functions

The muscles that compose the hamstrings – the semimembranosus, the semitendinosus, and the biceps femoris, plus a host of synergists – have two functions: bending the knee and kicking the leg back (as in a sprinting motion). Problem is, the average lifter only trains one of these functions...

EZ Bar vs Straight Bar Curl Before determining which exercise is better, we have to understand what the biceps do. The biceps have 2 main functions. The one most people remember and acknowledge is the flexing/pulling of the forearm. But the other function of the biceps is to help supinate the...