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Chen YN, Lee PY. Mechanical behaviors of titanium, nickel-titanium, and stainless elastic intramedullary nail in fixation of tibial diaphyseal fractures. Injury 2023; 54:111097. [PMID: 37845172 DOI: 10.1016/j.injury.2023.111097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/20/2023] [Accepted: 10/02/2023] [Indexed: 10/18/2023]
Abstract
INTRODUCTION Elastic nails have been widely used in the diaphyseal fracture fixation of long bones in adolescents. However, high complication rates have been reported in cases involving weights exceeding 55 kg. The existing nails are fabricated with different metals in clinical settings; however, the effect of the materials on the mechanical responses of the fractured bone remains unclear. Hence, the present study is conducted to compare the mechanical responses of typically used metals, namely titanium, stainless, and nickel-titanium, for elastic nails in the fixation of tibial diaphyseal fractures. MATERIAL AND METHODS A sawbone tube is used to determine the contact force, which is developed after constraining the nail inside the narrow canal using different nail materials. Furthermore, a finite element (FE) model of the tibial diaphyseal fracture is developed to predict the fracture gap deformation based on different nail materials under axial compression and bending loads. The push-out force in the FE simulation is compared with that of a case without an end cap. RESULTS In the sawbone tube, the results indicate that the contact force developed by the titanium nail is significantly higher than those developed by stainless and nickel-titanium nails. The contact forces developed by the titanium, stainless steel, and nickel- titanium nails are 385 (SD 34), 358 (SD 49), and 258 (SD 42) N, respectively. In the FE simulation, the titanium nail yields the highest push-out force when an end cap is not used, and the push-out forces in axial compression are 201, 183, and 87 N in the titanium, stainless, and nickel-titanium nails under axial compression, respectively. By contrast, the stainless nail yields the smallest gap deformation when an end cap is used. CONCLUSION Results of the present study show that the end cap is an important factor affecting the mechanical responses of nails fabricated using different materials. Titanium nails are preferred when an end cap is not used, whereas stainless nails are preferred when an end cap is used.
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Affiliation(s)
- Yen-Nien Chen
- Department of Physical Therapy, Asia University, NO.500, Lioufeng Rd., Wufeng, Taichung 413305, Taiwan.
| | - Pei-Yuan Lee
- Doctoral Program in Tissue Engineering and Regenerative Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan; Department of Orthopaedic Surgery, Show Chwan Memorial Hospital, Changhua, Taiwan
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Souza GAD, Cardoso VDF, Barros FCD, Trondoli LHPDC, Moriguchi CS, Sato TDO. Correlation between standing posture during work and low back and lower limb pain among cleaners and caregivers of older adults. FISIOTERAPIA E PESQUISA 2022. [DOI: 10.1590/1809-2950/20028429022022en] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
ABSTRACT Maintaining a standing posture during work has been associated with musculoskeletal symptoms. Few studies, however, assess the standing time using objective measures. Thus, this study aimed to verify whether standing time at work is associated with lower back and lower limb pain in the last seven days and last 12 months in caregivers of older adults and cleaners. This is a cross-sectional study. Standing time at work was quantified using inclinometers attached to the workers’ thigh and spine. Musculoskeletal symptoms were assessed using the Nordic Musculoskeletal Questionnaire. Data were analyzed using the point-biserial correlation coefficient (rpb) between standing time at work and the presence of musculoskeletal symptoms. The analyses were performed using the SPSS software, adopting 5% significance level. Workers spend most of their time standing still (41.3%) or walking (39.3%). The presence of symptoms in the lower back was positively correlated with standing time (rpb=0.52; p<0.05). Walking time was negatively correlated with symptoms at the hip in the last 12 months (rpb=−0.53; p<0.05) and running time with symptoms at the hip, in the last seven days, (rpb=−0.43; p<0.05) and the lower back (rpb=−0.43; p<0.05). Longer standing time was correlated with the presence of symptoms in the lower back. Meanwhile, less time walking and running were correlated with the presence of musculoskeletal symptoms in the hips and lower back.
