Abstract
Background: Sedentary behavior carries the risk of musculoskeletal problems, especially in the lumbosacral region of the spinal column. According to modern lifestyle, this has begun to be a public health issue. Objective: To point to the health risks of working at the computer and present an ergonomic analysis of the typical and improved position of workers in front of the computer, thereby reducing the chances of emergence occupational diseases. Results: Changing the position of the subjects led to a change in lumbar pressure from 2,818 N/m2 to 351 N/m2. Software analysis of the changed position indicates that this position is acceptable, both for the lumbosacral region of the spine and for the abdominal muscles. Conclusions: A change in body position will decrease lumbar moment and the load on the lumbosacral region of the spine. Work chair with lumbar support, the right desk height, setting the appropriate position of the monitor, selecting the optimal keyboard and mouse, dividing the workspace into appropriate zones, as well as changing lifestyle and habits should be part of the management of people who spend most of their working time in a sitting position.
Highlights
ResultsChanging the position of the subjects led to a change in lumbar pressure from 2,818 N/m2 to 351 N/m2
Sedentary behavior carries the risk of musculoskeletal problems, ARDA.especially in the lumbosacral region of the spinal column
Software analysis of the changed position indicates that this position is acceptable, both for the lumbosacral region of the spine and for the abdominal muscles
Summary
In order to analyze the load in the lumbar region during raising and lowering the patient, a nurse model of body weight 62 kg, height 170 cm and 30 years of age was created (Fig. 1). Due to the unfavorable position of the body and the stated intensity of the load, the corresponding reactions occur both in the muscles and the skeletal system, and especially in the abdominal space, which responds with an increase or decrease in internal pressure. This pressure acts upward on the diaphragm, and downward on the bottom of the pelvis, while forward it acts on the abdominal muscles and on the back on the spine and lumbar muscles. The results of the analysis show a significant improvement in all segments This is reflected in the calculated torque in the L4-L5 zone, which is significantly reduced from the previous position (Fig. 7). We note that the result of the RULA analysis for the improved body position is favorable to the worker, with the Final Score of 2 (green color) and the message ‘Investigate and change immediately’
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