Investigation of musculoskeletal symptoms in a manufacturing company in Brazil: a cross-sectional study

Hembecker, Paula Karina; Reis, Diogo Cunha dos; Konrath, Andréa Cristina; Gontijo, Leila Amaral; Merino, Eugênio Andrés Díaz

doi:10.1016/j.bjpt.2017.03.014

Cited by 35 publications

(21 citation statements)

References 34 publications

(60 reference statements)

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“…diagnoses) at the elbow, forearm and/or wrist were found in 56% (39/70), of which 12/20 (70%) grinders, 14/24 (54%) packers and 13/26 (42%) control persons. These results are consistent with previous studies showing a prevalence rate of symptoms between 21% and 71% in the study group and between 6% and 50% in the control group [34][35][36][37][38][39][40][41][42][43][44][45][46]. With regard to diagnoses, existing studies report a prevalence between 21% and 56% in the study group compared to 5-22% in the control group [35,36,38,39,40,42].…”

Section: Discussionsupporting

confidence: 92%

Predictors for Outcomes related to upper Extremity Musculoskeletal Disorders in a healthy Working Population: a methodological Approach

Lotter¹,

Lieb²,

Molsner³

et al. 2020

Preprint

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BackgroundTo investigate the association between different clinical endpoints and the presence of upper extremity work-related musculoskeletal disorders (WMSDs) in a healthy working population. Furthermore, the influence of socio-demographic, work-related and individual predictors on different endpoints was examined.MethodsTwo self-completion questionnaires were administered to 70 workers and employees. In addition, a standardized physical examination and an industry test were performed in this cross-sectional study. Correlations between WMSDs and clinical endpoints were analysed with the Spearman method. Depending on the type of dependent endpoint, linear or logistic multivariate regression models were used to study the strength of associations with a pre-defined set of potential influencing factors.ResultsThe prevalence of WMSDs was 56% (39/70). Correlations between WMSDs and the DASH score / pain under strain (VAS) were by far the strongest ones. Independent predictors could not be identified as risk factors for WMSDs, but there was some correlation between these factors.ConclusionsThe DASH score, used in the primary analysis of the study data, remains a close candidate for best surrogate endpoint for WMSD detection. The VAS has to be examined for this role in further research. Our analysis should help to improve the methodological quality of future occupational health studies through improved standards.Trial registrationThis study was registered at ClinicalTrials.org with the identifier NCT03014128, on January 9, 2017.

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Section: Discussionsupporting

confidence: 92%

Predictors for Outcomes related to upper Extremity Musculoskeletal Disorders in a healthy Working Population: a methodological Approach

Lotter¹,

Lieb²,

Molsner³

et al. 2020

Preprint

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show abstract

“…The respondents do not do heavy work (70%) and play sport (70%), which showed that all the respondents are physically healthy and have had enough sleep. This was supported by the previous study done by Hembecker, Reis, Konrath, Gontijo, and Merino (2017), who stated that sleep disorders could indicate another musculoskeletal problem among the workers. The reduced amount of sleep can cause a lot of tiredness and can lead to muscle discomfort and fatigue.…”

Section: Discussionsupporting

confidence: 81%

Calf massager: Intervention for body muscle discomfort during prolonged standing

Ramalingam

Karuppiah

Ramaiya

et al. 2019

Hum Ftrs & Erg Mfg Svc

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Many occupations require workers to stand for long periods of time without proper interventions, which causes discomfort in the back and lower limbs. Therefore, this study aims to assess the effectiveness in alleviating body muscle discomfort during prolonged standing through the use of a calf massager. This study was conducted among male workers at a manufacturer with production line workers and the list was obtained from the HR Department and simple random sampling was done by number categorization. A total of 100 respondents (50 respondents for both the control and the experimental groups) participated in this study. The experiment took place in a room with a similar setup for the production line. Each respondent was requested to perform the simulated task for 2 hr. For the experimental group, the calf massager was turned on every 15 min. At every 15‐min interval after turning on the calf massager, respondents from both groups were required to evaluate their discomfort level on a Borg's scale CR‐10 questionnaire. The results showed that the level of body discomfort among respondents in the experimental group reduced (20–30%) compared with that of the control group. Multivariate analysis results revealed that the discomfort rating for the lower back, knees, thighs, calves, and feet was significantly lower (p < .05) among the experimental group compared with the control group. For lower body parts, the lower back region was statistically significant (p < .05) at the 90th, 105th, and 120th min; the thigh region was statistically significant (p < .05) at the 120th min; the knee region was statistically significant (p < .05) at the 105th and 120th min; the calf region was statistically significant (p < .05) at all minute intervals except the 15th and 45th min, while the feet region, was statistically significant at the 105th and 120th min. Therefore, this study indicates that calf massage treatment is capable of reducing body muscle discomfort during prolonged standing and highlights the significance of calf massage.

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“…The design of our cross-sectional study with a control group, physical examination of the subjects, and the use of a questionnaire can be found in several studies related to different industries. Our literature research showed a prevalence of upper extremity pain (i.e., symptoms) of between 21% and 71% in the study group and between 6% and 50% in the control group [56][57][58][59][60][61][62][63][64][65][66][67][68]. This is in line with our investigation where symptoms were reported in the first questionnaire by 8/20 (40%) grinders, 14/24 (58%) packers, and 11/26 (42%) people in the control group.…”

Section: Prevalence Of Symptoms and Diagnosessupporting

confidence: 90%

Is Repetitive Workload a Risk Factor for Upper Extremity Musculoskeletal Disorders in Surgical Device Mechanics? A Cross-Sectional Analysis

Lotter¹,

Lieb²,

Breul³

et al. 2020

IJERPH

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To assess the prevalence of upper extremity work-related musculoskeletal disorders (WMSDs) among surgical device mechanics compared to a control group, a total of 70 employees were included and assigned to three occupational groups (grinders, packers, and control). Personal factors, work exposure, manual skill, and complaints were assessed by two self-administered questionnaires and an industry test. WMSDs were diagnosed in a standardised clinical examination. The two-one-sided t-tests (TOST) procedure was used to test the clinical equivalence of the respective grinding and packaging groups vs. the control group in terms of the Disabilities of the Arm, Shoulder and Hand (DASH) score. Thirty-nine study participants (56%) experienced at least one WMSD at the elbow, forearm, and/or wrist, mainly with signs of epicondylitis and nerve entrapment at the medial elbow. The risk of grinders developing upper extremity WMSD was about 2.5-times higher and packers had an 8.6-fold higher risk of a clinically relevant DASH > 29 compared to the control group. However, these differences were not statistically significant. The groups were also proven to be clinically equivalent in terms of DASH score. Surgical device mechanics do not seem to have worse DASH values or be at higher risk of upper limb WMSDs compared to a control group. This is the first study to analyse and compare different workplaces in this industry that are also common in other industries.

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Investigation of musculoskeletal symptoms in a manufacturing company in Brazil: a cross-sectional study

Cited by 35 publications

References 34 publications

Predictors for Outcomes related to upper Extremity Musculoskeletal Disorders in a healthy Working Population: a methodological Approach

Predictors for Outcomes related to upper Extremity Musculoskeletal Disorders in a healthy Working Population: a methodological Approach

Calf massager: Intervention for body muscle discomfort during prolonged standing

Is Repetitive Workload a Risk Factor for Upper Extremity Musculoskeletal Disorders in Surgical Device Mechanics? A Cross-Sectional Analysis

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