DIMENSIONS OF DIMENSIONS OF ANTHROPOMETRY: ANTHROPOMETRY...
Transcript of DIMENSIONS OF DIMENSIONS OF ANTHROPOMETRY: ANTHROPOMETRY...
DIMENSIONS OF DIMENSIONS OF ANTHROPOMETRY: ANTHROPOMETRY:
CONVENTION OR EXPANSIONCONVENTION OR EXPANSION
SHRAWAN KUMAR SHRAWAN KUMAR PhD,DSc,FErgS,FRSCPhD,DSc,FErgS,FRSC
PROFESSOR EMERITUSPROFESSOR EMERITUSUNIVERSITY OF ALBERTAUNIVERSITY OF ALBERTA
ANTHRPOMETRYANTHRPOMETRY
•• ANTHRO …. HUMANANTHRO …. HUMAN•• METREIN …. MEASUREMETREIN …. MEASURE
THUS,THUS,
ANTHROPOMETRY DEALS WITH ANTHROPOMETRY DEALS WITH MEASURE OF HUMANKINDMEASURE OF HUMANKIND
ANTHROPOMETRYANTHROPOMETRY
•• IS SIZE THE MEASURE OF HUMAN ?IS SIZE THE MEASURE OF HUMAN ?
WE ALL HAVE HEARDWE ALL HAVE HEARD
SIZE IS NO MEASURE OF MAN (HUMAN)SIZE IS NO MEASURE OF MAN (HUMAN)
BUT, IS SIZE THE ONLY MEASURE OF WORKING BUT, IS SIZE THE ONLY MEASURE OF WORKING HUMAN ?HUMAN ?
PROBABLY NOT !PROBABLY NOT !
ANTHROPOMETRYANTHROPOMETRY
•• SIZE IS ONE OF MANY VARIABLE OF SIZE IS ONE OF MANY VARIABLE OF ANY WORKING HUMANANY WORKING HUMAN
•• SIZE IS UNIQUE TO THE INDIVIDUALSIZE IS UNIQUE TO THE INDIVIDUAL•• INDIVIDUALS VARYINDIVIDUALS VARY•• COLLECTION OF VARIABLES COLLECTION OF VARIABLES
CHARACTERIZES A WORKING CHARACTERIZES A WORKING INDIVIDUAL MORE MEANINGFULLY INDIVIDUAL MORE MEANINGFULLY AND REFLECTS THEIR PHYSICALLY AND REFLECTS THEIR PHYSICALLY FUNCTIONING INDIVIDUALITYFUNCTIONING INDIVIDUALITY
PERFORMANCE IS A RESULT PERFORMANCE IS A RESULT OF INTEGRATED EFFORT OF:OF INTEGRATED EFFORT OF:
•• PHYSICAL FACTORSPHYSICAL FACTORS
•• COGNITIVE FACTORSCOGNITIVE FACTORS
•• PSYCHOSOCIAL FACTORSPSYCHOSOCIAL FACTORS
•• CULTURAL FACTORS (SOMETIMES)CULTURAL FACTORS (SOMETIMES)
PHYSICAL FACTORSPHYSICAL FACTORS
FUNCTIONALFUNCTIONAL
•• STRENGTHSTRENGTH•• SPEEDSPEED•• RANGE OF MOTIONRANGE OF MOTION•• ENDURANCE ENDURANCE •• AEROBIC CAPACITYAEROBIC CAPACITY•• PRECISIONPRECISION•• DEXTERITY etc.DEXTERITY etc.
