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1.
J Orthop Sports Phys Ther ; 51(9): 415-417, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34465141

RESUMO

SYNOPSIS: The esports industry is growing exponentially: more viewers, more support, more money, and more players. Esports competitors require high-level cognitive function and dexterity. There is an increasing demand for physical therapists to manage esports-related musculoskeletal injuries across all levels of play (amateur, semi-professional, professional). Clinicians have relied on general musculoskeletal principles and extrapolating research findings from other populations, including athletes, office workers, air traffic controllers, and musicians, to inform an evidence-based practice approach to assessing and managing injury in esports competitors. The physical demands of esports competitors are triple those of office workers, varying across esports games, platforms (computer, console, mobile), and levels of performance. We highlight the role of physical therapy in esports, the need for best-practice guidelines for musculoskeletal health care, the current research evidence, and the large research gaps in the field. J Orthop Sports Phys Ther 2021;51(9):415-417. doi:10.2519/jospt.2021.0109.


Assuntos
Traumatismos em Atletas/terapia , Ergonomia , Doenças Musculoesqueléticas/terapia , Modalidades de Fisioterapia , Jogos de Vídeo , Humanos
2.
BMC Musculoskelet Disord ; 22(1): 763, 2021 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-34488714

RESUMO

BACKGROUND: Musculoskeletal disorders are common worldwide. Several factors are suggested in their aetiology, one of which is ergonomics alongside other individual factors. This study aims at investigating the prevalence of musculoskeletal disorders among administrative office workers at a large university in Saudi Arabia. METHODS: This cross-sectional study recruited office workers at a Saudi university. A questionnaire was used that involved three sections, the first section consisted of sociodemographic questions, the second included the Rapid Office Strain Assessment (ROSA) checklist to assess ergonomic factors possibly involved, and the third included the Nordic Musculoskeletal Questionnaire to measure the outcome. Bi-variate analyses were performed by Chi-Squared tests and T-tests where appropriate, and a multivariable logistic regression was done to yield odds ratios (OR) and 95% confidence intervals (CIs). RESULTS: The prevalence of musculoskeletal symptoms in any region during the past 12 months preceding the study was 84.5%, and only 30% have sought medical advice. The most common area of complaint was the lower back (54.5%). After adjustment, age and years of experience were positively associated with musculoskeletal symptoms (OR = 1.04, 95% CI = 1.01-1.09 and OR = 1.10, 95% CI = 1.05-1.15). Normal weight was associated with a significant reduction in risk (OR = 0.10, 95% CI = 0.05-0.18). ROSA score was an independent risk factor (OR = 1.77, 95% CI = 1.05-2.96). CONCLUSIONS: Musculoskeletal symptoms were highly prevalent in the current sample. Identified predictors may support the need for interventions to reduce risk.


Assuntos
Doenças Musculoesqueléticas , Doenças Profissionais , Estudos Transversais , Ergonomia , Humanos , Doenças Musculoesqueléticas/diagnóstico , Doenças Musculoesqueléticas/epidemiologia , Doenças Profissionais/diagnóstico , Doenças Profissionais/epidemiologia , Prevalência , Fatores de Risco , Arábia Saudita/epidemiologia , Inquéritos e Questionários
3.
Appl Ergon ; 97: 103542, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34375880

RESUMO

Slips, trips, and falls (STFs) are the second leading cause of non-fatal injuries and can lead to fatal incidents in the mining industry. Hazard identification is an essential first step in remediating STF hazards and creating a safer work environment. Previous research has identified industry-specific risk factors for STFs, evaluated exposures to those risk factors, and developed taxonomies of the hazards for the construction and farming sectors. In comparison, ErgoMine-a mobile device application-based ergonomics audit tool-is the only systematic evaluation tool that covers STF hazards in the mining industry. However, ErgoMine was not specifically developed to address STF hazards. This paper describes the development of a taxonomy that helps identify STF hazards at surface mining sites and provides recommendations to address these hazards to inform future evaluation tools. The objective was to develop a taxonomy that was self-explanatory, observable, repeatable, and solution oriented. In addition to current regulations, standards and guidelines were used to develop the taxonomy to ensure the focus was beyond basic compliance. A detailed description of how the STF hazard taxonomy was created for walkways, stairways, and fixed ladders is provided, along with two specific applications of its use. The STF hazard taxonomy can be used to develop tools like checklists and ergonomics audits to identify and remediate slip, trip, and fall hazards at surface mining facilities, thereby improving worker safety.


