Category Archives: Ergonomics

LOOKING OUT FOR #1!

There aren’t many jobs in this world that don’t have a certain amount of risks involved.  Sure, a steelworker has a more dangerous job than a secretary sitting behind a desk!  But there are many hazards in even an office.  Tripping over wires, file cabinet drawers being left out, are just a few of the dangers lurking in an office.  It’s up to the individual to be safe.

Those who must wear Personal Protective Equipment, or PPE, have the responsibility of wearing it in the correct way, and not removing it while working.  Companies train employees in the proper use of PPE in relation to their job duties.  Employees should pay attention to the training they are given, and to the risks they encounter on an every-day basis.

Injuries occur at work, but many times they can be avoided.  Watching out for both yourself and the other guy will pay off.  Know your job hazards.  If you pay attention to your job, use common sense, avoid distractions, and follow company policies, hopefully you will go through your entire work experience without a scratch.

PPE is there for a reason:
There are many types of Personal Protective Equipment for hundreds of uses, but remember, it works best when used properly.  Your company can buy it for you, but it’s up to you to wear it and take care of it.  Be sure it fits comfortably.  If something becomes worn, report it to your supervisor, so it can be replaced.  Certain jobs at home require types of PPE, whether to protect your eyes with safety glasses or goggles while mowing the lawn, working in the shop, or wearing gloves when gardening.  Taking the time to put on a pair of gloves, glasses, or whatever is needed is the best way to be safe.  Whether your tasks are at home or work, play it safe!  Know your equipment and protect yourself at all times.

THE IMPORTANCE OF KNOWING WHAT WENT WRONG

One of the worst things that can happen to any business is for an employee to be injured on the job.  (It goes without saying, that it’s also a very unfortunate event for the employee.) Workers have the right to know exactly what is expected of them in their daily job performance.  They should be informed of any hazards associated with their duties and properly trained before beginning their job, and given the proper personal protective equipment that is required to ensure their safety.

Efficient businesses have policies and procedures, which should include a proper accident investigation and reporting plan.  Prevention, of course, is the key to avoiding accidents, but when they happen, someone must be assigned to be responsible in determining how and why the injury occurred.   Insufficient reporting of work-related accidents will lead to higher costs for employers.  It also must be reported to company management and workers comp providers in an accurate and timely manner.

Lost time accidents are costly to employers.  According to Cal/OSHA, for every dollar a company spends on direct costs of a workers’ injury, more dollars are spent to cover the hidden and indirect costs, such as:

  • Productive time lost by the injured employee;
  • Productive time lost by employees attending the accident victim;
  • Time to hire/retrain employee while victim is off work;
  • Clean up and start up of operations that were interrupted;
  • Paying employee all or part of wages, in addition to compensation;
  • Cost to repair damaged equipment;
  • Higher workers compensation rates;
  • Cost of paperwork involved in reporting accident.

Employers that do not furnish safe and healthful work practices for their workers are gambling with the future of their very own business.  Hazard assessments, risk management, and safety programs are essential for ensuring successful business practices for everyone involved.

Another angle to consider, as well, is that a thorough accident investigation will prove that the injury did occur on the job, and not elsewhere.  History shows that there are people in this world that will take advantage of their employer and sue them for an on-the-job injury that happened somewhere else.

SAFETY FIRST IN WAREHOUSING

According to OSHA, statistics show that more than 145,000 people work in over 7,000 warehouses.  The fatal injury rate for the warehousing industry is higher than the national average for all industries.  Some of the potential hazards for workers in warehousing are: unsafe use of forklifts; improper stacking of products; failure to use proper personal protective equipment; inadequate fire safety provisions; and poor respiratory protection.

  • Docks are locations where products fall on employees, forklifts run off the dock, or equipment strikes a fellow worker.
  • About 100 employees are killed and 95,000 injured every year while operating forklifts in all industries.  Operators should be properly trained, and anyone under 18 years old should never be allowed to operate a forklift.
  • Injuries happen when workers are caught in pinch points when working around conveyors.  Proper lighting and working surfaces assist in providing safety in the conveyor area.
  • Improperly stored materials may fall and injure workers.
  • If hazardous materials are present, chemical burns are possible.  Provide proper personal protective equipment and enforce its use.  All chemicals should be stored safely and securely.
  • Charging Stations need to have fire extinguishers available and ready; prohibit smoking.  PPE, such as nitrile gloves, and eye and face protection should be worn around charging stations, and an eyewashing and safety shower facility should be provided for employees exposed to battery acids.
  • Improper lifting, repetitive motion or poor design of operations can cause musculoskeletal disorders in workers in warehouses. Floors should be kept clean and free from trip/slip hazards.  Provide general ergonomics training.

The jobs that are performed in warehouses require skill in lifting and observing safety procedures at all times.  Employees should have proper training and be aware of the many hazards lurking in warehouses.

CARPAL TUNNEL SYNDROME

The definition of Carpal Tunnel Syndrome by the National Institute of Neurological Disorders and Stroke is a “painful, progressive condition caused by compression of a key nerve in the wrist.  The median nerve, which runs from the forearm into the hand, becomes pressed or squeezed at the wrist.  In some cases, there is no direct cause that can be identified as CTS, rather it is that the carpal tunnel is simply smaller in some persons than others.  However, the risk of developing this ailment is especially common in those performing such tasks as assembly line work.”

