Don't let a time crunch stop you from getting in a great workout. If you're short on time and in need of something that will have you feeling like a badass, you've got to try this quick TRX workout.

"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 ...

Looking to seriously strengthen your hamstrings? Give sliding leg curls a go. Celebrity trainer Don Saladino, cofounder of NYC-based Drive495 gym—whose clients have included Blake Lively, Ryan ...

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 ...

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 ...