows: Lifting wrists higher than elbows rotates the shoulder into internal impingement; keep elbows level with or slightly above wrists.
  • Using Heavy Body English: Swinging the torso to launch heavy dumbbells turns an isolation exercise into a sloppy momentum drill with minimal delt tension.

Proper Breathing Patterns & Core Engagement

Exhale smoothly as the weights are raised to shoulder height; inhale during the controlled 2-3 second descent.

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Injury Modification & Joint Safety

If experiencing subacromial pinch during lateral raises, angle arms 15–30 degrees into the scapular plane (slightly forward of direct sideways). If joint irritation persists, immediately stop and substitute this movement with another exercise from the Shoulders exercises category.

Muscles Worked

The Dumbbell Lying Rear Lateral Raise primarily targets the Delts, with Traps as the primary synergist muscle group, along with the Rhomboids.

More Shoulders Exercises

More Delts Exercises

Equipment Alternatives

Don't have dumbbell? These target the same delts with different equipment.

FAQ

What muscles does the Dumbbell Lying Rear Lateral Raise work?
The Dumbbell Lying Rear Lateral Raise primarily targets the delts as the primary agonist. Synergist assistance is provided by the traps along with the rhomboids. Maintaining strict biomechanical alignment ensures maximal tension remains focused on the intended muscle fibers rather than shifting to surrounding stabilizer joints.
What equipment do I need for the Dumbbell Lying Rear Lateral Raise?
The Dumbbell Lying Rear Lateral Raise is performed using a dumbbell. Ensure all equipment is securely positioned with collars or safety pins locked before loading working sets. If you train in a home gym or minimal setup, explore our equipment-free and resistance band alternatives below.
What is the most common form mistake on the Dumbbell Lying Rear Lateral Raise?
The most frequent error is shrugging the trapezius: Elevating the shoulder blades to hike the weight up shifts mechanical tension off the lateral deltoid onto the upper traps.. Controlling the 2 to 3-second eccentric lowering phase ensures maximal hypertrophic stimulus while shielding connective tissue.
How many sets and reps should I perform on the Dumbbell Lying Rear Lateral Raise?
For muscle growth and density, execute 3 to 4 working sets of 10 to 15 controlled repetitions with 60 seconds rest, emphasizing a deep stretch and deliberate peak contraction on every rep.
What's a good alternative to the Dumbbell Lying Rear Lateral Raise?
If you don't have access to a dumbbell, the Left Hook. Boxing targets the same delts using body weight instead. This alternative replicates the same joint angle and movement plane while allowing you to train effectively with different available gear. You can also substitute it seamlessly in our free Workout Plan Builder.
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