The hamstring muscles are responsible for your hip and knee movements in walking, squatting, bending your knees, and tilting your pelvis. Hamstring muscle injuries are the most common sports injury.

A number of Premier League players – including Arsenal’s Kai Havertz and Chelsea’s Nicolas Jackson (above) – have suffered hamstring injuries in recent weeks. With the help of Matt Konopinski, ...

Symptoms of tight hamstrings can include stiffness and limited mobility. People may also notice cramping, pain, swelling, and bruising. They are usually the result of exercise or other intense forms ...

Hamstring injuries mostly occur during activities like sprinting and soccer. People aged 16-25 are more likely to injure their hamstrings due to varying growth rates of muscles and bones. Applying ice ...

The hamstring is a group of three muscles that run up the back of your thigh. Sports that involve a lot of sprinting or stop-and-start movement, like soccer and tennis, may cause tightness in your ...

The three large muscles at the back of your thigh are known as the hamstrings. They join the hip joint to the knee joint. You’ll use your hamstrings a lot in any activity that requires you to bend ...

Hamstring strains are one of the most common—and frustrating—soft-tissue injuries suffered by athletes. There are two main types: an acute strain and a proximal hamstring tendinopathy, a ...

Your hamstring is a group of three muscles along the back of your thigh. These muscles help you bend your knee and straighten and rotate your leg. If the muscle fibers or tendons that connect your ...

Dana Santas, known as the “Mobility Maker,” is a certified strength and conditioning specialist and mind-body coach in professional sports. She is also the author of “Practical Solutions for Back Pain ...

Tight hamstrings can feel like a stiffness or lack of mobility in the back of your thigh. Running and lifting weights can cause hamstring injuries so it's important to stretch before. Massage 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 ...

Most runners have probably had an achy, tight hamstring at one time or another. The repetitive motion of running can cause the muscles located at the back of the upper thigh to feel sore, especially ...