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South College Therapeutic Interventions > Week 1- Kinematics of Human Movement > Flashcards

Week 1- Kinematics of Human Movement Flashcards

1
Q

Kinematics

A
  • Branch of mechanics that describes the motion of a body

- No reference to force/torque

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2
Q

Displacement

A

Change in position/time

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3
Q

Translation

A
  • Linear motion

- All parts move together

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4
Q

Rotation

A

Rigid body moves in a circular path around some pivot point

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5
Q

Curvilinear motion

A

All parts move together in a nonlinear path

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6
Q

Direction of x-axis

A
  • Coronal

- Side to side

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7
Q

Direction of y-axis

A
  • Vertical

- Up and down

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8
Q

Direction of z-axis

A
  • Anteroposterior

- Front to back

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9
Q

Degrees of freedom

A

Number of independent directions of movements allowed at a joint

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10
Q

Arthrokinematics

A
  • Describes the motion occurring b/t articular surfaces of joints
  • Maintains joint integrity
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11
Q

Roll (rock)

A

Multiple points along one rotating articular surface contact multiple points on another articular surface

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12
Q

Slide (glide)

A

A single point on one articular surface contact multiple points on another articular surface

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13
Q

Spin

A

A single point on one articular surface rotates on a single point on another articular surface

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14
Q

Convex-on-Concave Rule

A

Roll and slide occur in opposite directions

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15
Q

Concave-on-Convex Rule

A

Roll and slide occur in the same directions

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16
Q

How does the proximal or distal nature of the bony segment affect arthrokinematics?

A

It will determine if the concave is moving on the convex or vice versa

17
Q

Close-Packed Position

A
  • Joint Congruency: minimum
  • Ligaments and Capsule: slack
  • Joint Surfaces: unlocked
  • Intra-articular Volume: Maximized
  • Static Efficiency: inefficient
  • Dynamic Safety: safe
18
Q

Open-Packed Position

A
  • Joint Congruency: maximum
  • Ligaments and Capsule: tense
  • Joint Surfaces: locked
  • Intra-articular Volume: minimized
  • Static Efficiency: efficient
  • Dynamic Safety: dangerous
19
Q

Categories for ROM

A
  • Hypermobility
  • Normal
  • Hypomobility
20
Q

Normal back extension ROM

A

25 degrees

21
Q

Normal back flexion ROM

A

90 degrees

22
Q

Normal back lateral flexion ROM

A

25 degrees R/L

23
Q

Normal neck extension ROM

A

60 degrees

24
Q

Normal neck flexion ROM

A

50 degrees

25
Q

Normal neck lateral flexion

A

45 degrees R/L

26
Q

Normal neck rotation ROM

A

80 degrees R/L

27
Q

Normal hip extension ROM

A

30 degrees

28
Q

Hypermobility

A
  • May be normal, even advantageous
  • =/= instability
  • Can suggest underlying medical condition (Marfans, EDS, etc)
29
Q

Hypomobility

A

Little ROM compared to normal limits

South College Therapeutic Interventions (23 decks)

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