Article

Follow‐up of neck and shoulder pain among sewing machine operators: The Los Angeles garment study

Department of Family Medicine, David Geffen School of Medicine, University of California, Los Angeles, California
American Journal of Industrial Medicine (Impact Factor: 1.59). 04/2009; 53(4):352 - 360. DOI: 10.1002/ajim.20790
Source: PubMed

ABSTRACT Background
The aim of the present study is to explore factors affecting or modifying self-reported neck/shoulder pain in sewing machine operators.Methods
We investigated self-report neck/shoulder pain in 247 workers who participated in a 4-month prospective intervention study for musculoskeletal disorders. All participants were immigrants. We examine the influence of individual and work-related factors on changes in neck/shoulder pain during follow-up employing linear mixed models with time-spline functions.ResultsWe observed a dramatic decline (72%) in self-reported pain intensity in the first month of follow-up, followed by a small increase from the first to fourth month (4% per month). Workers who perceived and reported their physical workload as high or worked overtime experienced less overall pain reduction. Higher baseline pain intensity, being of Hispanic ethnicity (vs. Asian), and taking cumulative daily rest time during work of 35 min or more allowing for muscles to rest were associated with a larger pain reduction in the first month, but not thereafter.Conclusion
Our findings indicate that some work-related factors may be of clinical relevance for reducing neck/shoulder pain. Having lower physical workloads and less overtime work should be considered when treating patients or planning workplace interventions for managing work-related musculoskeletal disorders in this underserved immigrant population. Am. J. Ind. Med. 53:352–360, 2010. © 2009 Wiley-Liss, Inc.

Download full-text

Full-text

Available from: Jason Wang, Jul 03, 2015
2 Followers
 · 
103 Views
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The aim of this study was to investigate the effect of scapular muscle endurance on chronic shoulder pain in textile workers. In total, 91 textile workers were divided into two groups based on the presence (n=43) or absence (n=48) of chronic shoulder pain, as assessed using the Nordic Musculoskeletal Questionnaire (NMQ). The endurance of the serratus anterior and trapezius muscles was assessed using the Scapular Muscle Endurance (SME) test. In the group with chronic shoulder pain, mean scapular muscle endurance was significantly lower than that in the pain-free group (t-test, p< 0.05). There was a significant negative correlation between rest - activity pain intensity and SME (Pearson correlation analysis, p< 0.01). Scapular muscle endurance has an effect on the development of shoulder pain in textile workers.
    Journal of Back and Musculoskeletal Rehabilitation 01/2013; 26(1):25-31. DOI:10.3233/BMR-2012-0346 · 1.04 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: This cross-sectional study aimed to identify the prevalence of musculoskeletal symptoms and ergonomic risks in female sewing machine operators at a textile company. The study sample comprised all female sewing machine operators in the company. The sample included 283 sewing machine operators. Data were collected through the use of the adapted Nordic Musculoskeletal Questionnaire and by direct observations via the rapid upper limb assessment (RULA) to determine ergonomic risks. RULA is a validated tool for assessment of ergonomic risks. The mean age of the women was 30.2 (SD: 8.4) and the mean number of years of employment was 13.4 (SD: 5.5). The highest prevalence rates for the women’s musculoskeletal symptoms were in the trunk (62.5%), neck (50.5%), and shoulder (50.2%). Of the women, 65% had experienced musculoskeletal pain or discomfort over the last 6 months. Pain intensity of these symptoms was assessed with a visual analogue scale. The average pain intensity of the women was found to be 3.5 (SD: 2.8). Results of the RULA scores were found to be quite high. There were no employees who received RULA scores of 1–2, which indicates acceptable postures (all scores >5). The final RULA scores of 6.9 indicate that the participants’ postures at their work stations need to be investigated immediately.
    International Journal of Industrial Ergonomics 11/2011; 41(6):585-591. DOI:10.1016/j.ergon.2011.07.001 · 1.21 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: To assess the prevalence of musculoskeletal symptoms and their association with sociodemographic risk factors among female garment factory workers in Sri Lanka. 1058 randomly selected female garment factory workers employed in the free trade zone of Kogalla, Sri Lanka were recruited to complete two interviewer-administered questionnaires assessing musculoskeletal symptoms and health behaviors. Musculoskeletal complaints among female garment workers in the FTZ of Kogalla are less common than expected. Sociocultural factors may have resulted in underreporting and similarly contribute to the low rates of healthcare utilization by these women. 164 (15.5%) of workers reported musculoskeletal symptoms occurring more than 3 times or lasting a week or more during the previous 12-month period. Back (57.3%) and knee (31.7%) were the most common sites of pain. Although most symptomatic women reported that their problems interfered with work and leisure activities, very few missed work as a result of their pain. Prevalence correlated positively with increased age and industry tenure of less than 12 months. Job type, body mass index, and education were not significant predictors of musculoskeletal symptoms.
    International journal of occupational and environmental health 07/2012; 18(3):210-9. DOI:10.1179/1077352512Z.00000000029 · 1.10 Impact Factor