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Souza GAD, Cardoso VDF, Barros FCD, Trondoli LHPDC, Moriguchi CS, Sato TDO. Correlação entre a postura em pé durante o trabalho e dor na coluna lombar e nos membros inferiores em trabalhadoras da limpeza e cuidadoras de idosos. FISIOTERAPIA E PESQUISA 2022. [DOI: 10.1590/1809-2950/20028429022022pt] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
RESUMO A postura em pé durante o trabalho tem sido associada a sintomas musculoesqueléticos. Entretanto, há poucos estudos que avaliam o tempo em pé utilizando medidas objetivas. Assim, o objetivo deste estudo foi verificar se o tempo em pé no trabalho está associado com dor na coluna lombar e nos membros inferiores nos últimos sete dias e 12 meses em cuidadoras de idosos e trabalhadoras da limpeza. Trata-se de estudo transversal, em que o tempo em pé no trabalho foi quantificado por meio de inclinômetros fixados na coxa e na coluna vertebral, e os sintomas musculoesqueléticos foram avaliados por meio do Questionário Nórdico de Sintomas Osteomusculares. Os dados foram analisados por meio da correlação ponto bisserial (rpb) entre o tempo em pé no trabalho e a presença de sintomas musculoesqueléticos. As análises foram realizadas por meio do software SPSS e o nível de significância adotado foi de 5%. Verificou-se que as trabalhadoras passam a maior parte do tempo em pé paradas (41,3%) ou andando (39,3%). Houve correlação positiva entre a presença de sintoma na lombar e o tempo em pé (rpb=0,52; p<0,05) e correlação negativa entre o tempo andando e sintomas no quadril (rpb=−0,53; p<0,05) nos últimos 12 meses e o tempo correndo e sintomas no quadril (rpb=−0,43; p<0,05) e na coluna lombar (rpb=−0,43; p<0,05) nos últimos sete dias. O maior tempo em pé foi correlacionado com a presença de sintomas na lombar; enquanto o menor tempo andando e correndo foram correlacionados com a presença de sintomas no quadril e na coluna lombar.
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Jin X, Dong Y, Wang F, Jiang P, Zhang Z, He L, Forsman M, Yang L. Prevalence and associated factors of lower extremity musculoskeletal disorders among manufacturing workers: a cross-sectional study in China. BMJ Open 2022; 12:e054969. [PMID: 35110322 PMCID: PMC8811580 DOI: 10.1136/bmjopen-2021-054969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To survey the prevalence of lower extremity musculoskeletal disorders (MSDs) among Chinese manufacturing workers, and to identify the associated factors. DESIGN Observational study with cross-sectional design. SETTING A self-administered questionnaire survey was conducted in four manufacturing factories in China. PARTICIPANTS 7908 manufacturing workers were included in this study after excluding non-conforming personnel. OUTCOME MEASURES Individual and work-related information, and MSDs in the whole leg and knee region were measured by the anonymous self-administered questionnaire. Individual and work-related factors associated with MSDs and their effects were identified through multivariate logistic regression. RESULTS Of all respondents, 3241 (41.0%) reported having had lower extremity MSDs in the recent 12 months, and for the knees, ankles/feet and hips/thighs were 29.5%, 23.9% and 16.7%, respectively. After confounder-adjusted single-factor analysis, 22 variables (of 24) were significantly related to the disorders. Factors like always kneeling/squatting for long periods, always standing for long periods and often lifting in an uncomfortable position were shown to have higher risks, with ORs of 2.77 (95% CI: 2.33 to 3.30), 2.30 (1.96 to 2.69) and 2.25 (2.04 to 2.47). Comparable results were found on knee disorders. The final model included 15 variables of demography, biomechanics and work organisation. The following factors showed increased risks of lower extremity MSDs: being female, being older, longer working years, higher body mass index (BMI), keeping the same posture for a long time, awkward position, shift work and monotonous work. Whereas having enough breaks reduced the risk. CONCLUSION The prevalence of lower extremity MSDs among Chinese manufacturing workers is high. The most commonly affected body regions were the knees and ankles/feet. Multiple factors were found associated with lower extremity MSDs including age, BMI, work experience, work organisations, physical ergonomics exposures, etc.
