The pectineus is a small, quadrangular stealth muscle that creeps up on you without warning. A muscle that wreaks havoc not only in the groin, but can cause diaphrahm pain, groin pain, and impede proper biomechanics & breathing.
Have you ever awoken the next day from a squat/leg workout [or cycling, hockey, football, sprinting, horseback riding, etc] feeling so sore you can’t really walk or stand or breath properly? I am pectineus- feel my pain!
The pectineus attaches from the superior pubic ramus to your pectineal line. Simply put- it goes from your pubic bone to your upper femur bone. The pectineus is one of your many groin/ adductor muscles (adductor brevis, adductor longus, adductor magnus, gracilis).
The difference between this muscle and other groin muscles is its proximity and interconnectedness to the psoas and illiacus. These three muscles are intertwined within their fascial fibers. If one muscle is unhealthy, dehydrated, and tight, the others will follow suit. In addition, the psoas is married to the diaphragm in a similar fashion.
To make my point, Thomas Myers, author of Anatomy Trains, has dissected many cadavers and shown clearly the relationship of the pectineus to the diaphragm. Upon a slight pull of the pectineus the fascial line went straight up through the psoas to movement in the diaphragm. This connection about a potential cause of diaphragm pain and groin pain is an incredible finding shedding light on many athletes’ issues with groin pain and tacked down, hard to use diaphragms. How easy is it for you to breathe?
If you have any restrictions in your breathing (can’t breathe fully/properly) this will impact your pelvis and groin region placing more constraint/inhibition of muscle use and increased risk of injury. How can you increase mobility of the pectineus? Find out in my next post!