Managing Ergonomics in the Workplace - Minnesota Department of
Workplace Ergonomics
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Transcript of Workplace Ergonomics
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Workplace ErgonomicsWorkplace Ergonomics
Contra Costa County Schools Insurance groupLoss Prevention Services
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What will be covered.What will be covered.
What is Ergonomics Ergonomic Statistics The benefits of an Ergonomic program Ergonomic related injuries and their causes Identifying Ergonomic Risk Factors Office Ergonomics Industrial Ergonomics Control Strategies to minimize risk What you can do to prevent injury
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What is Ergonomics?What is Ergonomics?
Ergonomics is the science of fitting workplace conditions and job demands to the capabilities of employees. ( U.S. Dept.of Health)
Ergonomic principles are used to improve the “fit” between the worker and the workplace.
A practical approach to Ergonomics considers the match between the person, the equipment they use the work processes and the work environment.
A persons capabilities, physical attributes and work habits must be recognized to improve ergonomic factors in the workplace.
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Ergonomic Statistics Ergonomic Statistics
90% of all office workers use personal computers.
In 1997 work related musculoskeletal disorders reached 275,000 cases.
Carpal Tunnel Syndrome comprises 13% of all workplace injuries.
Women outnumber men 3:1 sustaining Carpal Tunnel Syndrome.
WMSD’s account for $20 billion in direct costs each year and $100 billion in indirect costs.
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The benefits of an ergonomic programThe benefits of an ergonomic program
Decreased injuries,illnesses, and workers’ compensation costs.
Increased efficiency at work.Increased physical well being.Decreased absenteeism and turnover.Increase in employee morale.
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Ergonomic related injuriesErgonomic related injuries
May be called:CTD’s (cumulative trauma disorders) RSI’s (repetitive stress injuries)RMI’s (repetitive motion injuries)Which are all considered:MSD’s (musculoskeletal disorders)MSD’s can affect muscles, tendons,
nerves, joints and spinal disks.
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Common types of MSD’sCommon types of MSD’s
TendonitisCarpal Tunnel SyndromeTennis ElbowNeck and Back injuriesStrains/SprainsBursitisThoracic Outlet SyndromeTrigger finger
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Risk factors and causes of MSD’sRisk factors and causes of MSD’s
RepetitionForceAwkward PostureStatic PostureContact StressTemperature ExtremesVibrationPsycho Social
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Identifying Risk FactorsIdentifying Risk Factors
Conditions or circumstances that increase the chances of developing a MSD.
The likelihood of developing an injury is dependent on the frequency and duration of exposure to risk factors.
Both occupational and personal risk factors can affect an individuals well being at home or work.
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RepetitionRepetition
Occurs when the same or similar movements are performed frequently.
Repetition can also occur when different tasks are performed if those tasks have the same movements.
Injury may result from repetition when the tissues do not have adequate time to recover.
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ForceForce
Force is the amount of physical effort required by a person to do a task or maintain control of tools or equipment.
A pinch grip produces 3-5 times more force on the tendons in the wrist than a grip with the whole hand.
With excessive force the muscles are contracting much harder than normal, this can lead to stress on the muscles, tendons and joints.
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Awkward PostureAwkward Posture
Is a deviation from the “neutral” body position.
A “neutral” body position is safest and most efficient position in which to work.
Awkward posture puts stress on muscles, tendons and joints.
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Static PostureStatic Posture
Static posture occurs when one position is held for a prolonged period of time.
The muscles will become fatigued from a lack of blood flow during a static posture.
This fatigue can lead to discomfort and even injury.
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Contact StressContact Stress
Contact stress is caused by any sharp or hard object putting localized pressure on a part of the body.
Contact stress will irritate local tissues and interfere with circulation and nerve function.
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Temperature ExtremesTemperature Extremes
Environmental conditions such as extreme heat or cold can place stress on tissues.
Extreme cold constricts blood vessels and reduces sensitivity and coordination of body parts.
Excessive heat can result in increased fatigue and heat stress.
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VibrationVibration
Exposure to vibration can occur while using power tools or while driving equipment.
Vibration from power tools can place stress on the tissues of the fingers, hand and arms.
Whole body vibration from driving puts stress on the spinal tissues.
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Psycho-social IssuesPsycho-social Issues
Stress, boredom, job dissatisfaction and anxiety can contribute to the possibility of developing a MSD.
Psycho-social issues can create increased muscle tension and reduce a person’s awareness of work technique.
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Office ErgonomicsOffice Ergonomics
By applying ergonomic principles to the office setting, risk factors are minimized, productivity is increased, and overall workplace quality is improved.
The workstation must be adjusted to promote a neutral position while a person works.
When adjusting a workstation, keep in mind that all of the equipment interacts. Making one adjustment may alter another.
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Adjusting the WorkstationAdjusting the Workstation
Adjust the Chair.
Adjust reach requirements.
Adjust focal requirements.
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Correct the EnvironmentCorrect the Environment
Check lighting, noise and temperature.
Check work pace and stress levels.
Check work processes.
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Improve Posture and HabitsImprove Posture and Habits
Modify wrist/hand motions
Improve neck and back postures
Consider personal preferences
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Industrial ErgonomicsIndustrial Ergonomics
By applying ergonomic principles in industrial settings, a safer, healthier and more productive work environment can be developed
Employees and employers need to know how to minimize risk factors by choosing the best tools and work techniques for a given task.
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Arrange the work areaArrange the work area
Consider the base of support.
Place equipment and materials where appropriate.
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Choose the appropriate toolsChoose the appropriate tools
Check the fit.
Make sure the tools match the task.
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Correct the environmentCorrect the environment
Adjust lighting, noise and temperature when possible.
Check work pace.
Check work processes.
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Improve work techniques and habitsImprove work techniques and habits
Improve postures.
Check work techniques.
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Control StrategiesControl Strategies
The next step is to develop and implement control strategies to increase quality and productivity.
Once the risk factors and their causes are identified, control strategies can be implemented based on needs.
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Engineering ControlsEngineering Controls
Appropriate initial design of the work station or work area.
Improving the design of the existing work area or equipment.
Providing necessary equipment and accessories.
Adjusting the work station layout and equipment.
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Administrative ControlsAdministrative Controls
Training workers in work methods.
Varying or rotating work tasks.
Limiting extended work hours.
Providing mini-breaks.
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Personal Protective EquipmentPersonal Protective Equipment
PPE acts as a barrier between a person and a hazard.
PPE is only appropriate in situations when engineering or administrative controls cannot be implemented.
Back belts and other braces are not considered PPE. These devices should not be used in place of incorrect work techniques.
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What you can do to prevent injury.What you can do to prevent injury.
Develop an Ergonomics program.Take proper breaks.Health and Fitness.Be aware of your hobbies away from
work.
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When Ergonomics are improved in the When Ergonomics are improved in the workplace:workplace:
We work smarter, not harder.Quality, comfort and safety make us more
productive and happy people.Stay Healthy and Safe, Take action!!!