04/12/2026
Inspiration / Expiration: Analysis by physio_fixers
“Although breathing seems automatic, it involves a fascinating muscular choreography. Here I explain how the push and pull of your rib cage works:
🔹 INHALATION (Taking in air) ⬆️
It's an active process! The main protagonist is the diaphragm, which contracts and moves down to make room for the lungs. Additionally, neck muscles (such as the sternocleidomastoid and the scalenes) and the external intercostals pull your ribs upward and outward, as if opening an umbrella.
🔹 EXHALATION (Releasing air) ⬇️
At rest, it's a relaxation process, but when you exhale forcefully (like during exercise or blowing up a balloon), your abdominal muscles come into action! The re**us abdominis and obliques contract to push the diaphragm upward, while the internal intercostals pull the ribs downward to expel the air.
Why is it important to know this?
Understanding the mechanics of your breathing helps you improve your posture, perform better in your workouts, and better control stress through deep breathing.”
- PhysioFixers
Image: Authors
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