The document discusses the anatomy and biomechanics of the pelvis and hip. It describes muscles like the transverse abdominis, iliopsoas, and external hip rotators. It also covers common injuries to the pelvis like tendinitis, bursitis, and sciatica. The sciatic nerve is defined as the longest single nerve in the body. Total hip replacement surgery is briefly mentioned.
3. Transverse Abdominis
Origin
Iliac crest, inguinal
ligament, thoracolumbar fascia, and
costal cartilages 7-12
Insertion
Xiphoid process, linea alba, pubic
crest via an aponeurosis
Location
Deep
Movements
Compress the ribs and
viscera, providing thoracic and
pelvic stability
4. +
Pelvis and Hip Motions
Pelvic rotation Lumbar spine motion Right hip motion Left hip motion
Anterior rotation/tilt Extension Flexion Flexion
Posterior rotation/tilt Flexion Extension Extension
Right lateral tilt Left lateral flexion Abduction Adduction
Left lateral tilt Right lateral flexion Adduction Abduction
Right transverse
rotation
Left lateral rotation Posterior rotation Anterior rotation
Left transverse
rotation
Right lateral rotation Anterior rotation Posteriorl rotation
10. +
Iliopsoas – What is it comprised of?
When stabilized
Flexion of hip
Thigh fixed
Flexion of trunk
More active in mid-range
Leg raise or curl-up
Increased activity- feet held (curl-up)
11. Psoas Major
Origin
Transverse process of L1-5
Insertion
Lesser trochanter of femur
Location
Anterior/Medial
Movements
Pelvis: Anterior tilt
Hip: Flexion
20. +
Common Injuries of the Pelvis
Tendinitis
Bursitis
Sciatica
Labral tear
Dislocation
Fracture
Osteoporosis
Total hip replacement
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21. +
Sciatic Nerve
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It is the longest and widest single nerve in the body, going
from the sacrum to the foot on the posterior aspect
Lubosacral plexus L4-S5
22. +
Sciatica
Pain, tingling, or numbness produced by an
irritation of the nerve roots that lead to the sciatic
nerve
Causes
The most common cause of sciatica is a bulging or
ruptured disc, pressing against the nerve roots
It can also be a symptom of other conditions such as
stenosis, bone spurs, arthritis or nerve root compression
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23. +Avg time to diagnose = 2 yr
Can lead to arthritis
May cause contralateral
disfunction of knee, hip, low
back
22% of athletes w/ groin pain
and 55% of those mechanical
hip pain of unknown eiteology
Functions: Deepens the
acetabulum
Increases surface area and
distributes mechanical and
compressive force over a
greater area. Reduces
compressive forces by 92%
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