I've just participated a boxing class.

But sometime I've got spontaneous erection during workouts, especially before a sparring in the ring.

This's not associated with sexual stimulation.



Is this normal event for boxer?

I sometime noticed that some boxers liked to touch their crotch with boxing gloves on. I think they might arranging their boners position?



I've searched for physiological reasons

found that boxing can be non-sexual stimulation for erection in boys

or it may associate with coregasm

Does anyone have the same experience?