Winged scapula are often a result of the shoulder blade not being able to glide freely on the ribcage due to compression within it (poor breathing mechanics). This causes the scapula to deviate outward in an attempt to find more movement.
Respiration
Breathing involves many joint actions at both the ribcage and pelvis. If you cannot breathe well, your skeleton is likely biased in a state of inhalation or exhalation. Being stuck in a given orientation of joint actions can restrict other ones, resulting in certain tissues and structures repetitively being stressed over time.
The infrasternal ribs are the most pliable ("changeable") in the entire axial skeleton, so they are easily reformed because they don't attach on the sternum. It helps bias us toward certain skeletal positions and joint actions.
Reaching is one of the most important activities to have in any exercise or sports performance program. There, I said…
What it ultimately comes down to is that we favor our right sides and our asymmetrical nature puts us in this position.
This is completely normal and not a problem at all, but what matters is that this asymmetry can be exasperated by poor breathing, postural integrity, and lifestyle habits like sitting too long.
It has been shown in studies (Vico et al, 2014; Alghadir et al, 2015) that tongue posture contributes significantly to postural stability and potential muscular strength. Why is this? It’s because the tongue is part of a myofascial chain called the Deep Front Line.
“Toning up the core” is a common concept within practices in the Health & Fitness community. Hundreds of sit-ups, planks for minutes, and extension-driven ab wheel rollouts are a few examples of exercises personal trainers or online resources will likely prescribe to you for a “good core workout”.