THE LEG CURL is one of the best machines—and best methods, period—for building hamstring strength and size. There are two types of hamstring curl machines, and you're likely to find one or the other ...

In most workout splits, one to two dedicated leg days per week is common, but it really all depends on your fitness level and ...

Back pain can make you nervous about tying your shoes, let alone working out. However, while resting a painful back may help for a time, often getting back in the gym and moving makes it feel better, ...

Jakob Roze, CSCS, is a health writer and high-end personal trainer. He is the founder and CEO of RozeFit, a high-end concierge personal training practice and online blog. Squats train all the major ...

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. It’s easy to almost ...

Shorts season is upon us, which means you’re running out of time to make it look like you’ve been paying as much attention to your legs as you have your biceps. Lucky for you, it’s not too late.