Ever since July I've been weight training... i'm 15 btw. Basically, ever since then my legs have been a lot stiffer then they used to. I used to be almost able to do splits, and now i can barely even spread them apart to the point where i can place my elbows on the ground. This leg stiffening has affected my muashi-giri (round house kick) in shotokan karate; i cant lift it up as high, cuz when i do, it feels real stiff. My butterfly stretch has become real stiff to, my legs can barely move down to even stretch. My weight training has been done under my dads supervision, and he hasnt complained about my form or anything, so i dont really know what the problem is. If any1 can shed some light on this issue (what muscle has stiffened, how can i regain the flexibility) that would be great.
To add, no other body part has become stiff from weight training... its just the halmstrings and the muscles in the legs that are stretched while doing the butterfly stretch.
To add, no other body part has become stiff from weight training... its just the halmstrings and the muscles in the legs that are stretched while doing the butterfly stretch.