I have been having a chronic cramping problem in my quadricep. I am a 400m runnner.
It is VERY local in the upper rectus femoris. Whenever my stride seems to deviate somewhat laterally the entire muscle tenses up and remains that way for over a week or so. The rest of it is normal as I said it is very local in a certain area. It is almost rock solid muscle tissue.
I currently am taking a multi vitamin with iron. Calcium Magnesium with Zinc, Vitamin D, and halibut liver oil tablets daily.
I would assume it may be a nutritional problem because it is a come and go sorta thing.
Lack of Potassium perhaps?
Thanks in Advance.