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Kin 147 > Week 5 > Flashcards

Week 5 Flashcards

1
Q

The very first angle at the beginning of stance phase is called the

A

Angle at initial contact

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2
Q

The peak angle and the angle at initial contact can be the same angle

A

True

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3
Q

Angular excursion is the total range of motion the joint moves in a specific direction

A

True

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4
Q

Which of the following ankle kinematic patterns appear to be the most problematic in regards to running injury risk

A

Prolonged eversion

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5
Q

Why is looking at the knee flexion angle at initial contact important during a running analysis

A

Too much knee extension at initial contact increases stress on the knee

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6
Q

Which of the following is not a component of medial collapse

A

Hip abduction

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7
Q

Running kinematics are generally very similar for males and females suffering from patellofemoral pain

A

False

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8
Q

Landing with knee valgus during cutting is actually ok and not a risk factor for injury

A

False

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9
Q

Which of the following is not a sign of bad jump landing biomechanics

A

Elevated hip flexion

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10
Q

Which of the following is a hallmark of instability for any kinematic graph

A

Large and/or numerous spikes, dips and parabolas

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11
Q

What tools are required for 3D motion capture

A

Calibration wand

Reflective markers

Cameras

Measuring device

Software/computer

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12
Q

What 3 things have to be done for system calibration

A

Masking

Wave the wand

Set up origin

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13
Q

What is masking

A

Getting rid of all the reflective points in lab

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14
Q

Subject calibration depends upon

A

Anthropometrics

Marker set used

Stand in the middle of origin to take a picture

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15
Q

What anthropometric measures are required in plug in gait

A 
Leg length
Ankle width
Knee width
Height
Weight
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16
Q

What is overstriding

What does it cause

A

When the knee is very extended and landing way out in front of center of mass

Increase force at the knee and can lead to injury

17
Q

What causes problems in runners

A

Prolonged eversion

18
Q

What does forefooot running cause

A

Increase force at the ankle

19
Q

What is medial collapse consist of

A

Knee valgus

Hip adduction

Hip internal rotation

Pelvic drop

Trunk lean

20
Q

On a graph that involves stance phase and the joint angle, where is:

Angle at initial contact
Angle at toe off
Peak angle

A

First data point

Last data point

Highest or lowest data point

21
Q

What is a peak angle

A

Most extreme angle

22
Q

What is angular excursion

A

Total range of motion the joint moves in a specific direction

23
Q

Is foot pronation (eversion) good for running

A

Eversion is actually good

But prolonged (high duration) is actually what is bad

24
Q

Prolonged eversion can lead to _____

Not related to _______

A

Achilles tendinopathy
and Medial tibial stress syndrome

NOT related to greater excursion, greater angle or greater velocity

25
Q

Female runners with patellofemoral pain show to have greater

A

Hip adduction, hip internal rotation and shank internal rotation
And
Less contra lateral trunk lean

26
Q

Males with patellofemoral pain showed to have greater

Compared to healthy males

Compared to females with PFP

A

Peak knee adduction, peak knee external adduction compared to healthy males

Less peak hip adduction and greater knee adduction compared to females with PFP

27
Q

When is the ACL most stressed

A

When knee is placed in:
Valgus position
Femur is internally rotated on fixed tibia

28
Q

2/3 of ACL injury is due to

A

NON CONTACT

29
Q

Bad cutting mechanism include

A

Too much knee valgus

Pelvic drop

Hip adduction

30
Q

Good cutting mechanism includes

A

Hip abduction
Small valgus
Pelvis level

31
Q

What is the main way we fix an ACL

A

Motor relearning - teaching people how to cut

32
Q

Bad jump landing mechanism includes

A

Too much Valgus
Too much Hip adduction
Too much Pelvic drop
Limited hip and knee flexion

33
Q

Overall what should we look out for in Running analysis

A

Ankle eversion

Knee flexion

Knee valgus

Hip adduction

Hip internal rotation

34
Q

Overall what should we look out for in Cutting analysis

A

Ankle eversion

Knee flexion

Knee valgus

Hip adduction

Hip internal rotation

35
Q

Overall what should we look out for in Jump landing analysis

A

Ankle eversion

Knee valgus

Hip adduction

Knee flexion

Hip flexion

Kin 147 (12 decks)

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