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Affiliation(s)
- Xu Jin
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China
| | - Yidan Dong
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China
| | - Fujiang Wang
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China
| | - Ping Jiang
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China
| | - Zhongbin Zhang
- National Center of Occupational Safety and Health, National Health Commission of the People's Republic of China, Beijing, China
| | - Lihua He
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China
| | - Mikael Forsman
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
- Division of Ergonomics, KTH Royal Institute of Technology School of Biotechnology, Stockholm, Sweden
| | - Liyun Yang
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
- Division of Ergonomics, KTH Royal Institute of Technology School of Biotechnology, Stockholm, Sweden
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Zhu B, Chen HX, Li S, Tan JH, Xie Y, Zou MX, Wang C, Xue JB, Li XL, Cao Y, Yan YG. Comprehensive analysis of N6-methyladenosine (m 6A) modification during the degeneration of lumbar intervertebral disc in mice. J Orthop Translat 2022; 31:126-138. [PMID: 34976732 PMCID: PMC8685911 DOI: 10.1016/j.jot.2021.10.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 10/25/2021] [Accepted: 10/29/2021] [Indexed: 01/22/2023] Open
Abstract
Objective To study the N6-methyladenosine (m6A) modification pattern of nucleus pulposus (NP) tissue during intervertebral disc degeneration (IDD). Methods A standing mouse model was generated, and staining and imaging methods were used to evaluate the IDD model. Methylated RNA immunoprecipitation with next-generation sequencing (MeRIP-seq) was used to analyze m6A methylation-associated transcripts in the NP, and real-time quantitative polymerase chain reaction (qRT-PCR) was used to detect the expression of methylation-related enzymes and conduct bio-informatics analysis. Results The standing mouse model caused IDD. Continuous axial pressure changed the expression of related methylases in degenerated NP tissue. Relative to the control group, the expression levels of KIAA1429, METTL14, METTL3, METTL4, WTAP, DGCR8, EIF3A and YTHDC1 in the experimental group were higher, while those of FTO, ELAVL1, HNRNPC1 and SRSF2 were lower. We identified 985 differentially expressed genes through MeRIP-Seq, among which 363 genes were significantly up-regulated, and 622 genes were significantly down-regulated. In addition, among the 9648 genes counted, 1319 m6A peaks with significant differences in methylation were identified, among which 933 were significantly up-regulated, and 386 were significantly down-regulated. Genes and pathways that were enriched in IDD have been identified. Conclusion The results of this study elucidated the m6A methylation pattern of NP tissue in degenerated lumbar intervertebral disc of mice and provided new perspectives and clues for research on and the treatment of lumbar disc degeneration. The Translational potential of this article As one of the important causes of low back and leg pain, intervertebral disc degeneration brings a huge economic burden to the society, family and medical system. Therefore, understanding the molecular and cellular mechanisms of intervertebral disc degeneration is of great significance for guiding clinical treatment. In this study, methylated RNA immunoprecipitation with next-generation sequencing on mice lumbar nucleus pulposus tissues found that differentially expressed genes and changes in the expression of related methylases, confirming that RNA methylation is involved in intervertebral disc degeneration. The process provides new vision and clues for future research on intervertebral disc degeneration.
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Affiliation(s)
- Bin Zhu
- Department of Spine Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Hao-xiang Chen
- Department of Spine Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Shan Li
- Department of Spine Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Jing-hua Tan
- Department of Spine Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Yong Xie
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Ming-xiang Zou
- Department of Spine Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Cheng Wang
- Department of Spine Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Jing-bo Xue
- Department of Spine Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Xue-lin Li
- Department of Spine Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Yong Cao
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, China
- Corresponding author. Department of Spine Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Kaifu District, Changsha, Hunan, 410008, China.
| | - Yi-guo Yan
- Department of Spine Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
- Corresponding author. Department of Spine Surgery, The First Affiliated Hospital of University of South China, 69 Chuanshan Road, Hengyang, Hunan, 421001, China.
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Lunde LK, Merkus S, Koch M, Knardahl S, Wærsted M, Veiersted KB. Associations of objectively measured total duration and maximum bout length of standing at work with lower-extremity pain intensity: a 2-year follow-up of construction and healthcare workers. BMC Musculoskelet Disord 2021; 22:43. [PMID: 33413254 PMCID: PMC7791765 DOI: 10.1186/s12891-020-03868-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 12/09/2020] [Indexed: 11/28/2022] Open
Abstract
Background Musculoskeletal disorders are among the major reasons for years lived with disability. Approximately one third of the European working population report lower-extremity discomfort and many attribute these discomforts to work-related factors. Employees in the healthcare and construction sectors reports high levels of lower-extremity pain and commonly relate the pain to their profession. These workers spend a large part of their workday standing. Periods of prolonged standing is suggested to increase lower-extremity symptoms, but this cannot be concluded on, since limited evidence is available from longitudinal studies using objective measures. This study aimed to determine possible associations between objectively measured total duration and maximum bout length of static- and dynamic standing at work and lower-extremity pain intensity (LEPi) among Norwegian construction- and healthcare workers. Methods One-hundred and twenty-three construction and healthcare workers wore two accelerometers for up to four consecutive days, to establish standing behavior at baseline. The participants reported LEPi (Likert scale 0–9) for the preceding 4 weeks at baseline and after 6, 12, 18, and 24 months. We investigated associations between standing at work and average and change in LEPi using linear mixed models with significance level p ≤ 0.05. Results Total duration of static- and dynamic standing showed weak associations with average LEPi, for the total sample and for construction workers. Maximum bout of static- and dynamic standing was associated with average LEPi in construction workers, but not in healthcare workers. Furthermore, we found no associations between standing and change in LEPi over the 2-year follow-up in any of our analyses. Conclusions This study indicate that objectively measured standing is associated with average LEPi over 2-years follow-up in construction workers, and that maximal bout of standing have a stronger association to LEPi than total duration. For every 10 min added to the maximal length of continuous standing during an average workday, we found approximately one unit increase in pain on a 0–9 scale. The lack of significant findings in analyses on healthcare workers suggest that the association between standing and LEPi depend on work-tasks, gender and/or other sector-specific factors. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-020-03868-0.
