Seated Chest Opener(Chair Cardio)
The seated chest opener is a chair-based cardio exercise that dynamically opens and closes the arms to engage the chest and shoulders. The rapid arm movement increases heart rate while stretching the pectoral muscles, making it an effective seated cardio and mobility drill.
How to do it
- Sit upright in a chair with your feet flat on the floor.
- Extend both arms out to your sides at shoulder height.
- Rapidly draw your arms in front of you, crossing them at the wrists, then open them back out to the sides.
- Continue the opening and closing motion at a brisk pace.
- Perform for the desired duration to elevate the heart rate.
Form cues
- Sit tall with your feet flat on the floor.
- Keep your arms at shoulder height.
- Move your arms briskly without rushing.
- Breathe steadily throughout the movement.
Breathing: Inhale as you open your arms wide, and exhale as you bring them across in front of you.
Common mistakes
- Slouching in the chair, which limits chest engagement and posture support.
- Moving too fast with loose form, which reduces control over the shoulders.
- Holding your breath, which raises unnecessary tension during cardio work.
Muscles worked
Primary: chest. Secondary: shoulders, traps.
Suggested sets & reps
Get fitter
3 sets × 30–45 seconds, rest 60 s
Lose weight
3 sets × 45 seconds, rest 45 s
Build muscle
3 sets × 12–15 reps, rest 60 s
Easier, harder & alternatives
Make it easier
Make it harder
Alternatives
Take care if…
- If you feel shoulder discomfort, ease off the range of motion or choose a gentler stretching option.
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
Can I do this exercise if I have lower back discomfort?
Yes, sitting supported in a chair keeps the focus on your upper body while keeping your lower back stable.
How often can I include this in my day?
You can use this movement as part of a daily seated cardio routine or as a light warm-up.
Should I feel this in my shoulders?
It is normal to feel light engagement in your shoulders and chest as you open and close your arms.