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“Ergonomics & Manual Handling” is a 1-day training course specifically for those;
people responsible for performing manual handling activities and
the personnel who manage or conduct workplace risk assessments required by the Health and Safety Regulations on Manual Handling Operations.
Introduction
The course includes a thorough description of the Manual Handling Operations and the Ergonomics principles that that should be applied to reduce the risk of manual handling injury..
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OFFICE ERGONOMICS: WHAT, HOW & WHY. An Essential Reading For Office Workers.Abdul Shukor
Cases of bodily pains, severe low back pain, shoulder pains and occupational stress are on the upward trend these days. Many workers are suffering LONG TERM ill effects that make they life a misery. Actions must be taken to minimise or eliminate these sources of pains. An awareness of Office ERGONOMICS could be the right remedy to solve these pains.
“Ergonomics & Manual Handling” is a 1-day training course specifically for those;
people responsible for performing manual handling activities and
the personnel who manage or conduct workplace risk assessments required by the Health and Safety Regulations on Manual Handling Operations.
Introduction
The course includes a thorough description of the Manual Handling Operations and the Ergonomics principles that that should be applied to reduce the risk of manual handling injury..
This approach not only delivers legal compliance, but will help reduce body-related sickness and absenteeism, lower healthcare costs, insurance premiums and compensation claims and improve the productivity of the workforce.
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This paper looks at some of the issue regarding computer workstation design and chair selection. It discusses some of the common musculoskeletal problems including carpal tunnel syndrome, neck, shoulder an low back problems caused by computer use.
“Multi-Purpose Manually Operated Cart” is a cart which is designed ergonomically to improve the working conditions of laborers and workers at
construction sites, factories, ports, railway stations, etc. The main objective is to prevent various occupational hazards and improve the quality of life for
workers everywhere. The simple, durable, light weight and cost effective carrier is intended to reduce the pressure put on the spine when load is carried
on the head. There is also a good hand grip which reduces stress on the spine when load is carried on the back or while pushing a cart. In due course of
our study we analyzed working condition of laborers and people living around our city, usually they carry goods or materials on their head, back,
shoulders which make the task more difficult for them and they are more prone to injuries thereby aroused the need of an ergonomic push cart which
would help them to carry materials easy and without injuries. The easily usable carrier, made up of cane which underwent bending process for giving it a
designed shape. This cane structure weighs 1 kg which is provided with cushions and belt. The main objective of the design is to prevent various
occupational hazards and improve the quality of life of the laborer. This product will help them in their work. The carrier can be used into three different
forms. This allows the user to carry lighter loads on the head, medium loads at the back and heavier loads on a trolley. Ergonomically the load is
distributed on the shoulder and at the lumber support by softer material.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
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GIÁO ÁN DẠY THÊM (KẾ HOẠCH BÀI BUỔI 2) - TIẾNG ANH 8 GLOBAL SUCCESS (2 CỘT) N...
Osha ERGONOMICS
1. INTRODUCTION TO ERGONOMICS
Ergonomics derives from two Greek words: ergon, meaning work, and nomoi, meaning natural
laws, to create a word that means the science of work and a person’s relationship to that work.
The International Ergonomics Association has adopted this technical definition: ergonomics (or human
factors) is the scientific discipline concerned with the understanding of interactions among humans and
other elements of a system, and the profession that applies theory, principles, data and methods to
design in order to optimize human well-being and overall system performance.
That is not the most efficient definition of what ergonomics is. Let us keep things simple. Ergonomics is
the science of making things comfy. It also makes things efficient. And when you think about it, comfy
just another way of making things efficient. However for simplicity, ergonomics makes things
comfortable and efficient.
INTRODUCTION AMONG WORKPLACE
Ergonomics is the scientific study of human work. It considers the physical and mental
capabilities and limits of the worker as he or she interacts with tools, equipment, work methods, tasks
and the working environment. Office Ergonomics is the branch of ergonomics dealing specifically with
the office environment. In recent years the main focus of office ergonomics has been on computer work
due to the rapid increase in computer use in the modern office and the associated increase in injuries.
People are an essential part of every business process and critical to delivering quality products and
services. It isespecially costly when a person becomes injured or ill given both these direct costs and the
loss of the valuable services provided by the person.
