Whenever I hear The Boss’s song, Glory Days, I immediately start picturing my athlete yogis in my mind (perhaps not the most common reaction to a song, but it’s mine). Among them, there is a common thread: they all want to continue playing and keep the Glory Day reflections at bay.

While many traditional coaches focus on the bigger picture of the body, smaller yet extremely important muscles may be overlooked. The flexor digitorum superficialis, an extrinsic flexor muscle at the proximal interphalangeal joints of the second through fifth fingers is one of those. Wait – what does that mean? Take a moment to reflect how many movements you do where your fingers or wrist are flexing and extending in a given day. It’s a lot! Your flexor digitorum superficialis is the MVP in that movement.

Take care of your flexor digitorum superficialis to maintain your motor skills.

Why focus on this? Tending to the flexor digitorum superficialis allows a baseball player to grasp the baseball before pitching or throwing it. It allows an equestrian to have a softer, more refined tune on the reins. It allows a receiver to catch a football and tuck it in for safe keeping while sprinting to the touchdown line. A hockey player has greater control of his stick and puck by contracting and releasing the flexor digitorum superficialis in the slightest increments. It even allows me to type this article. Bend/extend/bend/extend as my fingers strike the keyboard.

OK, so where do I find it? The flexor digitorum superficialis is located on the anterior side of the forearm and originates at the bottom edge of the upper arm bone, or more specifically the medial epicondyle of the humerus, and at the ulna and radius. As it tracks down the forearm, it fissures into 4 channels through the carpel tunnel and ultimately attaching to the sides of the second knuckle of your 2nd through 5th fingers.

So, moral of the story, don’t be sidelined and let your Glory Days pass you by because your flexor digitorum superficialis didn’t get enough love. Remember – it’s the MVP, gold medalist, shining star in its movement. Don’t let the big guys overshadow it.

“I had a friend was a big baseball player
back in high school
He could throw that speedball by you
Make you look like a fool boy
Saw him the other night at this roadside bar
I was walking in, he was walking out
We went back inside sat down had a few drinks
But all he kept talking about was
Glory days 
they’ll pass you by
Glory days”

Bruce Springsteen

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