Others who may be considered at risk of developing CTS are:

  • Painters
  • Carpenters
  • Check-out Clerks
  • Drivers of trucks, taxis, and buses
  • Musicians
  • Accountants
  • Computer Operators
  • Typists
  • Those with hobbies such as needlepoint, knitting, gardening

Suggestions to those who think they have CTS are:

  • See a physician when symptoms first develop
  • Rest the wrists as much as possible, use ice to reduce swelling
  • Use proper ergonomics (science used to fit job to person’s anatomy and physiology)
  • Use stretching techniques
  • Change position often, get up and move around
  • Exercise your hands
  • Keep wrists straight while sleeping
  • Stay in good shape.  Eat right, sleep right, and try to maintain a healthy weight.
  • Take over the counter pain medication

Carpel Tunnel Syndrome is a very controversial topic.  Scientific data provided by NIOSH states that while symptoms of CTS are associated with incidents of wrist postures or highly repetitive manual acts, causation has not been established.  Also, the American Society of Surgeons of Hand has current literature that does not support a causal relationship between specific work activities and development of the disorder.  The strongest risk factor for CTS is structural and biological (genetic predisposition), rather than environmental and activity related.

Following a history and physical examination by a physician, the patient will probably be referred to be tested electrodiagnostically.  The most specific and reliable test is Combined Sensory Index, or Robinson index in order to determine if the diagnosis is Carpel Tunnel Syndrome or some other disorder.

Sources:
Wikipedia
NIOSH
National Institute of Neurological Disorders

There are arguments about CTS being caused by repetitive movement of the hand, as this disorder happens when inflamed tissues press against a major nerve in the wrist.  Pain, numbness, even in the arm, and weakness are symptoms.  According to many physicians, these symptoms are not CTS, and can be relieved by rest, change of position, splints, and over-the-counter painkillers.

ERGONOMICS – HEALTH CARE WORKERS

Healthcare workers – nurses, nurse aides, physical therapists, EMS personnel, etc., are in a league of their own.  Their work-day (or night) consists of assessing patient needs and providing treatment for them, many times under a great deal of stress.  The science of fitting the job to the worker is called Ergonomics.  When the physical capacity of the worker is mismatched with the physical requirements of the job, musculoskeletal disorders (MSDs) can happen.  Ergonomics is the practice of designing tasks and equipment to fit the capabilities of the worker in order to prevent injuries before they occur.

Health care workers, especially those in nursing homes, are in an environment where these types of stress exist.  Many patients/residents totally depend on staff members to assist them with most activities of daily living, such as bathing, dressing, etc.  Employee injuries can result due to multiple interactions when transferring/handling persons.

Management of healthcare facilities is responsible for developing a safety program to ensure the well being of both the patients/residents and employees.  Health care workers should be given the opportunity to be a part of the program planning process.  Workplace hazards could be identified through documenting the number of illness/injuries, reports of unsafe conditions, reports of back pain, and potential incidents.

Some lifting guidelines are:

  • Never lift alone
  • Never transfer patient/resident when you are off balance
  • Limit the number of lifts per worker per day
  • Provide proper training on how to use lift equipment
  • Do not lift when body is in a twisted position

Back and wrist supports, and elbow pads offer some relief from the stress and strain on the body while lifting.  It is important that family members who serve as caregivers in the home seek some type of training on lifting, in order to stay in good physical condition and protect the loved one they are caring for.

OSHA

Proper Lifting Techniques

We use our back every day, whether we realize it or not.  We twist, bend, push, pull, and lift all day long.  Most of us don’t pay much attention to the movements and back muscles involved in these everyday actions. That is, until we pull a muscle in our back and have trouble doing simple things like sitting, walking, or even getting in and out of bed.

According to the U.S. Dept. of Labor, there have been an average of nearly 270,000 reported back or spine injuries each year from 2003 to 2006.  Fortunately, these numbers are steadily decreasing(303,750 in 2003, down to 250,670 in 2006), so progress is being made.

Most injuries probably could have been avoided by paying a little more attention to what we are doing and how we are doing it.  Proper lifting techniques and using team lifting for heavier or awkward items help reduce the strain on your back muscles.

  • Keep objects close to your body: Carrying objects close to your body helps keep the “load center” in balance.  The farther from the body the item is, the more muscle strength needed to lift the item.  This forces the muscles to move in ways they are not designed to move, which can cause a strain or pull.
  • Bend your knees and keep your back straight: Focusing on keeping your back straight reduces the chances of twisting or bending in such a way that puts stress or strain on the muscles
  • Lift with your legs: Your leg muscles are designed to lift.  Using your leg muscles makes it easier to lift the item, as well as take the strain off your back.

Some jobs or hobbies require constant lifting and carrying.  In these situations, it may be helpful to utilize a back support. They come in many different styles and are fairly inexpensive($17-$36). When compared to the national average of around $9,000 per incident for non-surgery medical expenses ($30,000+ for injuries requiring surgery), $36 and a bit of prevention is well worth the time and cost.