Anthropometry Flashcards

1
Q

Anthropometry

A

Measurement of the human body segments

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2
Q

Anthrompometric Measures

A

-mass
-moment of inertia
-COM

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3
Q

mass

A

amount of matter in a body, it’s resistance to acceleration

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4
Q

COM

A

center of mass: balance point about which free rotation occurs, all mass is equally distributed

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5
Q

MOI

A

moment of intertia: property describing resistance to angular acceleration, increases as mass is located farther from axis of rotation

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6
Q

inertial properties

A

mass, moi, com

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7
Q

body segments

A

-rigid body structures
-may be composed of small segments
-may be combined (HAT)

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8
Q

examples of body segments

A

feet, shank, thigh, trunk, upper arm, forearm, hands, head

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9
Q

Sum of Segment

A

mass * total mass

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10
Q

Segment average

A

(x1+x2)/2 =

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11
Q
A

COM Formulae

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12
Q

xcom

A

x coordinate com

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13
Q

m1

A

mass of first segment

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14
Q

m2

A

mass of second segment

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15
Q

mb

A

mass of whole body

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16
Q

x1

A

x coordinate of first segment COM

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17
Q

x2

A

x coordinate of second segment center of mass

18
Q

ycom

A

y coordinate COM

19
Q

y1

A

y coordinate of first segment com

20
Q

y2

A

y coordinate of second segment com

21
Q

Commonly Used Alternatives For Segment Estimations

A

-cadaver
-mathmatical modesl
-scanning/imaging
-kinematic techniques

22
Q

How much does your thigh weight?

A

~9.7% of body weight

23
Q

Format of Dempster Studies

A

8 older males
Cadaver study -cockpit design

24
Q

Harless Studies

A

Cadaver Study
2 decapitaded males

25
Q

Braune and Fischer

A

Cadaver Study
3 muscular males

26
Q

Importance of Dempster studies

A

-segment mass as proportion of total mass
-COM and k as proportions of segment length

27
Q

Mori and yamamoto

A

cadaver study
n=6

28
Q

Clauser et al

A

preserved cadavers
13 males

29
Q

Importance of clauser study

A

stepwise regression
-segment mass COM = F best antro measures

30
Q

Chandler et al

A

cadaver study- 6 embalmed males

31
Q

Importance of chandler study

A

focused on moment of inertia

32
Q

Whitsett USAF

A

Modeling approach
solid geometric shapes
14 segments

33
Q

Hanavan USAF

A

Modeling approach
geometric shapes
15 segments

34
Q

Hatze

A

modeling approach
17 segments
242 anthro measures
complex
varying densities
Oscillation technique

35
Q

Important Geometric models

A

Frustrum of cone for segments

36
Q

Living subject approaches

A

Immersion

37
Q

image based techniques

A

gamma ray

38
Q

importance of zatsiorsky and seluyanov study

A

100 males, 15 females
Gamma Ray Imaging

39
Q

Importance of De Leva

A

Built on zatsiorsky for segment endpoints

40
Q

Mungiole and martin

A

MRI scans of male athletes legs

41
Q

Where can kinematic techniques be used?

A

extremities only

42
Q

How are kinematic techniques performed?

A

Measuring motion and relating that motion to a mechanical system (pendulum)