Paper Information

Journal:   ACTA MEDICA IRANICA   SEPTEMBER-OCTOBER 2007 , Volume 45 , Number 5; Page(s) 405 To 414.
 
Paper: 

WORK RELATED MUSCULOSKELETAL DISORDERS OF THE UPPER LIMBS AMONG STEEL INDUSTRY POPULATIONS

 
 
Author(s):  MOUSAVI NAJARKOLA S.A.*, KHAVANIN A.
 
* DEPARTMENT OF OCCUPATIONAL & ENVIRONMENTAL HEALTH, SCHOOL OF MEDICAL SCIENCES, TARBIAT MODARES UNIVERSITY (TMU), TEHRAN, IRAN
 
Abstract: 

For high occurrences of upper extremity disorders in working populations and in order to compare the occurrence of musculoskeletal alterations due to ergonomic risk factors such as highly force exertion, repetition, awkward posture between exposed and non-exposed groups, the research was carried out in Tabarestan steel industry. All 526 male workers (316 as exposed group: 132 aged 20-35 years, 184 aged>35 years; 210 as Non-exposed group: 89 aged 20-35 years, 121 aged>35 years) performing tasks exposed/not exposed to risk factors for WMSDS of the upper limbs underwent a clinical examinations as well as completing standardized Nordic Musculoskeletal Questionnaires. The anamnestic cases were defined on the basis of pain, par aesthesia, hyposthenia, and vegetative disorders during previous months. Mean age of exposed and non- exposed groups were obtained 36.3 years (SD=5.9) and 37.9 years (SD=7.3) respectively. There were distinguished differences in occurrences of WMSDS of upper limbs between two mentioned groups. The major occurrence was found for the right and left hands. Nocturnal and diurnal par aesthesia obtained an occurrence of about 54% and 53% respectively. Data bears witness to the greater occurrence of affected individuals in exposed group, with a non- exposed / exposed ratio of 1:7.2. The greater occurrences of affected individuals in exposed group (P=0.006) and in subjects>35 years (P=0.002) were significant. Structural, organizational and educational measures can be applied to prevent WMSDS or diminish the relative effects to acceptable limit.

 
Keyword(s): WORK-RELATED MUSCULOSKELETAL DISORDERS, NORDIC MUSCULOSKELETAL QUESTIONNAIRE, UPPER EXTREMITY DISORDERS, ERGONOMIC RISK FACTORS, FORCE EXERTION, REPETITION, AWKWARD POSTURE
 
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