The quadriceps femoris, often simply called the quads, is the formidable muscle group spanning the front of your thigh. Vastus Intermedius: Lying deep to the rectus femoris, this muscle contributes significantly to the overall force production of the quadriceps.
How the Quadriceps Act During Athletic Performance
Unlike the other three, it crosses the hip joint, giving it the ability to flex the hip as well as extend the knee. Vastus Lateralis: Located on the outer side of the thigh, this is the largest of the four muscles.
During a heavy lift, the quadriceps act as the primary agonists. In everyday life, the action of this muscle group is evident in the eccentric phase of movements.
How Quadriceps Action Powers Athletic Performance
Anatomy of the Quadriceps Femoris To understand the action of the quadriceps femoris, you must first look at its unique structure. Secondary Actions and Functional Roles While knee extension is the main event, the action of the quadriceps femoris varies slightly depending on which head is most engaged and the position of the hip.
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More perspective on What is the action of the quadriceps femoris can make the topic easier to follow by connecting earlier points with a few simple takeaways.
