The quads are one of the most important muscle groups in your body. Not only do they help extend your knee, but they also ...

Rectus femoris Vastus lateralis Opposing muscles called 'extensors ... it is being dismantled by an army of trainers demonstrating it to be not only safe, but also essential, to strengthen the knee, ...

There are several risk factors that contribute to this disease. Objective Rectus femoris and iliopsoas contracture is a specific risk factor for the development of OSD in high performance youth ...