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LE Actions

Anatomy

QuestionAnswer
Iliopsoas flex thigh at hip
Vastus Intermedius Extend knee
Vastus Medialis Extend knee
Vastus Lateralis Extend knee
Rectus Femoris Extend knee, help flex hip
Sartorius flex knee; hip flexion, abduction, lateral rotation
Obturator externus Laterally rotate hip/ thigh
Pectineus Adduct and flex hip/ thigh
Gracilis Adduct hip, flex knee
Adductor Longus Adduct hip and medially rotate thigh
Adductor Brevis Adduct hip and medially rotate thigh
Adductor Magnus (adductor part) adduct hip; adductor part also flexes thigh
Tensor Fasciae Latae Abduct & medially rotate thigh; stabilize knee in extension
Gluteus Maximus Extend hip, laterally stabilize hip and knee, laterally rotate/ abduct thigh
Gluteus Medius Abduct & medially rotate thigh; stabilize knee in extension; stabilize pelvis during stance
Gluteus Minimus Abduct & medially rotate thigh; stabilize knee in extension; stabilize pelvis during stance
Piriformis laterally rotate hip & extend femur
Superior gemellus laterally rotate hip & extend femur
Obturator internus laterally rotate hip & extend femur
Inferior gemellus laterally rotate hip & extend femur
Quadratus femoris Lateral rotation only (of thigh)
Adductor Magnus (hamstring part) Extends thigh
Semimembranosis Extend hip, flex knee, rotate it medially
Semitendinosus Extend hip, flex knee, rotate it medially
Biceps Femoris extend hip, flex knee & rotate it laterally
Created by: Abarnard