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Affiliation(s)
- Lars-Kristian Lunde
- National Institute of Occupational Health, P.O. Box 5330, Majorstuen, 0304, Oslo, Norway.
| | - Suzanne Merkus
- National Institute of Occupational Health, P.O. Box 5330, Majorstuen, 0304, Oslo, Norway
| | - Markus Koch
- National Institute of Occupational Health, P.O. Box 5330, Majorstuen, 0304, Oslo, Norway
| | - Stein Knardahl
- National Institute of Occupational Health, P.O. Box 5330, Majorstuen, 0304, Oslo, Norway
| | - Morten Wærsted
- National Institute of Occupational Health, P.O. Box 5330, Majorstuen, 0304, Oslo, Norway
| | - Kaj Bo Veiersted
- National Institute of Occupational Health, P.O. Box 5330, Majorstuen, 0304, Oslo, Norway
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Hoven H, Wahrendorf M, Goldberg M, Zins M, Siegrist J. Cumulative disadvantage during employment careers - The link between employment histories and stressful working conditions. ADVANCES IN LIFE COURSE RESEARCH 2020; 46:100358. [PMID: 36721343 DOI: 10.1016/j.alcr.2020.100358] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/06/2020] [Accepted: 06/24/2020] [Indexed: 06/18/2023]
Abstract
Accumulated evidence on health-adverse effects of stressful psychosocial and physical work environments is considered a major breakthrough in recent social epidemiological research. However, research on adverse health effects of repeated exposure over time is lacking. In this contribution we analyse associations of characteristics of adverse employment histories with stressful psychosocial and physical current working conditions. We use data from the French CONSTANCES study and restrict the sample to employed men and women aged 45-60 (n = 23652). Current working conditions are assessed by effort-reward imbalance as well as stressful physical working tasks and positions. Previous employment histories (between age 25 and 45) are retrospectively assessed and measured by indicators of precarious, discontinuous and disadvantaged working careers. We found consistent associations of precarious, discontinuous or disadvantaged careers with strenuous physical working conditions and with low occupational rewards. However, low effort rather than high effort was associated with adverse employment histories. Therefore, associations with the effort-reward ratio turned out to be inconsistent. By extending the scope of analysis beyond single time-point measures, we identified three types of adverse employment histories among employees between age 25 and 45 in a stress-theoretical framework, and we demonstrated their associations with employees' current adversity at work between the age of 45-60.
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Affiliation(s)
- Hanno Hoven
- Centre for Health and Society, Institute of Medical Sociology, Medical Faculty, University of Düsseldorf, Germany.
| | - Morten Wahrendorf
- Centre for Health and Society, Institute of Medical Sociology, Medical Faculty, University of Düsseldorf, Germany
| | - Marcel Goldberg
- INSERM, Population-Based Epidemiological Cohorts Unit, UMS 011, Villejuif, France; Paris Descartes University, France
| | - Marie Zins
- INSERM, Population-Based Epidemiological Cohorts Unit, UMS 011, Villejuif, France; Paris Descartes University, France
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A psychosocial theory of sick leave put to the test in the European Working Conditions Survey 2010-2015. Int Arch Occup Environ Health 2019; 93:229-242. [PMID: 31599338 DOI: 10.1007/s00420-019-01477-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 09/25/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE In the present investigation a psychosocial theory of sick leave is proposed which integrates work-related determinants, health effects of particular work characteristics, and workers' health status. In addition, the theory explicitly formulates a series of mediators and moderators of the associations between work-related determinants and sick leave. On the basis of the theoretical assumptions and previous research findings, a series of research hypotheses are investigated with survey data. METHODS The study is based on data from the European Working Conditions Survey 2010 and 2015 (n = 59,790). The research hypotheses are investigated by means of generalised linear mixed models within the framework of hierarchical Bayesian regression models and Markov Chain algorithms. The theory is assessed by estimating three so-called hurdle models, which take into account the excess zeros usually observed in sick leave rates. RESULTS In general, the findings provide evidence of the adequacy of the theory explaining the observed variation of sick-leave rates. Several biomechanical and psychosocial characteristics of the working environment, occupation, age, and the subjective assessment of health status were found to be strongly associated with both the likelihood of being in sick leave and the length of sick-leave spells. CONCLUSIONS The theory and the findings of the present study may serve as a basis for the development and implementation of occupational health interventions aiming to reduce sick-leave rates in organisations.
