| 1. | The rectus femoris, a large muscle in the quadriceps, is typical.
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| 2. | During incline running increases in activation of the rectus femoris and gastrocnemius were noted by Cai.
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| 3. | However, the rectus femoris moment arm is greater over the knee than the hamstring knee moment.
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| 4. | This means that contraction from both rectus femoris and hamstrings will result in hip and knee extension.
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| 5. | In January 2013 he was injured in rectus femoris muscle and missed the rest of the season.
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| 6. | The rectus femoris is a direct antagonist to the hamstrings, at the hip and at the knee.
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| 7. | The rectus femoris biarticular muscle acting over the hip has a smaller hip moment arm than the hamstrings.
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| 8. | Rectus femoris can be torn which can be extremely painful and potentially debilitating if there is a complete rupture.
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| 9. | Hip extension also adds a passive stretch component to rectus femoris, which results in a knee extension force.
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| 10. | The anterior side of the hip exhibits primarily hip flexion with help from the rectus femoris, iliopsoas, pectineus, and gracilis.
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