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The Hip Joint and Pelvic Girdle
Anatomy and Kinesiology
420:024
Objectives
Bones, bony landmarks and joints Muscles Movements
Hip Joint Hip joint (femur and acetabulum of pelvis)
Relatively stable due to: Bony architecture Strong ligaments Large supportive muscles
Hip joint and pelvic girdle work together much like shoulder joint and girdle Pelvis moves in response to trunk and/or thigh movement
Other bones to consider Tibia Fibula Patella
Pelvic Girdle Pelvic girdle Pelvic bones, sacrum, coccyx Pelvic bones:
Each pelvic bone is made up of three fused bones ilium, ischium, & pubis
Right & left pelvic bone joined together posteriorly by sacrum
Sacrum: Extends from spinal column with 5 fused vertebrae
Coccyx: Extends posteriorly from sacrum with 3 fused vertebrae
Lateral femoral epicondyle Medial femoral
epicondyle
Patella
Tibial tuberosity
Head of fibula
Lateral tibial condyle
Medial tibial condyle
Joints Hip joint
AKA Acetabular femoral joint Diarthrodial multiaxial ball and socket Movements Planes and axes
Joints
Pubic symphisis Amphiarthrodial cartilagenous joint Slightly moveable
Joints
Sacroiliac joints Diarthrodial gliding joints Slightly moveable
Objectives
Bones, bony landmarks and joints Muscles Movements
Muscles
Anterior: Iliopsoas Sartorius Rectus femoris Tensor fasciae latae
Posterior: Gluteus maximus Biceps femoris Semitendonosus Semimembranosus Deep 6 external rotators
Lateral: Gluteus medius Gluteus minimus
Medial: Adductor brevis Adductor longus Adductor magnus Gracilis Pectineus
Iliopsoas
Sartorius
Rectus Femoris
Tensor Fasciae Latae
Muscles
Anterior: Iliopsoas Sartorius Rectus femoris Tensor fasciae latae
Posterior: Gluteus maximus Biceps femoris Semitendonosus Semimembranosus Deep 6 external rotators
Lateral: Gluteus medius Gluteus minimus
Medial: Adductor brevis Adductor longus Adductor magnus Gracilis Pectineus
Gluteus Maximus
Semitendinosus
Semimembranosus
Biceps Femoris
Six Deep External Rotators
Muscles
Anterior: Iliopsoas Sartorius Rectus femoris Tensor fasciae latae
Posterior: Gluteus maximus Biceps femoris Semitendonosus Semimembranosus Deep 6 external rotators
Lateral: Gluteus medius Gluteus minimus
Medial: Adductor brevis Adductor longus Adductor magnus Gracilis Pectineus
Gluteus Medius
Gluteus Minimus
Muscles
Anterior: Iliopsoas Sartorius Rectus femoris Tensor fasciae latae
Posterior: Gluteus maximus Biceps femoris Semitendonosus Semimembranosus Deep 6 external rotators
Lateral: Gluteus medius Gluteus minimus
Medial: Adductor brevis Adductor longus Adductor magnus Gracilis Pectineus
Adductor Brevis
Adductor Longus
Adductor Magnus
Pectineus
Gracilis
Objectives
Bones, bony landmarks and joints Muscles Movements
Movements
Flexion Movement of femur straight
anteriorly Extension
Movement of femur straight posteriorly
Movements Abduction
Movement of femur laterally to side away from midline
Adduction Movement of femur
medially toward midline
Movements
Horizontal adduction Movement of femur in a horizontal or transverse
plane toward the midline Horizontal abduction
Movement of femur in a horizontal or transverse plane away from the midline
Movements
External rotation Movement of femur laterally
around its long axis away from midline
Internal rotation Movement of femur medially
around its long axis toward midline
Movements
Diagonal abduction Movement of femur in a
diagonal plane away from midline of body
Diagonal adduction Movement of femur in a
diagonal plane toward midline of body
Movements
Anterior pelvic tilt Anterior movement of upper
pelvis; iliac crest tilts forward in a sagittal plane
Posterior pelvic tilt Posterior movement of upper
pelvis; iliac crest tilts backward in a sagittal plane
Movements Left lateral pelvic tilt
Left pelvis moves inferiorly in relation to right pelvis in frontal plane
Right lateral pelvic tilt Right pelvis moves inferiorly in
relation to left pelvis in frontal plane
Movements
Left transverse pelvic tilt Left pelvis moves
posteriorly in relation to the right in transverse plane
Right transverse pelvic tilt Right pelvis moves
posteriorly in relation to the left in transverse plane
LINE OF PULL
FLEXION
Superior movement of the femur in the sagittal plane
FLEXION
FLEXION
Iliopsoas Rectus femoris Sartorius Tensor fasciae latae Pectineus
EXTENSION
Inferior movement of the femur in the sagittal plane
EXTENSION
EXTENSION
Gluteus maximus Hamstrings
Biceps femoris Semitendinosus Semimembranosus
ABDUCTION Superolateral movement of the femur in the
frontal plane
Gluteus minimus
ABDUCTION
ABDUCTION
Tensor fasciae latae Gluteus medius Gluteus minimus
ADDUCTION Inferomedial movement of the femur in the
frontal plane
ADDUCTION
ADDUCTION
Gracilis Adductor magnus Adductor longus Adductor brevis Pectineus
HORIZONTAL ABDUCTION Movement of the femur away from the midline
of the body in the transverse plane Muscles Abductors
HORIZONTAL ADDUCTION Movement of the femur towards the midline in
the transverse plane Muscles Adductors
INTERNAL/EXTERNAL ROTATION
Movement of the femur towards/away the midline in the transverse plane along its long axis