322_Ch9

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Author:
itzlinds
ID:
248322
Filename:
322_Ch9
Updated:
2013-11-27 12:49:01
Tags:
hip complex
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Description:
the hip complex
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  1. how is the hip/pelvic girdle relationship similar to the shoulder joint/shoulder girdle:
    • connection of the extremitites to the trunk
    • attachment of extremeitites to the axial skeleton
    • anatomical design: ball and socket; mobility; motion in 3 planes
  2. how is the hip/pelvic girdle relationship different from the shoulder joint/should girdle:
    • pelvic girdle moves only as a unit (compared to the shoulder; the scapula can move independenly as L or R)
    • the depth of the acetabulum limits movement (the glenoid fossa (shoulder) is longer and a little more open)
    • the pelvic girdle depends on lumbar joints & hip for movements (the shoulder girdle is not depenedent of on shoulder joint or the spine)
  3. what does the diffences of the hip/pelvic girdle from the shoulder joint/girdle mean for the hip complex as a whole:

    why is this important:
    MORE STABILITY

    • why is stability of greater importance than mobility
    • static conditions: upright posture, WB (stationary)
    • dynamic conditions: (walking/running) momentum, floor gives equal/opposite ground rxn force, more force!
  4. What is the muscle action at the hips in landing from a vertical jump?

    A. Concentric action of the hamstrings
    B. Eccentric action of the hamstrings
    C. Eccentric action of the rectus femoris and iliopsoas
    D. Concentric action of the rectus femoris and iliopsoas
    B. eccentric action of the hamstrings
    (this multiple choice question has been scrambled)
  5. Which of the following muscles adducts the hip?

    A. Gluteus medius
    B. Gracilis
    C. Rectus femoris
    D. Biceps femoris
    B. gracilis
    (this multiple choice question has been scrambled)
  6. Which muscles act to abduct the leg at the hips in performing a jumping jack?

    A. Gluteus minimus, Rectus femoris
    B. Adductor longus, Gluteus medius, Rectus femoris
    C. Adductor longus, Gluteus minimus
    D. Gluteus medius, Gluteus minimus
    D. gluteus medius, gluteus minimus
    (this multiple choice question has been scrambled)
  7. In which of the following would the gluteus maximus most likely be active?

    A. Upright standing
    B. Walking
    C. Running
    D. Kicking
    C. running
    (this multiple choice question has been scrambled)
  8. Which of the following hip actions is produced by the iliopsoas muscle?

    A. Abduction
    B. Flexion
    C. Extension
    D. Adduction
    B. flexion
    (this multiple choice question has been scrambled)
  9. Match the accompanying hip or lumbar spine movement with the listed motion of the pelvis.

    Left lateral tilt:

    A. Left hip extension
    B. right hip external rotation
    C. lumbar extension
    D. L rotation of the spine
    E. lift hip abduction
    E. lift hip abduction
    (this multiple choice question has been scrambled)
  10. Match the accompanying hip or lumbar spine movement with the listed motion of the pelvis.

    right rotation:

    A. left hip internal rotation
    B. lift hip abduction
    C. left lateral flexion
    D. right hip internal rotation
    E. right lumbar rotation
    D. right hip internal rotation
    (this multiple choice question has been scrambled)
  11. Match the accompanying hip or lumbar spine movement with the listed motion of the pelvis.

    anterior tilt:

    A. lumbar flexion
    B. lumbar extension
    C. left hip abduction
    D. right hip external rotation
    E. left hip extension
    B. lumbar extension
    (this multiple choice question has been scrambled)
  12. Match the accompanying hip or lumbar spine movement with the listed motion of the pelvis.

    right lateral tilt:

    A. right lateral flexion
    B. left lateral flexion
    C. lumbar flexion
    D. right hip adduction
    E. right hip external rotation
    B. left lateral flexion
    (this multiple choice question has been scrambled)
  13. Match the accompanying hip or lumbar spine movement with the listed motion of the pelvis.

    left rotation:

    A. left lateral flexion
    B. right lumbar rotation
    C. right lateral flexion
    D. right internal rotation
    E. left hip external rotation
    B. right lumbar rotation
    (this multiple choice question has been scrambled)
  14. provide the vector analysis of a closed chain squat for the glute max:

    point of attachment:
    location of the line of pull:
    direction of the line of pull:
    torque glute max produeces:
    • point of attachment: proximal
    • location of the line of pull: posterior
    • direction of the line of pull: inferior
    • torque: extension (muscles will always produce the same torque)
  15. provide the vector analysis of a closed chain, lowering phase of a squat at the knee:

    point of attachment:
    location of the LOP:
    direction of the LOP:
    toruqe:
    • point of attachment: proximal
    • location of the LOP: anterior
    • direction of the LOP: inferior
    • torque: extension
  16. provide a vector analysis at the ankle for the lifting phase of a closed chain squat, for the pull of gravity:

    point of attachment:
    location of LOP:
    direction of LOP:
    torque of gravity:
    • point of attachment: proximal
    • location of LO: anterior
    • location of LOP: inferior
    • torque: dorsiflexion
  17. list the bones of the pelvic girdle:
    • sacrum from an anatomy perspective: a continuation of the spine; from a kinesiology: interactions of the ilium of the pelvis
    • pelvic bones: ilium, ischium, pubis
    • femur: longest bone in the body