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Almomani F, Alghwiri AA, Alghadir AH, Al-Momani A, Iqbal A. Prevalence of upper limb pain and disability and its correlates with demographic and personal factors. J Pain Res 2019; 12:2691-2700. [PMID: 31564961 PMCID: PMC6735537 DOI: 10.2147/jpr.s198480] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 07/29/2019] [Indexed: 11/23/2022] Open
Abstract
Purpose The present study aimed to assess the prevalence of upper limb pain and disability and to investigate potentially correlated factors among university students in Jordan. Methods This was a cross-sectional questionnaire-based survey study that was conducted among university students. The upper limb pain and disability were assessed by the Disabilities of the Arm, Shoulder, and Hand (DASH) outcome questionnaire. The DASH outcome questionnaire was distributed to 2100 students from the population of 2 public and 2 private universities in the north of Jordan. Demographic and personal information were collected. Data were analyzed using descriptive statistics and linear regression analysis. Results A total of 1929 DASH outcome questionnaires were returned, with a high response rate of 91.86%. The age of the subjects was between 18–28 years (52% male; 48% female). The majority of subjects (85.2%) used at least one smartphone. The majority of them had been using a smartphone for more than 5 years. The prevalence of upper limb pain and disability among university students was 24%. Several factors were found to be significantly connected with upper limb pain and disability among university students, such as smartphone use, computer use, the presence of musculoskeletal problems, not living with their families, using public transport (bus), and daily housekeeping. Conclusion The results of this study can be used globally to promote the health and well-being of university students, improve their academic performance and future career. Identifying high-risk groups will assist in early identifications and prevention programs for upper limb pain and disability among university students.
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Affiliation(s)
- Fidaa Almomani
- Therapeutic Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
| | - Alia A Alghwiri
- School of Rehabilitation Sciences, The University of Jordan, Amman, Jordan
| | - Ahmad H Alghadir
- Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | | | - Amir Iqbal
- Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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Guzmán-Velasco A, Diago-Franco JL. Coexistence of musculoskeletal disorders in the upper body of labor origin. DUAZARY 2019. [DOI: 10.21676/2389783x.2749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The coexistence of musculoskeletal disorders is common in work activities around the world, however, information on the subject is insufficient both in Latin America and in Colombia despite its impact at the economic and social level. The objective of this research was to determine the coexistence of musculoskeletal disorders of work origin in the upper body in the working population that attends a Service Provider Institution (IPS). An observational, descriptive, quantitative, and cross-sectional design study was conducted between the first of March in 2017 and the first of March in 2018. Four semiological tests were applied for physiotherapists to seek the coexistence of carpal tunnel syndrome, lateral epicondylitis, rotator cuff syndrome, and cervical myofascial syndrome. Among the results, it was found that 92.6% (n=138) of the patients had two or more pathologies, 59.73% (n=89) had the rotator cuff and the myofascial syndrome, 52.35% (n=78) had epicondylitis and myofascial syndrome, and 37.58% (n=56) had carpal tunnel syndrome and lateral epicondylitis. This study highlights the high coexistence of musculoskeletal disorders in the upper body, especially in the female gender.
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Locks F, Gupta N, Madeleine P, Birk Jørgensen M, Oliveira AB, Holtermann A. Are accelerometer measures of temporal patterns of static standing associated with lower extremity pain among blue-collar workers? Gait Posture 2019; 67:166-171. [PMID: 30342230 DOI: 10.1016/j.gaitpost.2018.10.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 10/03/2018] [Accepted: 10/08/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND Pain in the lower extremities is common among blue-collar workers, with prolonged static standing as a potential risk factor. However, little is known about the association between diurnal accelerometer measures of static standing and pain in the lower extremities, and the potential importance of temporal patterns of static standing for this association. RESEARCH QUESTION We aimed to investigate the cross-sectional association between accelerometer measures of total static standing time and temporal patterns (bout duration) of static standing (short: 0-5 min; moderate: >5-10 min; and long bouts: >10 min) during total day, work and leisure and pain intensity (on a 0-10 scale) in hips, knees and feet/ankles. METHODS Accelerometers were used to measure static standing during four consecutive days among 677 blue-collar workers. Linear regression analyses were used to investigate the association between static standing time and pain intensity in the lower extremities. RESULTS Total static standing time comprised, on average, 3.9 h per day. 72.6% of the workers were exposed to long bouts of static standing, averaging 0.1 h per day. Short bouts of static standing were positively associated with hip and knee pain during total day, and positively associated with knee pain during work. Also, total static standing time during leisure was positively associated with knee and hip pain. A negative, but not significant, association was found for static standing in moderate bouts at work and hip pain. SIGNIFICANCE Even though the associations found were weak, these findings suggest that the temporal pattern of static standing is of importance for pain in the lower extremities. Future research should examine the possibility that moderate bouts of standing could play a role in preventing lower extremity pain.
