When it comes to strength training, certain muscles take center stage—pectorals, lats, quads, and delts often dominate ...

This area also contains muscles, blood vessels, and nerves that support and protect these organs. Problems with organs or supporting structures in or around the left rib cage region can contribute ...

Flex your muscles, make everything as big as possible ... and you’re going to shoot them past your rib cage as hard and violently as you can, and it turns your body into a wedge, and the ...

This made your chest cavity bigger. Your intercostal muscles between your ribs tightened up, too. This made your rib cage move up and out. Now breathe out. Your diaphragm loosened up and moved ...

In fact, it is their rib cage, and their spine ... So instead they rely on sheets of muscles within their shell to pump in oxygen through their mouths. That is, most of the time.

That means letting the diaphragm — the large, thin muscle just below the rib cage — do the work of drawing air into the lungs and letting it out. It's known as diaphragmatic or belly breathing ...