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Kinesiology > Hip > Flashcards

Hip Flashcards

1
Q

Arthrokinematics of hip joint

A

Convex (femur) is moving on concave (acetabulum), so roll and glide opposite

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2
Q

LE closed chain motion for pronation

A

Hip IR
Slight Flexion
Shortening of limb

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3
Q

LE closed chain motion for supination

A

Hip ER
Slight extension
Lengthening of limb

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4
Q

What is the angle of inclination?

A

Angle in the frontal plane b/t the neck of the femur + medial side of the femoral shaft

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5
Q

Angle for Coxa Valga

A

> 125

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6
Q

Angle for Coxa Norma

A

125

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7
Q

Angle for Coxa Vara

A

<125

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8
Q

What causes deviations of the hip alignments?

A

Fractures or congenital in nature

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9
Q

How do deviations of the hip alignment impair function?

A

Joint stability
Weight bearing biomechanics
Muscle biomechanics

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10
Q

What hip alignment lengthens limb?

A

Coxa valgum

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11
Q

What hip alignment decreases mechanical advantage of hip?

A

Coxa valgum

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12
Q

What hip alignment causes decreased hip stability?

A

Coxa valgum

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13
Q

What hip alignment shortens the limb?

A

Coxa varum

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14
Q

What hip alignment increases bending moment for hip muscles?

A

Coxa varum

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15
Q

What hip alignment creates a longer moment arm for hip mm?

A

Coxa varum

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16
Q

What hip alignment increases hip joint stability?

A

Coxa varum

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17
Q

What is the angle of torsion?

A

Angle between a line that runs through femoral head and neck (b/t femoral condyles)

18
Q

Angle of retroversion

A

< 15 degrees

19
Q

Angle of anterversion

A

> 15

20
Q

Excessive anteversion characteristics

A

Inc hip IR
Dec hip ER
Dec joint stability
Dec muscle lever arm (Inc joint forces)

21
Q

Gait in anterversion

A 
toeing in (Pigeon Toed)
Internal rotation of femur + tib
22
Q

What risk may occur in anterversion?

A

Patellofemoral subluxation

23
Q

Retroversion characteristics

A

Inc hip ER

Dec hip IR

24
Q

Gait in retroversion

A

Toeing out

25
Q

What is at risk for in retroversion?

A

Labral tears

26
Q

What defines a Pincer?

A

Hip abduction pinches superior labrum

27
Q

What defines a Cam?

A

Poor clearance of neck w/ hip flexion & abduction

28
Q

What does the Trendelenburg Test look for?

A

pelvic drop

29
Q

What might cause pelvic drop? (in Trendelenburg Test)

A

Weak hip abductors (gluteus medius)

30
Q

During anterior tilt of pelvis, what structures are tightened?

A

Hip Flexors

Lumbar Extensors

31
Q

During anterior tilt of pelvis, what structures are lengthened?

A

Hip Extensors

Abdominals

32
Q

During posterior tilt of pelvis, what structures are shortened?

A

Hip Extensors

Abdominals

33
Q

During posterior tilt of pelvis, what structures are tightened?

A

Hip Flexors

Erector Spinae

34
Q

Straight Leg Raise tests for?

A

hamstring:
-tightness
<80 deg flexion

35
Q

Is SLR test passive or active through range?

A

Passive

36
Q

What indicates stopping point during SLR test?

A

pelvic tilt anteriorly

37
Q

Ely’s Test is for?

A

Rectus Femoris:

  • tight when anterior pelvic tilts OR
  • limited knee flexion
38
Q

What is passive insufficiency?

A

Lengthening a 2 joint muscle over both joints, but can’t stretch anymore

39
Q

Piformis Muscle Length tests for?

A

Sciatic pain OR

Restriction of Movement

40
Q

What hip movements are tested during Piriformis test?

A

Hip internal and external rotation

41
Q

Modified Ober Test tests for?

A

IT band:

  • leg drops <10 deg below horizontal
  • look at pelvic tilt
42
Q

What side should a cane be used on? Why?

A

Contralateral side
Reduce greatest force reduction
Decrease stress to joint to mimic normal gait

Kinesiology (3 decks)

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