How to do Machine Rear Delt Reverse Fly

To do Machine Rear Delt Reverse Fly well, set your position first, brace hard, and move through a controlled range you can repeat. Machine Rear Delt Reverse Fly primarily trains Rear Delts while also loading Traps. The most common mistake is losing setup tension, so reset your brace and tempo before each rep instead of forcing extra load. Progress by adding reps first, then add a small load increase once every set meets the same technical standard.

Step-by-step form

Set up: Select the appropriate load.
Brace: Adjust the seat height. The handles should be at shoulder level when you're seated.
Initiate: Sit down and grab the handles with your palms facing down.
Main rep path: Bring your shoulders back and take a breath.
Hardest point: Extend your arms to your sides and back.
Finish: Hold the position for a moment, squeezing your upper back.
Reset: Bring your arms to the starting position as you exhale.

Who this variation is for

Machine Rear Delt Reverse Fly is best for lifters who want practical coaching cues and consistent execution week to week.

Best fit: Building reliable rear delts reps across training blocks
Not ideal when: You feel sharp joint pain even after reducing load and range.
Better option if not ideal: Dumbbell Rear Delt Reverse Fly

Setup and equipment

Start every set by matching the same setup landmarks so your reps are comparable and easier to progress.

Setup position: Adjust seat, pads, and handles before adding working load.
Equipment setup checks: Align seat and pad so the joint lines up with the machine pivot.
Start load/resistance: Start with a pin weight that leaves 2-3 reps in reserve on your first working set.
Bracing and breathing plan: Bring your shoulders back and take a breath.

Muscles worked and movement pattern

Machine Rear Delt Reverse Fly is a load movement that should load Rear Delts first while keeping stabilizers active through the full rep path. If the movement is set up correctly, the target muscles should do the work while joints stay controlled and pain-free.

Role	Muscles
Primary	Rear Delts
Secondary	Traps
Stabilizers	Core and joint stabilizers

Form tips for better reps

Set your stance and grip before each set.
Brace before every rep, not midway through.
Control the lowering phase for 2-3 seconds.
Stop the set when position changes, not when ego says.
Keep joints aligned with the machine path.

Common mistakes and how to fix them

Mistake	Why It Happens	Fix
Seat or pad position is off	Machine setup changes between sessions	Align joint with machine pivot before loading and note your setup settings.
Losing brace at the hardest point	Breathing pattern changes once effort rises	Reset your breath before each rep and keep trunk tension through the sticking point.
Using load that shortens your working range	Load is ahead of current control	Reduce load by 10-15% and rebuild full, repeatable range before progressing.

What you should feel

At the start of each rep: Stable base and trunk tension before moving.
During lowering or lengthening: Rear Delts and Traps should load gradually.
During the hardest point: Effort should peak in the target muscles, not in sharp joint pain.
At lockout or finish: You should reach end range without bouncing or overextending.
If you feel joint pain: Reduce load and range immediately, then switch to an easier variation if needed.

Regressions (Easier Versions)

Bodyweight variation of Rear Delt Reverse Fly when you need to relearn setup and range.
Dumbbell Rear Delt Reverse Fly when balance or joint tolerance limits clean reps.

Progressions (Harder Versions)

Add a 1-second pause at the hardest point once all reps are clean.
Add 2.5-5% load after hitting top-end reps for two sessions.

Alternatives by Equipment

Alternative	When to use it	Why it helps
Dumbbell	When unilateral control or joint-friendly range matters	Improves side-to-side balance and movement freedom
Cable	When you want consistent tension across the range	Keeps muscles loaded where free weights often unload

How many sets and reps to do

Pick your Machine Rear Delt Reverse Fly track based on your current priority: strength, muscle gain, or skill rebuild. Keep 1-3 reps in reserve on most sets, then progress when rep quality stays stable across sessions.

For Strength

Sets: 3-6
Reps: 3-6
Rest: 2-4 min
Frequency: 1-3x/week
Progression rule: Add 2.5-5% load once top-end reps are clean across all sets.

For Muscle Growth

Sets: 3-5
Reps: 6-15
Rest: 60-120 sec
Frequency: 2-4x/week
Progression rule: Add reps first inside your range, then add a small load jump when all sets hit the top end.

For Skill / Return to Training

Sets: 2-4
Reps: 6-12
Rest: 60-120 sec
Frequency: 2-3x/week
Progression rule: Increase range, control, and repeatability before making the exercise harder.

4-week example progression

Week	Sets x reps	Load or difficulty target	Goal
1	3 x 8	Conservative load	Own setup and full range
2	3 x 9-10	Same load, more reps	Build rep consistency
3	4 x 8	Add one set or 2.5-5% load	Increase training stimulus
4	4 x 8-10	Match week 3 load with cleaner reps	Consolidate progression

Where to put this in your workout

Primary slot: Place this after your first priority lift while technique is still clean.
Best pairing: Pair with Dumbbell Chest Supported Reverse Fly or a non-competing pattern.
Fatigue note: Leave 1-2 reps in reserve on early sets.

Safety and Contraindications

Use a variation and load you can control without sharp pain. Stop the set if pain changes your movement pattern, and adjust range or variation before trying to push harder.

Stop the set if: Sharp pain, numbness, or sudden loss of control appears.
Use caution if: You are returning from recent joint, tendon, or back irritation.
Safer substitutions: Bodyweight patterning, machine-supported variation, or reduced range with slower tempo.

FAQs

How close to failure should I train Machine Rear Delt Reverse Fly?

Most sets work best at 1-3 reps in reserve. Push closer to failure only on the final set if rep quality is still stable.

Should Machine Rear Delt Reverse Fly be early or late in a workout?

Place it early when this movement is a priority. Move it later when it is an accessory after your main lift.

How do I progress Machine Rear Delt Reverse Fly week to week?

Use double progression: add reps first inside the target range, then add 2.5-5% load when you can hit top reps with clean form.

What should I do if my form breaks down on later sets?

Reduce load by 5-10% or remove one set and keep the same technical standards. Add volume back only after all reps look consistent again.

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How to do Machine Rear Delt Reverse Fly with proper form