Personal Protective Equipment
One of the most controversial questions in the preventing MSDs is whether using PPE (such as wrist supports, back belts, or vibration attenuation gloves) is effective.
Ergonomics PPE devices may, in some situations, reduce the duration, frequency, or intensity of exposure, but evidence of their effectiveness in injury reduction is inconclusive. In some instances they may decrease one exposure but increase another because the worker has to "fight" the device to perform his or her work. An example is the use of wrist splints while engaged in work that requires wrist bending.
Back belts are sometimes provided as PPE, but they are controversial. Back belts have been studied extensively, and experts have concluded that they are not effective in preventing back injuries. Some believe that, in fact, they may cause injury by encouraging workers to lift heavier objects or by making muscles weaker. Most importantly, they do not make workers stronger or more able to perform a lift that is awkward or too heavy.
The National Institute for Occupational Safety and Health (NIOSH) recommends that employers not rely on back belts to protect workers. Instead, it recommends that employers implement a comprehensive ergonomics program that includes workplace assessment, hazard reduction, and worker training.
Less controversial types of personal equipment include:
- clothing that accommodates extreme temperatures
- hand, wrist, elbow, knee, and ankle supports
- vibration attenuation gloves, and
- knee pads for carpet layers
There you have it! Almost everything you need to know about ergonomic control strategies, right? Well, not quite, but you do have a good introduction to them. Remember, ergonomics control strategies may not be immediately obvious. If you can't figure out an effective solution, don't forget to take advantage of an outside expert. Participating in the consultation process with an ergonomist is a real win-win for your company and an excellent education for you.
Knowledge Check Choose the best answer for the question.
5-5. The most controversial ergonomics practice is the use of _____ as personal protective equipment.
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