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pt kinese > Hip Biomechanics > Flashcards

Hip Biomechanics Flashcards

0
Q

posterior tilt causes the spine to blank

A

flex, (move into kyphosis)

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1
Q

anterior pelvic tilt is blank

A

hip flexion

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2
Q

posterior pelvic tilt causes blank

A

hip extension

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3
Q

closed chain movement of the hip is referred to as blank

A

tilting

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4
Q

close chained frontal plane motion at pelvis is referred to as

A

about or around left OR right hip

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5
Q

contralateral hemipelvis elevation causes ipsilateral hip blank

A

abduction

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6
Q

flexion norm of hip

A

120

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7
Q

extension norm of hip

A

20

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8
Q

contralateral depression results in ipsilateral blank

A

adduction

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9
Q

abduction norm at hip

A

45

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10
Q

adduction norm at hip

A

30

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11
Q

with knee extended, this checks adduction, and this checks abduction

A

itb, gracilis

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12
Q

contraction of glute medius during walking is blank

A

eccentric

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13
Q

ir of hip at neutral

A

55

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14
Q

ir of hip in flexion

A

45

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15
Q

er of hip in neutral

A

55

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16
Q

er of hip in flexion

A

45

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17
Q

blank becomes taut in hip flexion

A

posterior capsule

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18
Q

taking a step with the left foot causes blank of the pelvis in the transverse plane

A

left forward rotation

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19
Q

left forward rotation causes right blank

A

ir

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20
Q

gait results in blank hip flexion

A

30

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21
Q

gait causes blank hip extension

A

10

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22
Q

gait causes blank abd/add/ir/er

A

5

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23
Q

abduction arthro

A

sup roll, inf glide

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24
Q

adduction arthro

A

inf roll, sup glide

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25
Q

ir arthro

A

ant roll, post glide

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26
Q

er arthro

A

post roll, ant glide

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27
Q

flexion arthro

A

anterior spin

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28
Q

okc of the hip means all segments move blank

A

in same direction

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29
Q

extension of hip arthro

A

posterior spin

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30
Q

closed chain movements of the hip occur with a fixed blank and blank

A

head, feet

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31
Q

close chain anterior pelvic tilt causes blank of lumbar spine

A

extension

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32
Q

vladimir janda - pelvic crossed syndrome - individuals in stuck anterior or posterior pelvic tilt is caused by blank structures and blank structures

A

adaptively lengthened, shortened

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33
Q

anterior tilt causes shortening of blank

A

iliopsoas, erector spinae

34
Q

lengthening of these during anterior pelvic tilt

A

rectus abdominis, hamstrings

35
Q

posterior pelvic tilt causes shortening of

A

rectus abdominis, hamstrings

36
Q

posterior pelvic tilt causes lengthening of blank

A

erector spinae, iliopsoas

37
Q

most common tilt of pelvis from overweight or footwear

A

anterior

38
Q

inonimate equals blank

A

hemipelvis

39
Q

pubis makes up blank of hip

A

1/5

40
Q

ischium makes up blank of hip

A

2/5

41
Q

ilium makes up blank of hip

A

2/5

42
Q

acetabulum faces blank

A

anterior, lateral, inferior

43
Q

3 acetabular changes with aging

A
  1. ossification of bones (increasing central stability)
  2. decreased acetabular roundness (reduced co-aptation/mobility)
  3. increased center edge angle (increased superior stability)
44
Q

femoral head is more blank than acetabulum

A

spherical

45
Q

ligament carrying acetabuluar branch of the obturator artery to the head of the femur

A

ligamentum teres

46
Q

angle of inclination of the femur blank with age

A

decreases

47
Q

early infants angle of inclination

A

150

48
Q

adult angle of inclination

A

125

49
Q

aged adult angle of inclination

A

120

50
Q

higher angle of inclination contributes to blank

A

coxa valga

51
Q

small angle of inclination contributes to blank

A

coxa vara

52
Q

increased leg length produces ipsilateral hip blank

A

adduction

53
Q

coxa valga increases blank of abductors

A

pre load

54
Q

coxa valga decreases blank of the abductors however

A

moment arm

55
Q

femoral acetabular impingement is often causes by having blank of the hip

A

coxa vara

56
Q

fracture and slipped femoral capital epiphysis create blank at the hip due to gravity

A

coxa vara

57
Q

angle of version is the angle between blank and blank

A

head, condyles

58
Q

> 8-15 of torsion of the hip is

A

anteversion

59
Q

excessive uncompensated anteversion would cause blank

A

groin pain, instability,

60
Q

compensated anteversion or uncompensated retroversion creates blank in feet

A

toe in

61
Q

uncompensated anteversion and compensated retroversion creates blank

A

toe out

62
Q

greatest hip bone congruency is at blank,blank,blank which is the blank position because blank is slacked

A

flexion, abduction, lateral rotation, open pack, soft tissue

63
Q

ligaments are taut in blank which is the blank position

A

extension, close pack

64
Q

some of the femoral head remains uncovered because inferior angulation of acetabulum is blank than the superior angulation of the femoral neck… also the anterior aspect of the blank and blank

A

less than, femur head, acetabulum

65
Q

exposed superior and anterior femoral head leads to blank superior and anterior stability

A

decreased

66
Q

psoas major is attached to blank

A

anterior lumbar vertebra

67
Q

tight iliopsoas can create increased blank and blank

A

lumbar lordosis, anterior pelvic tilt

68
Q

TFL actions

A

flex, IR, abducts flexed hip

69
Q

all fibers of gluteus medius blank

A

abduct

70
Q

anterior fibers of gluteus medius blank and blank

A

flex, IR

71
Q

posterior fibers of gluteus medius blank the hip

A

extend, ER

72
Q

peak isometric torque of blank exceeds blank muscles

A

adductors, abductors

73
Q

only adductor to cross the knee

A

gracilis

74
Q

tight adductors can cause contralateral hemipelvic blank

A

depression

75
Q

average superincumbent bw

A

2/3 total weight

76
Q

each femoral head receives blank of superincumbent body weight

A

half

77
Q

unilateral stance receives blank superincumbent weight as well as blank of the unsupported limb

A

full, full weight

78
Q

normal compression force at hip for 180 pound person

A

600

79
Q

ipsilateral cane force at hips

A

450 inch pounds

80
Q

ipsilateral lean force on hip

A

225 inch pounds

81
Q

contralateral cane force at pelvis

A

125 inch pounds

82
Q

when using contralateral cane, lats need to contract blank and produce blank force

A

isometrically, 200 inch pounds

83
Q

ipsilateral load in UE will cause blank of the hip abductor muscles

A

decreased torque

pt kinese (10 decks)

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