STRUCTURALSTRUCTURAL
•• BODY SIZEBODY SIZE•• MOMENT ARMMOMENT ARM•• MUSCLE CSAMUSCLE CSA•• JOB & BODY JOB & BODY
CONFIGURATIONCONFIGURATION•• FLEXIBILITYFLEXIBILITY•• CONDITIONINGCONDITIONING
STRENGTH …. For exampleSTRENGTH …. For example
•• IN THE CASE OF LIFTING STRENGTHIN THE CASE OF LIFTING STRENGTH
STANDARDSSTANDARDS
•• ILO : ILO : –– Men 24 kg Men 24 kg –– Women 21kgWomen 21kg
•• NIOSH: Action LimitNIOSH: Action Limit–– 3400 N 3400 N LumbosacralLumbosacral compressioncompression–– 3.5 Kcal/min Energy cost3.5 Kcal/min Energy cost–– Acceptable to 99% males and 75% femalesAcceptable to 99% males and 75% females–– Epidemiological risk of injury lowEpidemiological risk of injury low
Functional Strength MeasureFunctional Strength Measure
Strength in Newtons (N)
0
100
200
300
400
500
Required
Available
10 20 30 40 5050 40 30 20 10
10
20
30
40
50
60
60
50
40
30
20
10
Adduction
Extension
Flexion
AbductionDEFICIT AVAILABLE
10 20 30 40 5050 40 30 20 10
10
20
30
40
50
60
60
50
40
30
20
10
Adduction
Extension
Flexion
AbductionDEFICIT AVAILABLE
10 20 30 40 5050 40 30 20 10
10
20
30
40
50
60
130
120
110
100
90
80
70
60
50
40
30
20
10
Adduction
Extension
Flexion
Abduction
DEFICIT
AVAILABLE
10
20
30
40
50
60
70
70 60 50 40 30 20 10
ExternalRotation
InternalRotation
Available
100 200 300 400 5000
30
60
90
120
150
180
Strength in Newtons
Range ofMotion(degrees)
Required
Model of Safety and HazardModel of Safety and Hazard
•• MOS + JMR = 1MOS + JMR = 1
Therefore,Therefore,
•• MOS = 1 MOS = 1 -- JMRJMR
A composite index (C1) of JMR A composite index (C1) of JMR can becan be
obtained by its:obtained by its:
•• three risk factors (Rthree risk factors (R11, R, R22, R, R33))
•• corresponding safety (Scorresponding safety (S11, S, S22, , SS33))
Therefore,Therefore,
•• MOSMOS == SS11 x Sx S22 x Sx S33== (1 (1 -- RR11) (1 ) (1 -- RR22) (1 ) (1 -- RR33))
•• Since, Risk = 1 Since, Risk = 1 -- SafetySafety
•• Therefore in simple conceptual Therefore in simple conceptual terms,terms,CI = [1 CI = [1 -- (1 (1 -- RR11) (1 ) (1 -- RR22) (1 ) (1 -- RR33)])]
Physical Performance Factors
Dexterity
Cardio Vascular Fitness
Range ofMotion
Pain
Strength
Speed
Precision
Endurance
AerobicCapacity
TissueTolerance
Psycho-socialPerformance Factors
DecisionMaking
Task commitmentDrive
Goal orientation
Confidence
Self-esteem
Peer-acceptance
Cognition
IntegrativeJudgment
ReactionTime
Operation
Fatigue
Motivation
Perception
PainTissue
Aerobic
Endurance
Precision
Dexterity
Speed
Strength
ROM
DriveConfidence
Motivation
Fatigue
Operation
ReactionTime
DecisionMaking
IntegrativeJudgment
CognitionPerception
PeerAcceptance
SelfEsteem
GoalOrientation
TaskCommitment
ofMotion
Capacity
Tolerance
AB
PainTissue
Aerobic
Endurance
Precision
Dexterity
Speed
Strength
ROM
DriveConfidence
Motivation
Fatigue
Operation
ReactionTime
DecisionMaking
IntegrativeJudgment
CognitionPerception
PeerAcceptance
SelfEsteem
GoalOrientation
TaskCommitment
ofMotion
Capacity
Tolerance
AB
ANTHROPOMETRY MAY ANTHROPOMETRY MAY INCLUDE:INCLUDE:
•• SIZESIZE•• STRENGTH (Range and optimal STRENGTH (Range and optimal
values)values)•• RANGE OF MOTION (Optimal RANGE OF MOTION (Optimal
range)range)•• RANGE OF SPEEDS (Optimal RANGE OF SPEEDS (Optimal
speed)speed)