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Affiliation(s)
- Francisco Locks
- Department of Physical Therapy, University of Pernambuco, BR 203 Road, km 2, s/n, 56328-900, Petrolina, Brazil; Laboratory of Clinical and Occupational Kinesiology (LACO), Department of Physical Therapy, Federal University of São Carlos, Washington Luiz Road, km 235, SP310, 13565-905 São Carlos, Brazil.
| | - Nidhi Gupta
- National Research Centre for the Working Environment, Copenhagen, Lersø Parkallé 105, 2100 Copenhagen, Denmark.
| | - Pascal Madeleine
- The Faculty of Medicine, Department of Health Science and Technology, Sport Sciences, Fredrik Bajers Vej 7, Building: D3-201, 9220 Aalborg Ø, Denmark.
| | - Marie Birk Jørgensen
- National Research Centre for the Working Environment, Copenhagen, Lersø Parkallé 105, 2100 Copenhagen, Denmark.
| | - Ana Beatriz Oliveira
- Laboratory of Clinical and Occupational Kinesiology (LACO), Department of Physical Therapy, Federal University of São Carlos, Washington Luiz Road, km 235, SP310, 13565-905 São Carlos, Brazil.
| | - Andreas Holtermann
- National Research Centre for the Working Environment, Copenhagen, Lersø Parkallé 105, 2100 Copenhagen, Denmark; University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
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Stolt M, Miikkola M, Suhonen R, Leino-Kilpi H. Nurses' Perceptions of Their Foot Health: Implications for Occupational Health Care. Workplace Health Saf 2017; 66:136-143. [PMID: 28856977 DOI: 10.1177/2165079917727011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nursing practice includes static standing and much walking causing strains to lower extremities. However, little is known about nurses' foot health and particularly their perceptions of their foot health. Therefore, in this study operating room nurses' perceptions of their foot health was investigated and promoting and hindering factors were identified. In total, 14 operating room nurses participated in in-depth interviews. The informants regarded foot health as part of general health and moreover a significant part of work well-being. Promoting factors for foot health were activity in sports and foot self-care as well as varying work conditions and seeing patients with severe foot conditions which served as a motivating factor to care for their own feet. On the contrary, hindering factors were unsuitable footwear, constant standing, and lack of motivation to care for their own feet. Based on this study, nurses' value their foot health which should be promoted. Nurses could benefit from annual foot health assessments and foot self-care education provided by occupational health professionals.
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Affiliation(s)
| | | | - Riitta Suhonen
- 1 University of Turku.,2 Turku University Hospital.,3 City of Turku Welfare Division
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Lower limb pain among workers: a cross-sectional analysis of the fifth European Working Conditions Survey. Int Arch Occup Environ Health 2017; 90:575-585. [PMID: 28417255 PMCID: PMC5934451 DOI: 10.1007/s00420-017-1220-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 04/05/2017] [Indexed: 10/26/2022]
Abstract
OBJECTIVE Develop a model to predict the prevalence of lower limb pain using indicators of high workplace exposures based on the fifth European Working Conditions Survey, evaluate its impact and explore its significance for work-related health problems. METHOD Cross-sectional interview data of 35,372 workers from 27 countries of the European Union in 2010 (EU27) were used to develop (20% sample) and validate (80% sample) a logistic regression model for lower limb pain. Independent variables included descriptions of working conditions, assessments of physical and psychosocial exposures at work, and demographic factors. The impact of the model was explored through the amount of lower limb pain cases attributable to work and estimating work absences correlated with lower limb pain. RESULTS The resulting logistic model included ten risks indicators and one preventive factor. The highest odds ratios (OR) corresponded to "tiring or painful positions" OR 2.0, 99% confidence interval (99% CI) 1.9-2.2, and "not satisfied with level of working conditions in the job" (OR 1.6, 99% CI 1.5-1.7). The prevalence of work-related lower limb pain was 16.5% for men and 15.8% for women for the 27 countries of the European Union. Estimates based on the developed model revealed more than 34 million cases of work-related lower limb pain, where four physical risks explained about 22 million cases. In addition, more than 3 million days of absence from work in 2010 could be attributed to lower limb pain. CONCLUSION Lower limb pain is highly prevalent among the European workforce and work exposures are a major contributing factor. Effective workplace interventions should aim at improving working conditions at workplaces with multiple risks.
