📚The hamstrings are a group of three muscles located at the back of the thigh, responsible for knee flexion and hip extension. 

🔎The medial hamstrings include the semitendinosus and semimembranosus, which run along the inner portion of the thigh. These muscles originate from the ischial tuberosity of the pelvis and insert on the tibia, contributing to knee flexion, internal rotation of the leg, and hip extension.

🧠The biceps femoris, the lateral hamstring muscle, has two heads: a long head that originates from the ischial tuberosity and a short head that originates from the femur. Both heads insert on the fibula, making this muscle unique from the medial hamstrings. The biceps femoris is primarily responsible for knee flexion and external rotation of the leg, with the long head also contributing to hip extension.

✅Strengthening both the medial and lateral hamstrings is crucial for knee stability and overall lower-body function. In the hip and knee sections here in the app, you will find a hamstring rehab program.