Upper and lower crossed syndromes among computer and manual material handling workers in an oil and gas company
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Computer use and manual material handling (MMH) are both occupational risk factors for musculoskeletal disorders. These include pain, muscle imbalance and tension in nervous system. The study aims to compare pain area, muscle imbalance and neural tension between both kinds of workers. Participants were 42 computer users and 34 MMH workers. They had no history of cardiorespiratory disorders, musculoskeletal or neuromuscular deficits, fracture and operation. Demographic data and body pain area were collected by a questionnaire. Physical examinations were muscle length, strength and neurodynamic tests. There are significant higher percentage of neck and upper back pain, tightness of pectoralis major muscle, positive results in upper limb neurodynamic test of median nerve and slump test, lower strength of middle trapezius, hip flexor and adductor muscles in computer users when compared to MMH workers. The current study suggests that computer users may be at risk of neck and upper back pain, upper cross syndrome, and neural tension.
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