Muscular Function of the Hip

Question 1

Muscles involved in hip flexion?

Answer 1

TFL
Iliopsoas
Rectus Femoris
Sartorius - Pectineus

Question 2

Muscles involved in hip extension?

Answer 2

Glute Max
Hamstrings

Question 3

Muscles involved in hip adduction?

Answer 3

Adductor Magnus- Longus-Brevis
Pectinues, Gracilis

Question 4

Muscles involved in hip abduction?

Answer 4

Glut Med - Min

Question 5

Muscles involved in Internal Rotation?

Answer 5

Glut Min
TFL

Question 6

Muscles involved in hip Internal Rotation?

Answer 6

Glut Min
TFL

Question 7

Muscles involved in hip External Rotation?

Answer 7

Piriformis
Obturator Internus / Ext
Gemelli ; Quadratus Femoris

Question 8

Thigh Prime Movers : Extension

Answer 8

Rectus Femoris;
Vastus Medialis - Lateralis - Intermedius

Question 9

Thigh Prime Movers: Flexion

Answer 9

Semimembranosus
Semitendinosus
Biceps Femoris

Question 10

Femoral innervates?

Answer 10

Knee Extensors

Question 11

Obturator innervates?

Answer 11

Hip Adductors

Question 12

Sciatic innervates?

Answer 12

Knee Flexors and some hip ERs

Question 13

Active- Passive Muscle Insufficiency

Answer 13

The limited ability of a two joint muscle to produce force (active maximal measurable tension) when joint position places the muscle on a stretch or it has maximally shortened at its end range.

Question 14

Example of active insufficiency

Answer 14

Hip flexion with knee extension: rectus is actively over shortened and hamstrings are passively stretched.

Question 15

Example of active insufficiency

Answer 15

Hip extension with knee flexion: hamstrings are actively over shortened and rectus is passively stretched.

Question 16

What is passive insufficiency?

Answer 16

Biarticular antagonist maximal elongation prohibits agonist from further active movement.

Question 17

Examples of passive insufficiency

Answer 17

rectus femoris tension
hamstring tension