For instance, if you have an internal rotation of the arm, which is very typical to many people with kyphotic posture, this position of the arm can create a protraction of scapula and this might affect or even harm your shoulders while you do various asanas. (yogauonline.com)
• Don't put too much of the tension on your biceps and focus on scapula retraction instead. (fitnessandpower.com)
The ones that are needed are the depressed and retracted scapula. (ashotofadrenaline.net)