    • motions of the pelvis (articulations)
    • sacrum + iliac bones: not voluntary
    • impact forces: sometimes may need to realign the pelvis
  18. list and describe the joint of the pelvic girdle:
    • Sacroiliac Joint (SI Joint)
    • articulations of the pelvic bones and sacrum
    • no voluntary movement (may occur due to injury)

    Voluntary movements of the pelvis as a whole occur
  19. describe the movements of the pelvis, the anterior tilt and posterior tilt:

    plane motion occurs in:
    motion around which axis:
    • anterior tilt
    • the position of the anterior superior iliac spine (ASIS)
    • anterior portion moves anteriorly and inferior
    • anterior tilt occurs more often; more previalent of the the deviated position
    • can cause low back pain
    • prescribe: AB work; the ABS will cause the pelvis to move up, PSIS to move

    • Posterior Tilt
    • PSIS moves superiorly and posterior

    • plane motion occurs: sagittal plane
    • around which axis: medial axis
  20. describe the left and right lateral tilt motions of the pelvis:

    plane the motion occurs in:
    motion occurs around which axis:
    • left lateral tilt
    • located inferiorly when compared to the right

    • right lateral tilt
    • located inferioly when compared to the left

    • plane of motion: frontal plane
    • motion occurs around which axis: anterior-posterior axis
  21. describe the left and right transverse rotation of the pelvis:

    plane the motion occurs in:
    motion occurs around which axis:
    plante motion occurs in: transverse

    which direction is the anterior surface rotating?
  22. pelvic movements result from motion at one or more of the following locations:
    • right hip
    • left hip
    • lumbar spine
  23. List the accompanying motions of the pelvis in anterior tilt:

    lumbar spine:
    left hip:
    right hip:
    • lumbar spine: extension
    • left hip: flexion
    • right hip flexion
  24. list the accompanying motions of the pelvis in posterior tilt:

    lumbar spine:
    left hip:
    right hip:
    • lumbar spine: flexion
    • left hip: extension
    • right hip: extension
  25. list the accompanying motions of the pelvis in Left lateral tilt:

    lumbar spine:
    left hip:
    right hip:
    • lumbar spine: right lateral flexion (the spine leans to the right)
    • left hip: abduction
    • right hip: adduction (the right is closer to the femur)
  26. list the accompanying motions of the pelvis in right lateral tilt:

    lumbar spine:
    left hip:
    right hip:
    • lumbar spine: left lateral flexion (Right iliac crest is inferior to the Left iliac crest (superior))
    • left hip: adduction
    • right hip: abduction
  27. list the accompanying motions of the pelvis in left rotation:

    lumbar spine:
    left hip:
    right hip:
    • lumbar spine: right rotation of the spine
    • left hip: internal rotation
    • right hip: external rotation
  28. list the accompanying motions of the pelvis in right rotation:

    lumbar spine:
    left hip:
    right hip:
    • lumbar spine: left rotation of the spine
    • left hip: external rotation
    • right hip: internal rotation
  29. describe the characteristics of the muscles of the pelvis:
    • all are muscles which initiate or control pelvic movements
    • all either hip joint or lumbar spine muscles
  30. list the muscles invloved in anterior pelvic tilt:
    • hip flexors
    • lumbosacral spinal extensors
  31. list the muscles invloved in posterior pelvic tilt:
    • hip extensors
    • lumbosacral spinal flexors ;strengthen the abdominals
  32. list the muscles of right lateral pelivc tilt:
    • motion: right hip goes down (inferior)
    • left lateral lumbosacral flexors ; left lateral flexion
    • right hip abductors ;glute medius, glute minimus
    • left hip adductors

    these 3 groups do not always create right lateral pelvic tilt; Right hip abductors and Left lateral lumboscaral flexors... but if LLE is not planted then does not include Left hip adductors
  33. list the muscles involved in right pelvic rotations:
    • left lumbosacral rotators ;Left rotation (example: throwing, Left obliques)
    • left hip external rotators ; external rotation
    • right hip internal rotators ; internal rotation
  34. list and describe the bones of the hip joint:

    name of the hip joint:
    name of the hip joint: coxofemoral joint or acetabulofemoral joint

    • bones
    • acetabulum of  pelvis: concave
    • head of the femur: convex
  35. joint type:
    degrees of freedom:

    degrees of ROM in..
    Flexion:
    Extension:
    abduction:
    adduction:
    internal rotation:
    external rotation:

    ..... of the coxofemoral joint
    • joint type: ball & socket
    • degrees of freedom: 3
    • flexion: 120
    • extension: 30
    • abduction: 50
    • adduction: 30
    • internal rotation: 45
    • external rotation: 50

    • fxn of the hip in relation to the knee
    • with extension of the knee can you get 120 of flexion? NO the hamstrings limit the motion; a flexed knee gives more ROM
  36. describe the characteristics of the hip joint that helps provide for stability:
    • articulations are very stable
    • strong, dense ligamentous capsule reinforces joint; particularly anteriorly
    • hyaline articular cartilage (synovial joint); thicker superiorly than inferiorly
    • acetabular labrum lines acetabulum; thicker superior and posterior to femoral head deceleration during walking

  37. why is it necessary that the anterior surface of the coxofemoral joint capsule be stronger:

    why is the articular cartilage thicker inferiorly:
    • the acetabulum is angled a little anterior
    • no bone on bone
    • less to impinge the flexion motion; more ROM

    • articular cartilage thicker inferiorly
    • to absorb impact
    • extra cushioning
  38. describe the structure of the acetabulum and its benefits:
    • structure
    • lined with hyaline cartilage
    • acetabular labrum covers cartilage

    benefits: adds depth to the joint
  39. describe the characteristics of the hip joint capsule:
    • extensible, but not elastic
    • ligaments helps strengthen
    • strong ligaments help provide stability
  40. list the movements of the hip joint:
    • flexion/extension
    • abduction/adduction
    • internal/external rotation
    • diagonal adduction/abduction
    • circumduction
  41. list the hip flexors:

    where are the hip flexors located:
    hip flexors located: anterior

    • hip flexors
    • iliopsoas
    • pectineus
    • rectus femoris
    • sartorius
    • tensor fascia lata
  42. what is the fxn of the iliopsoas:
    • strong flexion
    • external rotation

    • Psoas minor & major
    • Iliacus
  43. what are the 4 fxns of the pectineus:
    • flexion
    • assists in adduction
    • external roation
    • rotates pelvis anteriorly
  44. what is the fxn of the rectus femoris:
    • flexion
    • assists with adduction

    • one of the quad muscles; only 2 joint muscle of the group of hip flexors
    • stronger knee extensor when hip is extended
  45. what is the fxn of the sartorius:
    • flexion
    • abduction
    • external rotation of thight as hip and knee flexed

    weak when both hip and knee flexion occur at the same time
  46. what is the fxn of the tensor fascia lata:
    • abduction
    • flexion
    • tendency to internally rotate hip as it flexs

    • helps prevent external rotation as femur flexed by other flexors
    • important in running and walking
  47. list the hip extensors:

    what is the location of the hip extensors:
    location of hip extensors: posterior

    • hip extensors
    • biceps femoris
    • semimembranosus
    • semitendinosus
    • gluteus maximus
  48. what is the fxn of the biceps femoris:
    • extension
    • external rotation

    important at hip in running, hopping, jumping
  49. what is the fxn of the semitendinosus and semimembranosus:
    • extension
    • internal rotation

    most effective in extension of hip or flexion of knee; not both at the same time
  50. what are the fxn of the gluteus maximus:

    lower portion:
    upper portion:
    most active positions:
    • powerful extension
    • external rotation
    • lower potion assists in adduction
    • upper portion abducts against strong resistance
    • not used much in walking; only when extension beyond 15 degrees
    • strong action in running and jumping
  51. list the hip adductors:

    where are the hip adductors located:
    hip adductors located: medial

    • hip adductors
    • adductor brevis
    • adductor longus
    • adductor magnus
    • gracilis
  52. list the fxn of the adductor brevis:
    • adduction
    • aids in flexion
    • external rotation as adduction occurs

    powerful movement of thighs medially
  53. list the fxn of the adductor longus:
    • adduction
    • assists in flexion
  54. list the fxn of the adductor magnus:
    • adduction
    • assists in extension
    • external rotation as hip adducts

    used in breaststrock kick
  55. what is the fxn of the gracilis:
    • adduction
    • secondary assistance in flexion
    • internal rotation
    • some weak assistance to flexion
  56. list the hip abductors:

    wherer are the hip abductors located:
    hip abductors located: lateral

    • abductors
    • gluteus medius
    • gluteus minimus
    • six deep lateral rotators
  57. what is the fxn of teh gluteus medius:

    anterior fibers:
    posterior fibers:
    • abduction
    • anterior fibers: internal rotation
    • posterior fiber: external rotation as hip abducts

    • needed with gluteus minimus in walking
    • keeps opposite hip from sagging
  58. what is the fxn of the gluteus minimus:
    • abduction
    • internal rotation as hip abducts

    • powerfully maintains proper hip abduction while running
    • tends to lose effectiveness with age
  59. list the 4 external rotators of the hip
    • obturator internus and externus
    • gemellus superior and inferior
    • quadratus femoris
    • piriformis

    used powerfully in movements of external roation of femur, particularly sports

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