Movement Analysis & Principles Flashcards Preview

PT 506 Kinesio / Biomechanics > Movement Analysis & Principles > Flashcards

Flashcards in Movement Analysis & Principles Deck (76):
1

two ways to assess function

movement, task

2

assess movement then blank then blank

components, motion segments

3

assess task then blank

factors ex) environment, psychological, emotional

4

assessment of movement that is the whole task

dynamic

5

assessment of movement that is parts of a task

static

6

analysis of movement describing movement

kinematic

7

analysis of movement for finding force required for a task

kinetic

8

four kinematic variables of movement

location (plane/joint), direction, magnitude, rate/duration

9

four types of motion/displacement

rotary, translatory (linear), gliding, curvilinear

10

movement around a fixed axis in a curved path

rotary (angular)

11

each point on the object moves through the same blank at the same time in rotary movement

angle

12

movement in a straight line

linear (translatory)

13

translatory movement... each point moves through the same blank at the same time in blank

distance, parallel

14

blank rotation often occurs during linear motion

concomitant

15

accessory motion/arthrokinematics and is another form of translation

gliding

16

when an object rotates about an axis and moves through space at the same time ex) thrown ball

curvilinear

17

movement about or around an axis

rotation

18

movement along an axis

translation

19

potential torque

moment

20

completely unconstrained segment

6 degrees of freedom

21

three linear motions

anterior-posterior, medial-lateral, superior-inferior

22

sagittal motion is about or around the blank axis

m-l

23

frontal plane occurs about or around the blank axis

a-p

24

transverse plane occurs about or around a blank axis

longitudinal (vertical)

25

goniometer measures blank motion not blank

osteokinematic, arthrokinematic

26

sagittal plane direction of motion is blank

flexion/extension

27

frontal plane direction of motion is blank

abduction, adduction

28

transverse plane direction of motion

rotation (medial & lateral rotation)

29

magnitude of motion is measured in blank

degrees

30

degrees per second is the blank

angular speed

31

velocity without direction is blank

speed

32

translatory motion quantified by linear blank

distance

33

study of forces

kinetics

34

push or pull

force

35

two types of forces

external, internal

36

N/5 =

~ lbs

37

a line must go with blank in a free body diagram

the muscle fibers

38

the distal lever moves by itself is a blank task

open chain

39

proximal lever moves but not the distal lever type of task

close chain

40

force of gravity attraction to earth

32 ft/s^2

41

a firmness of balance, an ability to resist a disturbing force

stability

42

knees and hands on ground position

quadraped

43

three balance determinants

strength, proprioception, agility

44

stabilitity blank with larger base of support

increases

45

stability blank with body weight

increases

46

as velocity increases stability blank

increases

47

an object with remain at rest or in motion unless acted on by an unbalanced force

Newton's first law (law of inertia)

48

property of an object to resist both the initiation of motion and change in motion

inertia (summation of forces = 0)

49

acceleration of an object is proportional to the unbalanced forces acting on it and inversely proportional to the mass of the object

Newton's second law (law of acceleration) (a = F/m)

50

for every action there is an equal and opposite reaction

Newton's third law (reaction forces)

51

to produce or change the momentum of a body there must be a blank

external force

52

quantity of motion possessed by a body

P = mv momentum

53

increase angular velocity by blank inertia

decreasing

54

the torque applied overtime at the point of "takeoff" determines the quantity of

angular momentum

55

angular momentum blank in flight

does not change

56

falling cat is an example of a blank rotation

zero momentum

57

moment of force (potential)

torque

58

force times distance

torque

59

no skeletal muscle can insert on the joint because the blank would be zero which would create zero blank

distance, torque

60

force couples are blank muscles

synergistic

61

greater compression force, the less blank force

sheer

62

supraspinatus and deltoid are a blank system by creating a blank point to blank the arm

parallel, pivot, abduct

63

lever system with fulcrum between effort and resistance

first class

64

effort is the same as the blank muscle

agonist

65

resistance is the blank load or muscle

antagonist

66

lever system where the order is fulcrum, resistance, effort

second class

67

example of first class lever

occipitoatlanto joint

68

example of a second class lever

knee flexion

69

example of a third class lever

knee extension

70

lever system where the order is fulcrum, effort, resistance

third class

71

second class levers usually create blank contractions

eccentric

72

third class contractions usually create blank contractions

concentric

73

mechanical advantage of second class levers

> 1

74

mechanical advantage of first class levers

= 1

75

mechanical advantage of third class levers

< 1

76

mechanical advantage formula

effort arm / resistance arm