Is your overhead range of motion or shoulder position trash? Try showing your pec minor some attention. Most folks go right after the t-spine and lats when working with soft tissue restrictions or lack of range of motion. Do these need to be addressed? Probably so, but you would be wise to not neglect a major player in overhead position and stooped posture.
The pec minor lies under the pec major, originates on the 3rd, 4th, and 5th ribs and attaches to the coracoid process of the scapula. It doesn't take up much space but it has a lot of responsibility and can cause major havoc. Th pec minor contributes to shoulder blade protraction, depression, and downward rotation of the scapula. It also tag teams with the serrates anterior to aid in forced inspiration. Whew, I'd be tired too man.
So what does this mean for you? Why is maintenance of the pec minor important.
We have established that the pec minor is closely interwoven with the condition of the scapula, ribs, and tspine and if any of these tissues get tight and short then it's going to be key getting your shoulders into stable positions. Pec minor dysfunction can present a huge problem, especially if you are sitting at a desk, cycling hours a week, or driving miles for work because now your arms have to internally rotate as a way to stabilize your shoulders to remedy your limited range. Taking this into the gym or sport where we spend time under load in these compensated positions your pec minor has to work really hard to keep your shoulder stable causing chronic tightness.