جستجوی مقالات مرتبط با کلیدواژه « اختلالات اسکلتی-عضلانی ناشی از کار » در نشریات گروه « پزشکی »

Work-related musculoskeletal disorders (WMSDs) are a prevalent occupational health concern, influenced by both physical and psychosocial factors. Valid questionnaires offer a cost-effective and efficient means of evaluating WMSDs. This study aimed to validate the Persian version of the MDRF questionnaire, assess its applicability in Iran, and investigate the prevalence of WMSDs among employees in an automotive industry.

This descriptive cross-sectional study was conducted among 100 employees (50 production line workers and 50 office workers) in Kerman province. The linguistic validity of the questionnaire and its translation were ensured using the Backward-Forward method. Content validity was assessed through CVI and CVR indexes. To evaluate the questionnaire’s reliability and agreement, Cronbach’s alpha and ICC were employed. User responses from the first and second series of the questionnaires were validated using Kappa and Spearman’s tests.

Results indicated high reliability which was achieved by Cronbach’s alpha and ICC values of 0.960 and 0.925, respectively. The questionnaire’s validity was acceptable based on CVR and CVI tests. The prevalence of WMSDs was the highest in the lower back for both production line and office workers over the past year. The job satisfaction factor exhibited the highest risk level among the questionnaire’s four subgroups. Approximately 85% of participants were classified as having a high or very high-risk level, reflecting concerning conditions among the employees. The prevalence of WMSDs in different body parts significantly correlated with all physical and psychosocial stress factors.

This research highlights the influence of diverse physical and psychosocial risk factors on the occurrence of WMSDs among both occupational workers and office employees. Also, the MDRF questionnaire, whose high applicability in assessing the WMSDs risk factors was proven in this study, is an effective tool for prioritizing, planning, and executing educational and preventive measures within the workforce community to mitigate and prevent WMSDs.

Low mobility and muscle weakness are increasing musculoskeletal disorders (MSD) in many individuals. Therefore, the present study aimed to investigate the effect of 8-week resistance exercises on reducing the prevalence of the symptoms of MSD in the neck, shoulders, wrists, and back among the teachers of Bardaskan, Iran.

Firstly, a total of 384 subjects were randomly selected from the school teachers of Bardaskan, and demographic and Nordic questionnaires were completed for all of them. Then, the prevalence of the aforementioned symptoms in each of the studied organs was evaluated. Accordingly, 80 eligible individuals were identified for this study according to the inclusion criteria and allocated to two intervention (n=40) and control (n=40) groups. In addition, forms of A (i.e., intervention) and B (i.e., control) were used for the random assignment of the groups. The Nordic questionnaire was completed for both groups 24 h before the intervention. After the termination of the 2-month intervention period and 24 h after the last exercise session, the Nordic questionnaire was again completed for both groups. For the result comparison, the GEE statistycal test was used.  

The results of the examined hypotheses showed that that resistance exercises had no significant effects on reducing the prevalence of the symptoms of MSD in the neck, shoulders, wrists, hands, buttocks, and back of school teachers, compared to that reported for the last year and 2 months (P>0.05); however, these exercises significantly decreased the severity of the pain in the intervention group over the last 7 days (P<0.05).

Due to the low impact of resistance training, it is recommended to carry out further studies on redesigning the exercise plan, changing the type and the duration of exercises, or increasing the sample size in order to relieve the pain in the studied regions.