Ergonomics
An Overview
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Ergonomics Overview
Ergonomics is the science of fitting the job to the worker. Designing work stations and tools to reduce work-
related musculoskeletal disorders (MSDs) can help workers stay healthy and companies to reduce or eliminate
the high costs associated with MSDs.
Who is Covered?
There are no specific ergonomics regulations, although OSHA will continue to cite ergonomic injuries under the
General Duty Clause of the Occupational Safety and Health Act, Section 5. All employees are covered by OSHA
under this section.
Causes of MSDs
Prolonged exposure to ergonomic risk factors can cause MSDs. Conditions likely to cause MSD problems include:
Exerting excessive force.
Excessive repetition of movements that can irritate tendons and increase pressure on nerves.
Awkward postures, or unsupported positions that stretch physical limits, can compress nerves and
irritate tendons.
Static postures, or positions that a worker must hold for long periods of time, can restrict blood flow and
damage muscles.
Motion, such as increased speed or acceleration when bending and twisting, can increase the amount of
force exerted on the body.
Compression, from grasping sharp edges like tool handles, can concentrate force on small areas of the
body, reduce blood flow, nerve transmission and damage tendon sheaths.
Inadequate recovery time due to overtime, lack of breaks and failure to vary tasks, leave inadequate
time for tissue healing.
MSDs can affect nearly all tissue in the body: nerves, tendons, tendon sheaths and muscles. The most frequently
affected areas of the body are arms and the back.
Employee Training
There are no specific training requirements for ergonomics. However, employees who have been trained to
identify and avoid ergonomic hazards are better able to avoid those hazards, leading to a safer workplace. To
get the most out of an ergonomics program, an employer can train workers on:
Common MSDs and their signs and symptoms.
The importance of reporting MSDs, and signs and symptoms, as soon as possible.
How to report MSDs in the workplace.
Risk factors and work activities associated with MSDs hazards.
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Training Tips
Using the employee handout, define ergonomics.
Provide employees with information on MSDs and their signs and symptoms.
Stress the need for early reporting, and explain the system to report MSDs, signs and symptoms of
MSDs, and MSD hazards.
For More Information See:
Occupational Safety and Health Act, Section 5. DutiesGeneral Duty Clause
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Ergonomics Overview Handout
About 1.8 million workers report musculoskeletal disorders (MSDs), such as carpal tunnel syndrome, tendinitis and
back injuries each year. About 600,000 of those workers need to take time off work because of those injuries.
Work-related musculoskeletal disorders (WMSDs) occur when the physical capabilities of the worker do not
match the physical requirements of the job. Prolonged exposure to ergonomic risk factors can cause damage to
a worker’s body and lead to WMSDs.
Ergonomics is the science of fitting the job to the worker.
Designing work stations and tools to reduce MSDs can help
workers stay healthy and companies to reduce or eliminate
the high costs associated with MSDs.
MSD Risk Factors
We often think of ergonomic problems being associated with
your computer or mouse, but the fact is there are many
repetitive motions that can cause MSD conditions.
Conditions that are likely to cause MSDs include:
Force
Repetition
Awkward Postures
Static Postures
Quick Motions
Compressed or Contact Stress
Vibration
Cold Temperatures
What types of Work are Likely to Cause MSDs?
Manual handling
Manufacturing and production
Heavy lifting
Twisting movements
Long hours of working in awkward positions
How do I know if I have an MSD?
Numbness in your fingers or thighs
Difficulty moving your fingers
Stiff joints
Back pain
An awkward and static position can lead to an ergonomic injury.
Constantly bending over and holding the awkward position to
work can also lead to MSDs.
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Ergonomics Overview SignOff Sheet
The employees of __Company Name____________________________, have taken part in a training session on
Ergonomics Overview. The session covered:
The definition of work-related musculoskeletal disorders (WMSDs).
The signs and symptoms of WMSDs.
The importance of early reporting, risk factors, jobs and activities associated with MSDs.
DATE OF TRAINING:
FACILITY:
EMPLOYEE SIGNATURE
PRINT NAME
________________________________________________________
Supervisor’s Signature
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This material was produced under grant SH26336SH4 from the Occupational Safety and Health Administration, U.S.
Department of Labor. It does not necessarily reflect the views or policies of the U.S. Department of Labor, nor does mention
of trade names, commercial products, or organizations imply endorsement by the U.S. Government