An investigation of the prevalence of work-related musculoskeletal pain and related disability among poultry slaughterhouse workers: a cross-sectional study.

PURPOSE: The poultry slaughterhouse workers (PSW) are at substantial risk of developing work-related musculoskeletal pain (WMSP) at workplace due to their work. This study investigated the prevalence rate of WMSP and related disability among the PSW. METHODS: A cross-sectional descriptive study was conducted among 78 PSW (40 women and 38 men) in the region of northern Thailand. The prevalence rate of WMSP was evaluated using the Standardized Nordic Musculoskeletal Questionnaire (SNMQ). The disability related to the MSP was evaluated using a series of disability questionnaires. Descriptive statistics were used to evaluate the WMSP. Data on the disability were summarized in frequency, mean (M), standard deviation (SD) and percentage. RESULTS: The prevalence rate of WMSP in the past 7 days were higher in the shoulder region (61.5%, N = 48) followed by wrists/hands (60.3%, N = 47), and lower back region (35.9%, N = 28). The WMSP over the past 12 months was also high at the shoulder (61.5%, N = 48), wrists/hands (60.3%, N = 47), and neck region (37.1%, N = 29), respectively. The overall disability related to WMSP among PSW was found to be mild to moderate across different body regions. CONCLUSIONS: PSW had a high prevalence rate of WMSP in the shoulders, wrists/hands, lower back, and neck regions. However, the PSW with WMSP reported only mild to moderate disability in the work.

Effects of Massage as a Combination Therapy with Lumbopelvic Stability Exercises as Compared to Standard Massage Therapy in Low Back Pain: a Randomized Cross-Over Study.

BACKGROUND: Little is known about the effects of providing massage as a combination therapy (CT) with lumbopelvic stability training (LPST) in management of chronic nonspecific low back pain (CLBP) among elite female weight lifters. It is unclear whether massage therapy (MT) together with LPST has any additional clinical benefits for individuals with CLBP. PURPOSE: The current study compares the therapeutic effects of CT against MT as a stand-alone intervention on pain intensity (PI), pain pressure threshold (PPT), tissue blood flow (TBF), and lumbopelvic stability (LPS) among elite weight lifters with CLBP. SETTING: The study was conducted at the campus for National Olympic weight lifting training camp. PARTICIPANTS: A total of 16 professional female elite weight lifting athletes who were training for Olympic weight lifting competition participated in the study. RESEARCH DESIGN: A within-subject, repeated measures, crossover, single-blinded, randomized allocation study. INTERVENTION: The athletes were randomized into three sessions of CT and MT with a time interval of 24 hrs within sessions and a wash out period of four weeks between the sessions. MAIN OUTCOME MEASURES: The PI, PPT, TBF, and LPS were measured before and after each session repeatedly in both groups of intervention. The changes in the PI, PPT, TBF, and LPS were analyzed using repeated measures analysis of variance (ANOVA). RESULTS: The results showed that the CT significantly demonstrated greater effects in reducing pain perception (45%-51%), improving pain pressure threshold (15% up to 25%), and increasing tissue blood flow (131%-152%) than MT (p < .001). CONCLUSION: The combination therapy of massage therapy and LPST is likely to provide more clinical benefits in terms of PI, PPT, and TBF when compared to massage as a stand-alone therapy among individuals with chronic nonspecific low back pain.