Dynamic Chest Flys
Sweep the arms open and closed at shoulder height to mobilise the chest dynamically.
Overview
Dynamic Chest Flys is a beginner dynamic warm-up on Flexor that sweeps the arms open and closed at shoulder height to mobilise the chest and shoulders.
What Dynamic Chest Flys targets
You'll feel the pectoralis major and front deltoids warming as the arms arc through repeated open-and-close reps.
Why add Dynamic Chest Flys to your routine
Warms the chest and shoulders through repeated horizontal arm arcs.
- Prepares the pecs and anterior deltoids for pressing and overhead work.
- A low-load dynamic option before swimming, tennis, or bench sessions.
Who it's for
Swimmers, tennis players, and lifters who want chest activation before training.
When to do it
Use in upper-body warm-ups or before pressing and overhead sessions.
Dynamic Chest Flys are repeated arm arcs that open and close the chest with a soft elbow bend. Move through smooth reps to warm the pectorals and shoulders before pressing or swimming.
Setup cue
Stand tall or lie on your back with arms open wide at shoulder height. Keep a soft bend in your elbows and palms facing forward or up.
Practice notes
In Flexor, Dynamic Chest Flys is typically prescribed as about 45 sec per round, 1 rep, and 1 set. Adjust the dosage to what feels sustainable, breathe steadily, and ease off if anything feels sharp or unsafe.
Guidance
How to perform, tips, mistakes, safety notes, and benefits for Dynamic Chest Flys.
Follow these cues in order. Move with control and stay in a comfortable range.
- Stand tall or lie on your back with arms open wide at shoulder height.
- Keep a soft bend in your elbows and palms facing forward or up.
- Bring arms toward each other until the chest gently contracts, then reopen with control.
- Move through smooth reps without bouncing your shoulders.
Cues that help the movement stay smoother and more controlled.
- Keep a soft bend in the elbows throughout each rep.
- Open the arms only to shoulder height — avoid forcing behind the body.
- Move through smooth reps without bouncing the shoulders.
Patterns to watch for so the shape stays clearer.
- Swinging the arms too fast and losing shoulder control.
- Arching the lower back to open the arms wider.
- Shrugging the shoulders toward the ears at end range.
Keep things comfortable and stop if something feels wrong.
- Stop if you feel sharp pain, numbness, tingling, dizziness, or symptoms that radiate.
- Stay within a comfortable, controlled range; muscular effort or mild stretch tension should not become pain.
- Move smoothly without bouncing, jerking, or forcing the range.
Why people include this movement in their practice.
- Warms the chest and shoulders through repeated horizontal adduction and abduction.
- Prepares the pecs and anterior deltoids for pressing and overhead work.
- A low-load dynamic option before swimming, tennis, or bench sessions.
Similar movements to explore next
-
Arm Circles
Shoulder circles at arm's length to warm the rotator cuff and open the chest before upper-body work.
-
Arm Swings
Rhythmic forward-and-back arm swings to loosen the shoulders and upper back before activity.
-
Cactus Arms
Arms at shoulder height with 90° elbows and palms forward to open the chest and retract the shoulder blades.
-
Chest Opener
Clasp your hands behind your back and draw the shoulder blades down to open the chest.
-
Corner Pecs Stretch
Lean into a corner with forearms on the walls to stretch the chest and front shoulders.
-
Doorway Pecs
Place forearms on a door frame and lean forward to stretch the chest and shoulders.
-
Reverse Shoulder
Standing clasped-hand lift behind the back to open the chest and anterior shoulders.
-
Seated Chest
Seated chest opener: hands planted behind you to stretch pecs and front shoulders.
Common questions
Which body areas does Dynamic Chest Flys target?
Dynamic Chest Flys is a dynamic stretching and warm up movement that mainly targets your chest and shoulders. Move within a comfortable range and skip it if it does not feel suitable for you.
Which muscles does Dynamic Chest Flys work?
Primary muscles associated with Dynamic Chest Flys include pectoralis major. Flexor presents this as general wellness guidance, not a clinical assessment.
Is Dynamic Chest Flys suitable for beginners?
Dynamic Chest Flys is listed as beginner in Flexor. Choose a smaller range of motion, fewer repetitions, or an easier variation whenever you want more control.
How long should you hold Dynamic Chest Flys?
In Flexor, Dynamic Chest Flys runs for about 45 sec per round. Adjust the time to what feels sustainable, breathe steadily, and ease off sooner if anything feels sharp.
How do you do Dynamic Chest Flys?
Dynamic Chest Flys has 4 guided steps. Follow them in order on this page, breathe steadily, and keep the movement smooth and within a comfortable range. Stop if anything feels sharp, unstable, or unsafe for you.
Do you need any equipment for Dynamic Chest Flys?
No. Dynamic Chest Flys is a no-equipment movement you can do at home with just enough space to move comfortably.
Which Flexor routines include Dynamic Chest Flys?
Dynamic Chest Flys appears in guided Flexor sessions such as Rise and Shine, Shoulder Space Builder, Shoulder Glide Routine, and Shoulder Stability & Ease. Open a routine page to follow the full sequence, or practise this movement on its own from this guide.
Is this medical advice?
No. Flexor provides general fitness and wellness guidance. It does not diagnose, treat, or prevent medical conditions. Speak with a qualified professional about injuries, persistent pain, or health concerns.
