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Functional Activity: Kicking a Ball

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Functional activity: Kicking with R leg

Right leg:

Hip joint (acetabulum of pelvis and femur): During kicking the femur performs flexion (long lever) in sagittal plane, adduction (short level) in frontal plane and external rotation (short level) in transverse plane. The head of the femur moves inferiorly and laterally. Muscles involved: Psoas and quadriceps femoris work concentrically as agonist to flex the femur in sagittal plane, while hamstrings and gluteal muscles elongate and work eccentrically as antagonist muscles. Vastus medialis and adductors work concentrically as agonist to adduct the hip while Iliotibial band and Tensor Fascia Lata elongate in the frontal plane. The three ligaments of the hip: illiofemoral, pubofemoral and ischiofemoral ligaments tense and work together to stabilize the joint.

Knee: The femur meets the tibia to form the main knee joint. The patella joints the femur form the patellofemoral joint. The movement during kicking is knee extension, which is a short lever movement in sagittal plane. In this movement the patella will move superiorly on the femur. Muscles involved: Quadriceps femoris contracts concentrically to extend the knee and hamstrings elongate and work eccentrically to maintain the knee in extension. Ligaments: Anterior cruciate, Posterior cruciate ligament and Medial and Collateral ligament work together to maintain knee stability.

Ankle: The Talocrural joint goes into Dorsiflexion in sagittal plane. Short level. Muscles involved: Anterior tibialis, which contracts concentrically and gastrocnemius complex which stretch along with Achilles tendon. Subtalar joint performs Inversion, which is a short level movement in frontal plane. Main muscle: Posterior tibialis. Ligaments of ankle: Achilles tendon, anterior talofibular ligament, posterior talofibular ligament, calcaneofibular

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