A guide for computer keyboard users … assembly-line workers, computer users, automotive computer repair help workers, and many others
Thousands of people also suffer from the so-called ‘mouse syndrome’. To avoid this it is recommended that the design of this fits the curve of your hand, you do not need excessive pressure for action and sliding with ease. Can also be useful mats with a support pad for the wrist, so that the correct hyperextension forced.
In the study conducted with 180 volunteers assessed the utility of an ergonomic mouse with a special ‘Trackball’, a sort of ball that allows move the cursor without moving the mouse in the table. Contrary to what predictable, participants also had fewer problems and musculoskeletal pain in the left limb, an unexpected finding because 98% of participants used the mouse with his right hand. The authors believe that this is difficult to explain, although it could be because the availability of ‘Trackball’, abuse under his left hand when using the keyboard.
Occupational health
The absence from work due to illness involving Spain in losses valued at between 1% and 4% of GDP. The model of occupational diseases is changing; alongside classics such as labour problems caused by chemical agents, experts have detected an increase of new ailments resulting from the use of computer hardware support, such as back pain or addiction to the Internet. A person who works with computer runs daily between 12,000 and 33,000 head and eye movements, the pupils react 4 to 17 thousand times and also tend to run about 30,000 keystrokes. They are small movements that pass almost unnoticed but which, if not carried out under favourable conditions, can trigger problems.
One of the most frequent causes that generates musculo-skeletal injuries are known as Cumulative Trauma Disorders (CTD), is small ‘trauma’ repeated, caused by a movement reiterated. They occur in all types of workplaces, from packing up plants in offices. According to the latest statistics on this issue, disorders associated with repeated trauma account for about 46% of all occupational diseases, and cost businesses more than 800 million euros.
The modern diseases cause a reduction in performance and a large number of sick leave. An estimated eight million Europeans have health problems related to their work. New technologies carry new health problems by working what to learn how to use these tools work. This is born ergonomics that science is studying optimization Comprehensive man-machine systems, and in this case, the adaptation of computer skills and conditions of those who you use.
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