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 ...

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 ...

Here’s why your obsession with stretching is actually keeping you tight and how to finally find relief. If your hamstrings ...

Your glutes and hamstrings aren’t just for looks—they’re the powerhouse behind walking, running, lifting, and protecting your back. Weakness or imbalance here can lead to tightness, pain, and higher ...

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 ...

Adaptations in the hamstring muscle-tendon unit following a 9-week eccentric training program. The results demonstrate that while training allows muscle fibers to operate over significantly longer ...