Assuntos
Acidentes por Quedas , Acidentes de Trabalho , Acidentes de Trabalho/prevenção & controle , Ergonomia , Humanos , Fatores de Risco , Local de Trabalho
4.
Artigo em Chinês | MEDLINE | ID: mdl-34365764

RESUMO

Objective: To analyze the ergonomic influencing factors of work-related muscular skeletal disorders (WMSD) of online delivery staff in the catering industry. Methods: In October 2019, 137 online delivery staff in the catering industry from Nangang District, Xiangfang District and Songbei District in Harbin were investigated by questionnaire and vibration test. The influencing factors of the occurrence of WMSD among online delivery staff were analyzed by multiple logistic regression analysis. Results: Among the 137 subjects, 93 (67.9%) had WMSD, and the prevalence rates of neck (35.8%, 49/137) and shoulder (35.8%, 49/137) were highest. The whole-body vibration (WBV) A (8) and hand-arm vibration (HAV) A (8) of the subjects were 0.43 (0.16, 0.87) m/s(2) and 2.25 (1.22, 6.35) m/s(2), respectively. Multivariate logistic regression analysis showed that high HAV A (8) was significant risk factor for WMSD of online delivery staff (OR=3.053, 95%CI: 1.126-8.280) , daily riding time≤6 h and working years during12-18 months were protective factors for WMSD of online delivery staff (OR=0.175, 95%CI: 0.052-0.581; OR=0.152, 95%CI: 0.040-0.567) . Conclusion: The high incidence of WMSD for online delivery staff in the catering industry is mainly related to HAV, daily riding time and working years. Researchers need to strengthen the research on the transportation, helmets and other work equipment and task arrangements of online delivery staff in order to improve the labor safety of online delivery staff.


Assuntos
Doenças Musculoesqueléticas , Doenças Profissionais , Ergonomia , Humanos , Indústrias , Doenças Musculoesqueléticas/epidemiologia , Doenças Profissionais/epidemiologia , Fatores de Risco
5.
Artigo em Inglês | MEDLINE | ID: mdl-34444514

RESUMO

Despite decades of research into patient falls, there is a dearth of evidence about how the design of patient rooms influences falls. Our multi-year study aims to better understand how patient room design can increase stability during ambulation, serving as a fall protection strategy for frail and/or elderly patients. The aim of this portion of the study was to ascertain the architect's perspective on designing a room to mitigate the risk of falls, as well as to evaluate the face validity of a predictive algorithm to assess risk in room design using the input of a design advisory council (AC). The purpose of this paper is to provide insight into the design process and decision-making for patient rooms; summarize the impressions of industry experts about the configurations and layout of the patient rooms tested in a preliminary augmented reality model; establish the face validity of modeled heat maps depicting risk; and report the results of a pre-meeting and post-meeting survey of expert opinions. Feedback was coded using human factors/ergonomic (HF/E) design principles, and the findings will be used to guide further development of an "optimal" prototype room for human subject testing. The results confirm the challenges that architects face as they balance competing priorities and reveal how a participatory process focusing on preventing falls can shift assumptions about design strategies, especially subtle changes (e.g., toilet orientation).


Assuntos
Acidentes por Quedas , Quartos de Pacientes , Acidentes por Quedas/prevenção & controle , Idoso , Atenção à Saúde , Ergonomia , Humanos , Inquéritos e Questionários
6.
Med Lav ; 112(4): 292-305, 2021 Aug 26.
Artigo em Inglês | MEDLINE | ID: mdl-34446686

RESUMO

BACKGROUND AND OBJECTIVES: Pistachio farmers are exposed to a variety of risk factors for musculoskeletal disorders (MSDs). However, no study has been conducted to investigate MSDs in pistachio workers. Therefore, in the present study, besides investigating the prevalence of MSDs and their ergonomic risk factors, the participatory ergonomics (PE) method is used to provide an intervention program to reduce MSDs in this population in harvesting and processing pistachio. METHODS: The present study was conducted in two phases. In the first phase 138 workers participated. The prevalence of MSDs was assessed with Nordic Musculoskeletal Questionnaire and the ergonomic risk factors was identified with ManTRA method. In the second phase PE was used to perform ergonomic interventions for reducing MSDs and the effect of the intervention was investigated. Sixty-four workers participated in the second phase (32 in the case group and 32 in the control group). RESULTS: The highest prevalence of MSDs was in shoulders (63.7%), followed by the lower back (63%) and wrists/hands (52.1%). The comparison showed that after implementing the PE intervention program, the prevalence of MSDs in the intervention group was not significantly different from that in the control group. However, in the reassessment by the ManTRA method for five tasks that were identified as high risk in the first phase, a decrease in ManTRA final score was observed for all the five tasks. CONCLUSIONS: MSDs were prevalent in all body regions of workers. After implementing PE interventions exposure to ergonomic risk factors decreased.


