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 ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Nordic curls are a bit of a gymgoer’s party trick. As you lower the backside of your body backwards ...

You can do a hamstring curl with or without gym equipment. Some variations involve standing, sitting on a chair, or lying face-down on the floor. These muscles function together to bend your knee and ...

Alternative name: Lying leg curls. Lie face down on a lying-leg-curl machine with your legs fully extended. The pads should rest on the back of your ankles. Grip onto the handholds. Bend your knees, ...