"Whenever i perform horizontal pushing exercises like push ups my left scapula tends to jut out more than the right? Is that because of "locked long" rhomboids?" That is what we called winging of the scapula which can be due Seratus anterior subscapularis or infraspinatus weakness or lengthening.
Thank You for your feedback! I believe the reference materials will be very useful. I'll try to get it asap. I understand that winging of the scapula can be caused by serratus anterior weakness but how does the subscapularis and infraspinatus affect it as well?