Add Yahoo as a preferred source to see more of our stories on Google. Continue reading to learn why you need a hamstring workout and which key exercises you need to do to build strong, resilient legs.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Do you ever wake up with tight, stiff legs and wonder why? Or maybe, during yoga class, you find it ...

Any time you walk, climb stairs, or even sit down in a chair, you're activating your hamstring muscles. Therefore, keeping those muscles strong is important for basic, daily mobility. But that's not ...

That makes it a useful place to train when your legs need strength work, but your confidence or stability could use a little ...

The hamstrings tend to get a lot of love during a stretch routine (who doesn’t have tight hammies?). When it comes to strength training, though, the quads and calves steal most of the spotlight — ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. For strong, powerful ...

"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 ...

Many great exercises work the hamstrings. But if you spend time training one muscle group, you want to do only the best exercises, right? A recent study conducted at the University of Memphis looked ...

A small resistance band can make a major difference when rebuilding lower-body strength. Fitness experts say the mini-band ...

Plus, trainer-backed tips to get your butt in gear safely.

Unfortunately, hamstring strains are both common and painful. They strike athletes of all sorts – including runners, skaters, and football, soccer, and basketball players. But what is a hamstring? It ...