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Influence of the long term use of a computer on median, ulnar and radial sensory nerves in the wrist region

100%

Bamac B., Colak S., Dundar G., Selekler H. M., Taşkiran Y., Colak T., Balci E.

International Journal of Occupational Medicine and Environmental Health

2014

vol. 27

issue 6

1026-1035

Objectives: Repetitive microtrauma or overuse injuries may often affect upper extremities of the long term computer users. The aim of this study was to compare sensory nerve conduction velocities (SNCV) for median, radial and ulnar nerves in the wrist of computer users with the same parameters in controls who do not use computers regularly. Material and Methods: Twenty one male computer users (age: mean (M) = 28.3 years ± standard deviation (SD) = 7.5 years) and 21 male control subjects (age: M±SD = 24.1±4.6 years) were recruited for the study. Limb length and the perimeters of the dominant arm and forearm were measured for each subject. The neurophysiological study consisted of measuring sensory nerve conduction of the median, ulnar and radial nerves. Results: The sensory conduction velocities of both median and ulnar nerves were significantly delayed in the dominant arm of the computer users compared to the controls. In addition, sensory conduction velocity of the median nerve was significantly delayed in the dominant extremity of the computer users compared to their non-dominant extremity. Conclusions: This study shows that computer users have a tendency toward developing median and ulnar sensory nerve damage in the wrist region. Mechanism of delayed SNCV in the median and ulnar nerves may be due to sustained extension and ulnar deviation of the wrist during computer mouse use and typing. Reduced SNCV changes were more apparent on the dominant side of the median nerve. This may indicate the increased neural deficits related to an increased use of the dominant side. Further investigation is needed to determine how to reduce potential risk factors at this stage in order to prevent development of median or ulnar neuropathy in the long term computer users.

Determination of pain in musculoskeletal system reported by office workers and the pain risk factors

86%

Celik S., Celik K., Dirimese E., Taşdemir N., Arik T., Büyükkara İ.

International Journal of Occupational Medicine and Environmental Health

2017

vol. 31

issue 1

91-111

Objectives: This research was conducted as a cross-sectional descriptive study aimed at determining the existence of pain in the musculoskeletal system among office workers and the reasons for it. Material and Methods: The sample consisted of 528 office workers. Collection of data was achieved using a questionnaire prepared by the researchers in line with information from the literature. Results: The male and female office workers most frequently complained of pain in the lower back (55.1%), neck (52.5%) and back (53%). It was seen that out of the variables relating to the work environment, those which had the most significant effect on muscular-skeletal system pain were sitting at the desk for a long time without a break, working sitting on a chair that supported only the lumbar area and the arms, having the computer mouse at a distance from the keyboard, having the head inclined at 45° when working, working holding both forearms above the level of the desk, not taking exercise in daily life, and having a moderate or extremely stressful workplace (p < 0.05). Conclusions: The conclusion has been reached in this study that in order for office workers not to suffer musculoskeletal system pain, it is very important that the working environment should be ergonomically arranged and that various measures should be taken to ensure healthy life behavior. Int J Occup Med Environ Health 2018;31(1):91–111

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2 International Journal of Occupational Medicine and Environmental Health

1 Arik T.

1 Balci E.

1 Bamac B.

1 Büyükkara İ.

1 Celik K.

1 Celik S.

1 Colak S.

1 Colak T.

1 Dirimese E.

1 Dundar G.

1 Selekler H. M.

1 Taşdemir N.

1 Taşkiran Y.

1 2017

1 2014

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Influence of the long term use of a computer on median, ulnar and radial sensory nerves in the wrist region

Determination of pain in musculoskeletal system reported by office workers and the pain risk factors