Quadriceps

anatomy

The anterior quadriceps, commonly called the quads, are a group of four muscles on the front of the thigh responsible for extending the knee and supporting hip flexion. Understa...

Fitness

Quad extensions at home are typically a conceptual or alternative movement pattern, since the classic seated quadriceps extension requires a dedicated weight machine found in gy...

anatomy_kinesiology

The muscle that extends the knee and flexes the thigh is the rectus femoris, one of the four quadriceps muscles. It crosses both the hip and knee joints, allowing it to perform...

Health & Fitness

The primary muscle responsible for straightening the knee is the quadriceps femoris, a four-part group on the front of the thigh. Other structures stabilize the joint during mot...