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Vikne H, Jebens E, Elka S, Knardahl S, Veiersted KB. Working suspended in a harness rig: A comparative study of musculoskeletal health complaints in rope access technicians and controls. Work 2017; 56:291-300. [PMID: 28211840 DOI: 10.3233/wor-172490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Rope access technique is an alternative method for gaining access to challenging work locations. There is limited knowledge about possible adverse effects of this technique on the workers' health. OBJECTIVE To compare the frequency of bodily regions with pain in rope access technicians with craft workers and the working population in general. METHODS The one-month prevalence of pain in the head, neck, distal upper extremities, lower back and lower extremities was recorded in rope access technicians (n = 95), "craft workers" (n = 289) and "all occupations" (n = 1563). RESULTS An increased prevalence of pain in the neck, distal upper extremities and lower extremities was found for the rope access technicians compared with all occupations (p-values <0.01). Compared with the craft workers, relatively more rope access technicians reported pain in the lower extremity region (p <0.01) while the groups were similar for the other body regions. CONCLUSIONS The prevalence of pain in the lower extremities was higher in rope access technicians compared with craft workers, while no differences were found for other body regions. The increased prevalence of pain in the neck and distal upper extremities in the technicians compared with all occupations may therefore be related to the work tasks and not the access technique.
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Affiliation(s)
- Harald Vikne
- Department of Work Psychology and Physiology, National Institute of Occupational Health, Oslo, Norway.,Department of Health Sciences, Institute of Health and Society, University of Oslo, Oslo, Norway
| | - Einar Jebens
- Department of Work Psychology and Physiology, National Institute of Occupational Health, Oslo, Norway
| | - Shahrooz Elka
- Department of Work Psychology and Physiology, National Institute of Occupational Health, Oslo, Norway
| | - Stein Knardahl
- Department of Work Psychology and Physiology, National Institute of Occupational Health, Oslo, Norway
| | - Kaj Bo Veiersted
- Department of Work Psychology and Physiology, National Institute of Occupational Health, Oslo, Norway
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Lanhers C, Pereira B, Garde G, Maublant C, Dutheil F, Coudeyre E. Evaluation of 'I-Preventive': a digital preventive tool for musculoskeletal disorders in computer workers-a pilot cluster randomised trial. BMJ Open 2016; 6:e011304. [PMID: 27660316 PMCID: PMC5051336 DOI: 10.1136/bmjopen-2016-011304] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVES I-Preventive is a digital preventive tool for musculoskeletal disorders (MSDs) in computer workers. We sought to determine its impact on pain in computer workers with upper limb MSDs and visual discomfort. METHODS We conducted a pilot cluster randomised trial in 2 different sites of a tyre factory in France. We randomised 200 employees to either an intervention group (I-Preventive) or control group, each comprising symptomatic and asymptomatic employees. The workers were followed up for 5 months. The main outcome was overall recovery from symptoms following 1 month's intervention based on Nordic-style and eyestrain questionnaires. RESULTS We included 185/200 workers: 96 in the intervention group (mean age 41.8±1.4 years; 88.5% males) and 79 in the control group (mean age 42.9±12.0 years; 94.5% males). The most painful areas (numerical scale ≥2) were the neck (40.0%), upper back (18.8%) and shoulders (15.7%). For the most painful anatomical area, the Nordic score significantly decreased after 1 month in the intervention group (p=0.038); no change was observed in the control group (p=0.59). After 1 month's use, the intervention group reported less pain in the painful area and less visual discomfort symptoms (p=0.02). Adherence to the I-Preventive program was 60%. CONCLUSIONS I-Preventive is effective in the short term on musculoskeletal symptoms and visual discomfort by promoting active breaks and eyestrain treatment. This easy-to-use digital tool allows each worker to focus on areas of their choice via personalised, easy exercises that can be performed in the workplace. TRIAL REGISTRATION NUMBER NCT02350244; Pre-results.
