Bicycle crunch. Analyze the left leg. Movement procedes from A: beginning to bring the left leg to the opposite elbow to B: completing the motion by touching the left knee to the right elbow. The hip flexing using iliopsoas as a prime mover. The knee flexing using bicep femoris as a prime mover. The Trunk using as a prime mover.
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A prime mover of thigh flexion is the (a) rectus femoris, (b) iliopsoas, (c) vastus muscles, (d) gluteus maximus.
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when sitting, cross your legs. what movement is this and what muscle is the prime mover?
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8c. rectus femoris – add it to the figure above AND to your 3D skeleton! ORIGIN INSERTION PREDICTED ACTION Does this muscle EXTEND THE HIP or FLEX THE HIP? (Choose one.) ACTUAL ACTION Does this muscle EXTEND THE HIP or FLEX THE HIP? (Choose one.) PALPATION Can you feel this muscle when it contracts? [ YES / NO ] 8d. semimembranosus – add it to the figure above AND to your 3D skeleton! ORIGIN INSERTION PREDICTED ACTION Does this muscle EXTEND THE HIP or FLEX THE HIP? (Choose one.) ACTUAL ACTION Does this muscle EXTEND THE HIP or FLEX THE HIP? (Choose one.) PALPATION Can you feel this muscle when it contracts? [ YES / NO ] 8e. semitendinosus – add it to the figure above AND to your 3D skeleton! ORIGIN INSERTION PREDICTED ACTION Does this muscle EXTEND THE HIP or FLEX THE HIP? (Choose one.) ACTUAL ACTION Does this muscle EXTEND THE HIP or FLEX THE HIP? (Choose one.) PALPATION Can you feel this muscle when it contracts? [ YES / NO ]
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