I really tweaked my left knee bad one summer .
Thanks to Dr. Nancy Gibbs , she gave me some leg raises that built up the front muscle groups that were greatly unbalanced with the back ones - common among people who only run .
I really tweaked my left knee bad one summer and thanks to Dr. Nancy Gibbs , she gave me some leg raises that built up the front muscle groups that were greatly unbalanced with the back ones - common among people who only run .