While deadlifting this morning (conventional, not stiff leg), my hamstring "popped" about halfway up from the floor. I was focusing on ham and glute engagement; good form; etc. And watching in the mirror, so I know my form was good. It hurt, but not a lot. Deadlifts were my first exercise; this was around 10:45. I put the weight down without completing the movement; waited a few minutes; took 50 lbs off the bar and gave a "test pull". I probably could have gotten it up, but it seemed like a really dumb idea, so that ended deadlifts for the day.

I did a little gentle stretching as I finished my back workout to sort of test things out, and was able to get pretty good range of motion and no sharp pains, though it did (and does) hurt some.

I also did bent over barbell rows after this happened - very carefully - and was able to do those without causing any kind of major pain in the hamstring (wasn't sure I'd be able to).

I have no lumps or bumps; no bruising (it's now about 2-1/2 hours later). It does ache - but no sharp pain.

So... WTF happened? I don't think I tore it, though that was the first thing that came to mind. Maybe a partial tear? A long time ago - like 30 years - I got a hernia lifting a heavy wall while building a house and it was a similar "pop" without much noticable pain. Pretty much a non event. Likewise, I ruptured a tendon in my thumb about 6 or 7 years ago and it was a similar thi g: a "pop" and sone discomfort, but I didn't know anything serious had happened. That ended up requiring surgery.

This is right in the middle of the muscle, not at an insertion point.

Any guesses?

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