Dynamic Chest Stretch
The dynamic chest stretch is a bodyweight movement that dynamically opens and stretches the pectoral muscles through arm swings. The momentum-based movement warms up the chest, shoulders, and thoracic spine, making it ideal as a pre-workout mobility drill.
How to do it
- Stand upright with your feet shoulder-width apart and arms extended out to the sides.
- Swing your arms forward, crossing them in front of your chest.
- Open them back out wide behind you.
- Continue the swinging motion fluidly for the desired repetitions.
- Gradually increase the range of motion with each swing.
Form cues
- Keep your chest lifted
- Keep your arms straight
- Control the swing motion
- Maintain a steady rhythm
- Relax your shoulders down
Breathing: Inhale as you open your arms wide and exhale as you bring them across your chest.
Common mistakes
- Arching your lower back, which puts strain on your spine
- Using jerky movements, which can irritate shoulder joints
- Holding your breath, which prevents your muscles from relaxing
Muscles worked
Primary: chest. Secondary: shoulders, traps.
Suggested sets & reps
Get fitter
2 sets × 30–45 seconds, rest 30s
Lose weight
2 sets × 30–45 seconds, rest 30s
Build muscle
2 sets × 30–45 seconds, rest 30s
Easier, harder & alternatives
Make it easier
Make it harder
Take care if…
- If you feel sharp pain in your shoulders or chest, stop the movement immediately.
- If you have a history of shoulder injuries, start with a very small range of motion.
General educational guidance, not medical advice. Stop on sharp pain and check with a qualified professional if unsure.
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Start free →Frequently asked questions
When should I do this stretch?
It is best used as part of your warm-up routine before upper-body exercises to prepare your joints.
Should I feel a stretch in my back?
You may feel a gentle tension in your upper back as you open your arms, but avoid overstretching or feeling pain.
Can I do this if I have shoulder pain?
If you feel sharp pain or discomfort, stop immediately and choose a gentler range of motion or consult a professional.