Machines definitely get a bad rap at the gym, but when used correctly, they can help you improve your overall fitness levels and strength. One machine that's great for increasing your lower-body ...

Squats train all the major muscles in your legs, including quads and hamstrings. Walking lunges challenge your leg muscles and improve your stability and coordination. The leg press machine targets ...

Position yourself under the Smith machine bar and brace your core. Lower slowly, keeping your torso upright. Aim for a knee bend of 90 to 100 degrees, or deeper if possible. Push through your heels to ...

Besides clocking a few miles here and there on the treadmill, the gym may not be the first place that comes to mind when you think about reaching your PR. But it does, in fact, offer some unique ...

Let’s talk legs: They contain some of the most powerful muscles in the body (including those large muscles in your caboose called the glutes) and keeping them strong and limber is crucial for helping ...

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. Ready for leg day?