Ergonomics is a tool which business owners and managers can use to help prevent these injuries in the
office. Ergonomics reduces the risk of injury by adapting the work to fit the person instead of forcing the
person to adapt to the work. In addition to injury prevention, ergonomics is also concerned with
enhancing work performance, by removing the barriers that exist in many work places that prevent
employees from performing to the best of their abilities. Therefore, another benefit of applying
ergonomics to office work is that it helps people work more effectively, efficiently, and productively at
their jobs. The application of ergonomics in your workplace is a creative process, and to be successful it
may require all of the available expertise within your company. You will therefore want to ask for input
from all staff levels, including management, supervision and employees, when dealing with ergonomics
issues.
2. THE LATEST SCENARIO
10,000 Employees M'sia Suffering Limb Injury because Use Computer
KUALA LUMPUR, Feb 5 (Bernama) -- Each year, about 10,000 employees in Malaysia that using the
computer at workplaces experience top limb injury thereby National Institute Occupational Safety dan
Health (Niosh) propose necessary encourage ergonomics usage at workplaces.
PengerusiNiosh Tan Sri Lee Lam Thye said industry who implement ergonomics programme report
accident number marked depreciation, injury, ill and health care cost and productivity improvement,
efficient work, product quality and higher employee morale.
Ergonomics -- combine knowledge produced from humanity science to be matched between work,
system, product and environment to physical capacity and mental and the limitation -- is new area in
Malaysia compared to developed nation like Japan, United States and Canada, he said in a statement.
"Hence, philosophy, essence, principle and obviously important ergonomics concept to mankind at
workplaces and with neglect would adversely affect efforts to support job, security and health at
workplaces, he said.
Lee said PertubuhanKeselamatanSosial statistic (Perkeso) showing number of cases involving hurt in top
limb, especially finger and hand, reach approximately 10,000 each year and number that sustains
injuries in back was about 2,000 cases.
While researched by Niosh show 61.4 percent from staff that using the computer at workplaces
experience pain in lower part back, shoulder and neck while 70.6 percent from them complaining eye
fatigue.
"In 2004, Perkeso spent more RM722.4 million to compensation. I believe the amount can be reduced if
we take proactive measure to increase security level at workplaces," he said.
Lee said already documented that computer and tool related to him is a correlation with various bone
problem and muscle in hand, arm, neck, back and foot.
Bone problem and the muscle is a correlation with design, arrangement and usage various furniture
components in office.
"Niosh , as prime training institutes in safety and occupational health, committed to support ergonomics
to Malaysian workforce. Course, exhibition, talk, seminar and conference held periodically in the field,"
he said.
--BERNAMA
3. CONTENT
Ergonomics in Office
Offices vary from multi-storeyed, air conditioned buildings to small areas that are part of
warehouses, factories, hospitals and homes. While hazards in the office may not always be as obvious as
those in factories, office workers may also face a range of health and safety issues, including poor job
design, prolonged repetitive work, moving heavy loads, inadequate lighting and cramped or unsafe work
areas.
Most injuries that happen at work are caused by physical stress and strain, such as sitting in the same
position for a long time, making repetitive movements, and overuse. These injuries can cause stress and
strain on your muscles, nerves, tendons, joints, blood vessels, and spine.
Curent statistics
Worker's compensation claims for injuries that occur in the office environment come from three areas –
computerwork, materials handling (lifting and carrying) and general office work. A review of L&I's State
Fund claims data foroffice workers shows that the number of injuries from each of these sources
accounts for a roughly equal percentageof the total number of WMSD's:
WMSD's in the office (Source: 1993 WA State Fund claims data)*
Claims can also be divided based on whether or not the employee has to take time off work when
recovering. No compensable claims are those claims with three or fewer days of recordable time loss,
while compensable claims involve more than three days of time loss.
33%
35%
32%
WMSD's in the office (Source: 1993 WA State
Fund claims data)*
computer related general office work lifting and carrying
4. Common Workplace Postures
There are common postures found in the office environment
that can be considered when designing workplace products or
space. This section reviews guidelines for these postures:
• Standing
• Sitting
• Reaching
• Moving
Standing
Some users may need or want to stand while at their workstations.
If this is the case, an appropriate desk can be designed and
selected for the type of work being performed.
Desk height for a standing operator can range from 28-43"
(Grandjean, 1997) depending on whether the desk is for precision,
light, or heavy work.
Sitting
Knowing what parameters to design for while the user is seated
can help increase the comfort of the user.
Standing
Some users may need or want to stand while at their workstations.
If this is the case, an appropriate desk can be designed and
selected for the type of work being performed.
