workplace environment and ergonomics.pdf
TRANSCRIPT
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WORKPLACE ENVIRONMENT ANDERGONOMICS
SUZANA WATI BT ADNAN6 SEPT 2012
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ERGONOMICRISK
WORKSTATION
HISTORY
WORKPLACEENVIRON-
MENT
SUB TOPIC
SMET
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H ISTORY Early 1700s, Ramazzinis study of ill-effects of poor posture &
designed tools on the health of workers
Greek Words Ergon = work, Nomikos = lawErgonomics Study of Work Laws
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THIRD O BJECTIVE OF OSHA 1994
To promote an occupationalenvironment for persons at work which
is adapted to their physiological andpsychological needs
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W HAT IS ERGONOMICS ?
Ergonomics is fitting the job to the person.
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W HAT IS ERGONOMICS ?
Ergon worNomos law
Ergonomics is tlaws of work th
define the limitshuman capabilit
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W HAT IS ERGONOMICS ?
Ergonomics is the science ofimproving employee performanceand well-being in relation to the
job tasks, equipment, and the environment.
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W HAT IS ERGONOMICS ?
Ergonomics is a continuous improvement effort
to design the workplace for whatpeople do well, and design
against what people dont dowell.
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A PPLYING ERGONOMICS
1. Study, research, & experimentation Evaluate human traits/characteristics we need to know for engineering
design
2. Application & engineering Design tools, machines, shelter, environment, work tasks, and job
procedures to fit and accommodate the human
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THE B ASICS OF ERGONOMICS
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ERGONOMIC R ISK F ACTORS
1 Doing repetitive work
2 Use of excessive force
3 Improper or static body posture
4 Work in long duration
5 Vibration due to hand tools
6 Contact stress on the blood veins, muscles and tendons due to contact stress due
to use of hand tools/equipments
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W ORKSTATION DESIGN PRIN
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W ORKSTATION DESIGN P
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W ORKSTATION DESIGN P
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MUSCULOSKELETAL DISORDERS (MSD S)
A situation arising by excessive use resulting in wear andtear to muscles, tendons, joints and surrounding tissues
In the long term, may result in incapability to use therelated body part
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JOB A NALYSIS
Determination of measurement criteria and work target Compilation of history of targeted job task Identification of ergonomic risk factors Discovery of preventive measures
Selection of preventive measures Implementation of preventive measures Monitoring of preventive measures
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CHARACTERISTICS OF SITTING W ORKS
High body stability
Use of exact andsensitive foot control
Precise hand movements
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CHARACTERISTICS OF SITTING W ORKS
All work components and equipmentswithin seating range
Handling of heavy loads Static posture for long durations
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CHARACTERISTICS OF STANDING W ORKS
Frequent handling ofheavy loads
Frequent stretching andmovements that requireuse of energy
Work mobility frequent forceful exertion
that requires high energy
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CHARACTERISTICS OF SIT/STAND W ORKS
Provision of high chairs as the worker is required to alternate sittin
and standing and change of postures
Mobility of the chair Provision of footrest to reduce swelling and fatigue of the leg and f
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DETERMINATION OF W ORKING H EIGHT
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NORMAL AND M AXIMUM R ANGE