Not all gym machines are created equal. In fact, some of them do more harm than good—including the hamstring curl machine. In many cases, machines lock your body into fixed positions that don’t ...

When you think about strengthening the hamstrings, the usual suspects of RDLs and machine curls probably come to mind.

This week's workout comes from Bev Francis of East Coast Mecca/Powerhouse Gym. She demonstrates a machine at the gym that works your hamstring muscles.