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Affiliation(s)
- C Lanhers
- Department of Preventive and Occupational Medicine, University Hospital of Clermont-Ferrand (CHU), Clermont-Ferrand, France
- Department of Physical Medicine and Rehabilitation, University Hospital of Clermont-Ferrand (CHU), Clermont-Ferrand, France
- Department of Psychological & Psychosocial Stress, CNRS UMR 6024, University of Clermont Auvergne, Clermont-Ferrand, France
- Clermont Auvergne University, France
| | - B Pereira
- University Hospital of Clermont-Ferrand (CHU), Clinical Research and Innovation Direction, Clermont-Ferrand, France
| | - G Garde
- Michelin, Clermont-Ferrand, France
| | | | - F Dutheil
- Department of Preventive and Occupational Medicine, University Hospital of Clermont-Ferrand (CHU), Clermont-Ferrand, France
- Department of Psychological & Psychosocial Stress, CNRS UMR 6024, University of Clermont Auvergne, Clermont-Ferrand, France
- Faculty of Health, Australian Catholic University, School of Exercise Science, Melbourne, Victoria, Australia
- Laboratory of Metabolic Adaptations to Exercise in Physiological and Pathological Conditions (AME2P, EA3533), University of Clermont Auvergne, Clermont-Ferrand, France
| | - E Coudeyre
- Department of Physical Medicine and Rehabilitation, University Hospital of Clermont-Ferrand (CHU), Clermont-Ferrand, France
- INRA, Human Nutrition Unit UMR1019, Clermont-Ferrand, France
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Abstract
INTRODUCTION The diagnoses of workers being unfit to work may be a relevant health indicator. Therefore, the aim of this study was to analyze the one-year incidence of an unfit to work diagnosis. METHOD This one-year prospective study included all workers undergoing annual work medical examination from occupational health services in Troyes, France. RESULTS Twenty-one occupational physicians followed 54,026 employees. The all-cause incidence of being unfit to return to work was 0.772%. The two main causes of being unfit to work were musculoskeletal disorders (61%) and psychopathologies (24%). The relative risk (RR) of being unfit to work, independent of the cause, was higher when employees were aged over 50 years (RR = 2.51), and female (RR = 1.51). CONCLUSIONS Prospective results from occupational physicians' medical records may provide significant and cost-effective directions to prioritize actions and target health promotion in the workplace.
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Macdonald W, Oakman J. Requirements for more effective prevention of work-related musculoskeletal disorders. BMC Musculoskelet Disord 2015; 16:293. [PMID: 26466897 PMCID: PMC4606837 DOI: 10.1186/s12891-015-0750-8] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 10/04/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Exposures to occupational hazards substantially increase workers' risk of developing musculoskeletal disorders (MSDs) and can exacerbate pre-existing disorders. The effects on MSD risk of the physical requirements of work performance are well recognised, but there is now ample evidence that work-related psychosocial hazards can also have substantial effects; further, some hazards may be additive or interactive. This evidence is not reflected in current workplace risk management practices. DISCUSSION Barriers to more effective workplace management of MSD risk include: the widespread belief that risk arises largely or entirely from physical hazard exposures; regulatory and guidance documents targeting MSDs, most of which reflect this belief; risk assessment tools that focus narrowly on subsets of mainly physical hazards and yet generate outputs in the form of MSD risk indicators; and the conventional occupational health and safety (OHS) risk management paradigm, which is ill-suited to manage MSD risk. It is argued that improved workplace management of MSD risk requires a systems-based management framework and more holistic risk assessment and control procedures that address risk from all types of hazard together rather than in isolation from each other, and that support participation by workers themselves. New MSD risk management tools are needed to meet these requirements. Further, successful implementation of such changes is likely to require some restructuring of workplace responsibilities for MSD risk management. Line managers and supervisors often play key roles in generating hazards, both physical and psychosocial, so there is a need for their more active participation, along with OHS personnel and workers themselves, in routine risk assessment and control procedures. MSDs are one of our largest OHS problems, but workplace risk management procedures do not reflect current evidence concerning their work-related causes. Inadequate attention is given to assessing and controlling risk from psychosocial hazards, and the conventional risk management paradigm focuses too narrowly on risk from individual hazards rather than promoting the more holistic approach needed to manage the combined effects of all relevant hazards. Achievement of such changes requires new MSD risk management tools and better integration of the roles of OHS personnel with those of line managers.
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Affiliation(s)
- Wendy Macdonald
- Centre for Ergonomics & Human Factors, School of Psychology and Public Health, La Trobe University, Bundoora, Victoria, 3086, Australia.
| | - Jodi Oakman
- Centre for Ergonomics & Human Factors, School of Psychology and Public Health, La Trobe University, Bundoora, Victoria, 3086, Australia.
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