Desk height for a standing operator can range from 28-43"
(Grandjean, 1997) depending on whether the desk is for precision,
light, or heavy work.
Posture
Correct seated posture is a continual debate with ergonomic professionals.
Some say that users need to have a 90-90-90 degree
placement for the elbow, hip, and knee joints, respectively.
Others feel that a variation in this placement is better, as long as
it does not lead to slouching or hunching over.
A good seated posture is one that is comfortable and does not
put a lot of stress or strain on the user’s buttocks, back, or arm
muscles, and allows the user’s feet to be on the floor.
Reaching
While sitting or standing, an individual at work will usually have
5. to reach for something.
The section on Common Workplace Motions discusses the details
of healthy and unhealthy reach zones (see page 17).
The workstation, and parts that go with workstations (such as
overhead storage and pedestals), should allow the majority of
movement of the user’s body joints within healthy zones.
When designing products, consider how much individuals will
have to reach in order to minimize awkward or unhealthy positions.
Moving
Users will move around in their environment to fi le papers,
answer a phone, or stretch. An occasional break from sitting is
encouraged because it helps to stimulate muscles, and increases
bloodflow, which decreases fatigue.
The space in a cubicle or desk area should allow the chair to
move around easily. Also, a wheelchair may need to turn around
or move in the office space, requiring a 60" diameter turning radius
and at least 36" of passage width .
.
6. Effect of the problem
Ergonomists have examined a number of jobs where there have been a high incidence of WMSD's, and
have found some common elements present in each of these jobs which are associated with these
injuries. These elements are called risk factors, because exposure to them increases the chance that a
worker will become injured. The following are examples of risk factors that are found in office work,
some or all of which may be
present at the same time:
Common Risk Factors
• Repetition
• Static Loading or Sustained
Exertions
• Awkward Postures
• Mechanical Contact Stress
Repetition
Performing the same or similar motions repeatedly can result in trauma
to the joints and surrounding tissues. Without time for rest and
recovery, repetition can lead to injury.
Examples:
Computer Work Office Work
• typing at the keyboard • flipping through files and paperwork
• moving and clicking the mouse • using a calculator
• looking back and forth between the
monitor and source documents • writing by hand
• stapling and three-hole punching by hand
Static loading or sustained exertions
One of the risk factors that has increased in the computerized office is static
loading, where the muscles must hold the body in a single position for a long
period of time. This lack of movement reduces circulation and causes muscle
tension, which can contribute to or aggravate an injury. Sustained exertions
are a type of static loading where force is applied continuously for long
periods of time.
Examples:
Computer Work Office Work
• holding the hands in place above the
keyboard or mouse • looking down at documents laying flat on the
desk
• holding down the Shift key • sitting upright without back support
• keeping the head still while reading from
the monitor • holding the handset while talking on the
telephone
• sitting still for long periods of time • holding boxes in the hands while carrying
them
7. long distances
Awkward postures
Postures that bend the joints into positions where they are more likely to become injured are termed
awkward
postures.
Examples:
Computer Work Office Work
• typing with bent wrists • slouching or leaning forward in the chair
• turning the head to the side to view
the monitor • cradling the phone between the ear and the
shoulder
• reaching up and over the keyboard to
use the mouse • elevating the arms when writing on a work
surface
that is too high
• leaning over to type in data from
paperslaying flat on the desktop • bending at the waist to load copy machines
Avoid awkward postures such as:
Reaching forward to use the mouse
Hunching one shoulder to cradle the phone
Looking down at papers laying flat on the desk
Characteristic of the problem
Lighting
Office lighting can have a considerable effect on both comfort and performance. Harsh, excessively
bright fluorescent lighting can cause eye strain, especially when it creates glare on computer monitors.
Too little lighting can also result in eye strain when working with paper documents, as well as a
"gloomy" atmosphere in which to work.
Windows can cause lighting and glare problems as well, although most employees prefer to have natural
light and a view, given the choice. Direct sunlight can create light levels many times brighter than what is
needed for office work, however.
Appropriate light levels
Light levels for computer use should be lower than those for reading from paper documents.
The difference is due to the fact that computer monitors give off their own light, while paper
depends on reflected light to be legible. In order to prevent eye strain at the computer, it is
8. important that the surrounding, or ambient, light levels are similar to the amount of light
emitted by the monitor screen. A window or other bright light source in the field of vision
behind or to the side of the monitor can be just as annoying as glare reflecting off of the monitor
itself.
