some machines,equipment pieces,tools or devices that are used commonly by humans

Question

some machines,equipment pieces,tools or devices that are used commonly by humans contribute significant risk of Musculoskeletal Disorders(MSDs).I want you to identify one such tool or device that you are personally familiar with that has significant MSD risk factors for someone who might use that tool or device on a frequent and long term basis.Once you've identified such a tool or device answer each of the following two questions

1) what are the main risk factors for MSDs associated with everyday use of the tool or device system you have studied?what level of risk do you think each risk factor represents to the user?Did anything suprise you about what you discovered?

2) can you think of some interesting ways to reduce or control one or more significant risk factors you've identified for this device or tool system?

Explanation / Answer

Device : mobile phones

1)Main risk factors associated are fatigue and pain in thumb, wrist, elbow (due to continuous gripping and texting) and in neck and shoulder (due to improper posture)

49% of people suffering from pain due to hand held devices were found to use smartphones extensively.

Out of these 58% complained of pain in right side as compare to left

I was pretty shocked when I came across this fact as I had never pondered as to how a small device a phone could cause such chronic conditions.

2) using joystic, mobile holders (bench top or wall stuck), using voice commands to navigate in your smartphone

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