u/Upbeat-Opinion6482

I’ve been practicing calisthenics for ~1.5 years, and I’ve had this since I was around 10, long before starting calistenics or any other sport. It has grown a bit since I started training, but I’ve only ever seen something similar on one other person in the calisthenics community, plus one guitarist.

This “thing” becomes very prominent when I:

flex both forearms

pull my fingers toward my wrist

fully flex all four fingers → biggest peak

do it with only my ring finger → still visible, but smaller

I’m curious about what this actually is anatomically. Is it a muscle, tendon, or something else? Is this a normal anatomical variation?

Any anatomy/calistenics nerds know what I’m looking at?

What do you mean decreasing total views prediction 🤣

Using f1-5 and arrows, somehow works fine but the space in "f4.5" is not rly enjoyable

Added colores led not to look homeless