Appears in642 Workouts*

Lever Seated Side Single-Arm Rear-Delt Fly

Isolate and strengthen your rear deltoids with the Lever Seated Single-Arm Rear-Delt Fly. Build shoulder definition and improve posture.

The Lever Seated Side Single-Arm Rear-Delt Fly mainly works the shoulders, with help from the back and traps. You'll need: cable machine or single handle attachment.

Lever Seated Side Single-Arm Rear-Delt Fly demo video 2
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Required Equipment

Cable Machine
Cable Machine
Single Handle Attachment
Single Handle Attachment

Lever Seated Side Single-Arm Rear-Delt Fly Muscles Worked

Primary

Rear Shoulder (Delts) (posterior deltoid)

Secondary

Lats (latissimus dorsi); Rhomboids (Shoulder Blade) (rhomboids, major & minor); Mid Traps (trapezius, middle fibers)

How to do the Lever Seated Side Single-Arm Rear-Delt Fly

Lever Side Seated Single Arm Rear Delt Fly Instructions

Starting Position

  1. Adjust the machine: Set the seat height so that when seated, your arms can reach the handle comfortably at shoulder height.

  2. Sit down: Take a seat on the machine, ensuring that your back is against the support pad.

  3. Positioning your body: Lean slightly forward and grasp the handle with one hand (the opposite hand can rest on your knee for support). Your legs should be slightly bent, and your feet flat on the floor.

Movement

  1. Initiate the movement: Keeping your elbow slightly bent, pull the handle out to the side, leading with your elbow. Aim to keep your upper arm parallel to the floor while moving.

  2. Focus on the rear deltoid: As you pull, squeeze your shoulder blades together and feel the contraction in your rear deltoid. Avoid using momentum—focus on controlled movement.

  3. Return to starting position: Slowly lower the handle back to the starting position, maintaining control throughout. Do not let the weight stack touch down to maximize muscle engagement.

Repetitions

  • Perform 10-15 repetitions on one arm before switching to the other arm. Aim for 3 sets total.

Tips

  • Keep your core engaged and maintain good posture throughout the exercise.

  • Avoid arching your back or using your lower body to assist in the movement.

  • Start with a lighter weight to master the form before increasing the resistance.

Lever Seated Side Single-Arm Rear-Delt Fly FAQs

What muscles does the Lever Seated Side Single-Arm Rear-Delt Fly work?

The Lever Seated Side Single-Arm Rear-Delt Fly mainly works the shoulders, with help from the back and traps. The main muscles are the posterior deltoid.

What equipment do you need for the Lever Seated Side Single-Arm Rear-Delt Fly?

Cable machine or single handle attachment.

What workout day should the Lever Seated Side Single-Arm Rear-Delt Fly go on?

It belongs on pull day in a push/pull/legs routine.

What are some Lever Seated Side Single-Arm Rear-Delt Fly variations and alternatives?

Similar exercises include the Bodyweight Bent-Over Rear-Delt Fly, Cable Incline Rear-Delt Fly with Supported Back, Cable High-Pulley Single-Arm Rear-Delt Fly and Cable Rear Drive.

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