rectus femoris การใช้

• The rectus femoris, a large muscle in the quadriceps, is typical.
• During incline running increases in activation of the rectus femoris and gastrocnemius were noted by Cai.
• However, the rectus femoris moment arm is greater over the knee than the hamstring knee moment.
• This means that contraction from both rectus femoris and hamstrings will result in hip and knee extension.
• In January 2013 he was injured in rectus femoris muscle and missed the rest of the season.
• The rectus femoris is a direct antagonist to the hamstrings, at the hip and at the knee.
• The rectus femoris biarticular muscle acting over the hip has a smaller hip moment arm than the hamstrings.
• Rectus femoris can be torn which can be extremely painful and potentially debilitating if there is a complete rupture.
• Hip extension also adds a passive stretch component to rectus femoris, which results in a knee extension force.
• The anterior side of the hip exhibits primarily hip flexion with help from the rectus femoris, iliopsoas, pectineus, and gracilis.
• The rectus femoris is situated in the middle of the front of the thigh; it is extend the leg at the knee joint.
• Similarly, the rectus femoris is not dominant in knee extension when the hip is flexed since it is already shortened and thus suffers from active insufficiency.
• In essence : the action of extending the knee from a seated position is primarily driven by the vastus intermedius, and less by the rectus femoris.
• The anterior thigh muscles form the rectus femoris arises from the anterior inferior iliac spine and is thus the only of the four acting on two joints.
• Together with the rectus femoris muscle the vastus muscles form the quadriceps femoris muscle, a large fleshy mass which covers the front and sides of the femur.
• Anterior compartment muscles of the thigh include pectineus, sartorius, and the four muscles that comprise the quadriceps muscles-rectus femoris, vastus medialis, vastus intermedius and vastus lateralis.
• The anterior compartment of thigh contains the sartorius muscle and the four quadriceps : the rectus femoris, vastus lateralis, vastus intermedius and vastus medialis, along with the articularis genus.
• The hamstrings, adductor magnus and gluteus maximus work concentrically in the legs, while the psoas major, iliacus, and rectus femoris work eccentrically keeping the hip in neutral extension.
• Results showed significant increases in activation of tibialis anterior, gastrocnemius, soleus, rectus femoris, vastus lateralis, medial hamstring, biceps femoris, and gluteus maximus before foot strike.
• Due to being the deeper middle-most of the rectus femoris can, nor is it accessible to manipulate with massage therapy to stretch the fibres sideways as the vastus lateralis and vastus medialis are.