 [ Symptoms ] left thigh leg pain from roller derby when i first started roller derby i had back pain when we did our laps the back pain had gone away after a couple weeks i noticed not long after the back pain seemed to subside that my left thigh has this intense dull achey burning sensation and feels like it will give out on me at times it is only my left leg and it only happens during laps if i stand straight and skate around my leg is fine is this an issue from the back pain and it is just going down my leg now would a back brace work [ Disease ] i just wanted to add that i did not get injured in any way that would have caused this we have to stand in derby stance which is basically a squat position and do crossovers it seems the crossovers are what really hurt my leg i am guessing with all the weight mainly on the left side if i go the other direction it is only the left leg that still hurts not the right i have asked other girls about it and noone has any idea i could not even find anything on google thanks for any input