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 ...

Ah, hamstrings: the middle child of muscle groups. While they might not be the sexiest parts of our bodies, strong hamstrings play a vital role in our overall strength and stability. To learn more ...

If you're walking, standing up from the couch or bending down to pick something up, you are using your hamstrings. The muscles, which run down the back of the leg from the hip to the knee, are ...

Natalia Perez-Segnini is a NASM-certified personal trainer, a yoga instructor, a breathwork practitioner and a trauma-informed specialist. As a head coach at Tone House—a premier athletic-based ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." THE LEG CURL is one of the best machines—and best methods, period—for building hamstring strength and ...