Testing light levels
While you could measure light levels in your office using a photographer's light meter, a simpler
method is to survey employees in the area as to whether the lighting is too bright, too dim, or
just right. A quick test to see if overhead lights are too bright is to shade your eyes by placing
your hand above them, as if searching for something at a distance. If you can feel your eyes
relax, then the lighting is too bright or too harsh.
Optimizing light levels
There are considerable differences in individual preferences for light levels. These differences
can make consensus difficult when trying to set a single light level. Lighting to a uniformly low
level and then providing task lighting to employees who need more light can help to resolve this
issue.
Benefits of improved lighting
• Reduced glare
• Increased productivity
• Improved work quality
• Energy savings
Preventing glare
Light can shine directly into the eyes, such as sunlight through a window, or be reflected off
surfaces such as the monitor screen or the desk top. The glare that direct or reflected light
causes can result in eye strain and poor performance. Our eyes are especially sensitive to glare
from light sources in our peripheral vision. For this reason, it is important to evaluate all light
sources from the worker's perspective. Glare is best prevented at thesource, and so many of the
steps which reduce light levels will also help to reduce glare. For information on reducing glare
on the monitor screen itself, see the Environment section of the Analysis and Implementation
Guide.
9. Lighting common use areas
The need to control the amount of available light is not limited to an individual workstation.
Common use areas, such as copy rooms and areas where there are file cabinets, may require
more available light. In general, any time when someone has to read small print, visually inspect
something, or search for something, higher light levels are appropriate.
Temperature and humidity
As with lighting, the temperature and humidity levels in the office affect not only comfort, but also
productivity.
Most office work is done while seated, and the low level of physical activity means that employees will
typically prefer a slightly higher temperature than if they were active. However, offices can get too
warm when the number of people and amount of heat producing equipment overwhelms the
ventilation system. Problems can also be caused by installing cubicle or hard-wall offices where they cut
off the normal flow of air through the building. Uncomfortably high temperatures can cause fatigue,
which can then lead to awkward postures such as slouching or slumping in the chair.
Problems with low temperatures are typically localized, such as when an individual employee's office
has been placed directly under a cooling vent. The cool air blowing directly down can cause cold feet
and hands, as well as increased muscle tension and increased risk for tendinitis.
Humidity levels are also important to comfort and health. Too low a level of humidity results in dry skin,
especially when handling paper, and can increase the amount of force used as sensation through the
fingertips is reduced. Too much humidity can lead to a "stuffy" feeling and can make the temperature
seem higher than it actually is. It can also have an effect on actual or perceived indoor air quality.
Noise
Noise in the office almost never reaches a level where it is harmful to our hearing, but it can be a
distraction that is detrimental to performance and productivity. Studies have shown that noise is most
disruptive when workers are performing tasks that are mentally demanding, require attention to detail,
or rely on spoken communication.
Conversation can be especially distracting, since it is harder to filter out than random noise.
While you can have a consultant come in to take measurements with a sound level meter, a simpler
method is to use your own judgment regarding noise levels. Also, ask employees if they have any
concerns about noise, or if it interferes with communication or creates a distraction.
There are a few simple steps that you can take when a noise problem arises:
10. • Reduce or eliminate noise at the source whenever possible.
• Maintain equipment to prevent noisy malfunctions.
• Isolate or enclose equipment that generates noise even when it's in good repair.
• Have conference rooms available for meetings and conversations.
Conclusion
As the conclusion, there are many ways to solve this ergonomic problem. First of all ,we must try to
place our work so that we can sit in a comfortable position while we do it. Beside, try not to put too
much stress on one area of our body, such as our lower back or arms. We also must change your
position often. After that, turn with your whole body instead of twisting to face your work.Take breaks
to stretch or get out of your chair every 20 to 40 minutes. If you can, switch to another task.
By control work sit (Seated control work)
Use flexible seat that support our back and seat.
Provide place that is comfortable for control work.
Use control equipment that fulfilling standard.
Posting control centre to exist view that is clear between work with employee.
Provide ladder if workplace more than 14 inches from ground level.
Work with VDT(WorkwithVDTs)
Put properly keyboard.
Governing method high table.
Governing method high keyboard.
Encourage employee press softly key.
Evade from staff using armrest.
Put mouse in place that is readily accessible.
Throw dust in mouse balls.
Put VDT in height and distance that is suitable.
Lessen screen beam.
Lessen light rays
Throw dust in VDT screen
Evade from insert telephone receiver
Rest a while when type