Thigh and Knee Flashcards
optimal muscle tension at
optimal sarcomere length
2 joint muscle acting at both joints at the same time ROM decreased, lengthened
passive insufficiency
2 joint muscle acting at both joints at the same time ROM decreased, simultaneously shortened
active insufficiency
rupture locations (3)
muscle belly, tendon, musculotendinous junction
Major hip extensor
gluteus maximus
Major hip abductor
gluteus medius
Muscles that assist hip abduction (2)
gluteus minimus and TFL
TFL
tensor fascia latae
hip action required to stabilise pelvis in swing phase (prevents foot dragging)
abduction
contraction of hip abductors when standing on one leg (2)
isometrically and ecentrically
Lateral hip rotators (6)
piriformis, superior gemellus, obturator internus, inferior gemellus, quadratus femoris
Major medial hip rotators (2)
gluteus medius and minimus
assisting hip medial rotators (3)
TFL, semitendinosus, semimembranosus
Is medial or lateral hip rotation stronger
lateral
what occurs in gait phase to accomodate pelvic rotation
medial and lateral rotation
Muscle that unlocks the knee
popliteus
bone movement in knee unlocking
tibia medial rotation, femur lateral rotation
Knee flexor prime movers
hamstrings x3
muscles assisting knee flexion (4)
gracilis, sartorius, popliteus, gastrocnemius
Knee extensors
quadriceps femoris
quadricep that passes over knee and hip
rectus femoris
muscle for patella stabilisation
vastus medialis
knee flexion synergist
iliopsoas
knee extension synergist
gluteus maximus
medial leg rotators (3)
semimembranosus, semitendinosus, popliteus
medial leg assistant rotators (2)
sartorius and gracilis
lateral leg rotator
biceps femoris
lateral leg assistant rotator
TFL