Assuntos
Doenças Musculoesqueléticas , Doenças Profissionais , Pistacia , Ergonomia , Fazendeiros , Humanos , Doenças Musculoesqueléticas/epidemiologia , Doenças Musculoesqueléticas/prevenção & controle , Doenças Profissionais/epidemiologia , Doenças Profissionais/prevenção & controle , Prevalência , Medição de Risco , Fatores de Risco , Inquéritos e Questionários
7.
Work ; 69(4): 1197-1208, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34459430

RESUMO

BACKGROUND: Because of wrong sitting position, children have back-pain and related musculoskeletal pain (MPD). Due to inappropriate designed class furniture by not taking into account the children's anthropometric measurements have negative effect on children musculoskeletal systems. The impact of the COVID-19 pandemic crisis has changed the furniture industry's production trends. OBJECTIVE: This study aimed to develop a new fuzzy based design of ergonomic-oriented classroom furniture for primary school students considering the measured anthropometric dimensions of students' safety, health, well-being, i.e. ergonomic criteria, socio-psychological aspect and post-COVID policies. METHODS: In the study 2049 number of primary school students are assessed considering COVID-19 pandemic policies and their static anthropometric dimensions were measured between 7-10-year-old (between 1st-4th grade students) and descriptive statistics of children among their ages and genders are calculated; mean, standard deviation, percentiles. The data collected from the students were analyzed quantitatively by using Significance Analysis: Mann-Whitney U test statistic, t-test, Regression Analysis and one-way ANOVA. In the study interviews with experts are performed and fuzzy mathematical model (by using fuzzy-AHP, fuzzy-TOPSIS and fuzzy-VIKOR) is developed to calculate Turkey's three schools' furniture. RESULTS: Results showed statistically significant differences between two genders. And it is observed that the seating bench height is too high for primary school students and lower than the height of the classroom's blackboard from the floor. Fuzzy Multi Criteria Decision Making Method's (FMCDM) results show that primary school students' ergonomic classroom furniture should be mainly designed by considering "COVID-19 Criteria", "Ergonomic Criteria" and "Socio-Psychological Aspect". Students' existing seating benches and tables are changed by considering post-COVID policies/protocols, Ergonomic Criteria and Socio-Psychological Aspect. And a new seating bench/chair and table's dimensions is proposed in the study. CONCLUSIONS: Children study at school for long periods and their activities involve long periods of time on their desks in schools. As per the results of the study, it can be concluded that school management must consider the genders, ages of students and take into account the post-COVID policies/protocols while procuring the classroom furniture. The COVID-19 pandemic is the single largest event to have affected children globally in their access to school in recent times; estimates suggest that over 85%of the world's total enrolled learners, 1.5 billion children and youths, have been affected. The coronavirus pandemic also creates dramatic changes for the school furniture.


Assuntos
COVID-19 , Decoração de Interiores e Mobiliário , Adolescente , Criança , Ergonomia , Feminino , Lógica Fuzzy , Humanos , Masculino , Pandemias , SARS-CoV-2 , Instituições Acadêmicas
8.
Artigo em Inglês | MEDLINE | ID: mdl-34444390

RESUMO

Occupational Health and Safety (OHS) in agricultural activities is an issue of major concern worldwide notwithstanding the ever stricter regulations issued in this sector. In particular, most accidents are related to the use of tractors and the main causes of this phenomenon are due to the lack of rollover protective structures (ROPSs). This happens especially when tractors are used in particular in-field operations that are characterized by limited clearances between tractor and crop rows so that farmers usually use tractors without ROPS (e.g., dismounting it). To solve such a problem, foldable protective structures (FROPSs) have been proposed, which should augment the operator's protection. However, FROPS's conventional solutions underestimate the operators' risk-taking behavior and the widespread misuse of FROPS due to the efforts needed to operate it. The current study aims at contributing to the improvement of the latter issue proposing the development of a novel approach for the implementation of partial assistance systems (PASs) that can reduce the physical effort of the operator when raising/lowering the FROPS. The proposed methodology, which is based on a reverse engineering approach, was verified by means of a practical case study on a tracklaying tractor. Results achieved can contribute to expanding knowledge on technical solutions aimed at improving the human-machinery interaction in the agricultural sector.


Assuntos
Acidentes de Trabalho , Agricultura , Acidentes de Trabalho/prevenção & controle , Desenho de Equipamento , Segurança de Equipamentos , Ergonomia , Humanos , Equipamentos de Proteção
9.
Artigo em Inglês | MEDLINE | ID: mdl-34444087

RESUMO

Work-related musculoskeletal disorders (WMSDs) are among the most common disorders in any work sector and industry. Ergonomic risk assessment can reduce the risk of WMSDs. Motion capture that can provide accurate and real-time quantitative data has been widely used as a tool for ergonomic risk assessment. However, most ergonomic risk assessments that use motion capture still depend on the traditional ergonomic risk assessment method, focusing on qualitative data. Therefore, this article aims to provide a view on the ergonomic risk assessment and apply current motion capture technology to understand classical mechanics of physics that include velocity, acceleration, force, and momentum in ergonomic risk assessment. This review suggests that using motion capture technologies with kinetic and kinematic variables, such as velocity, acceleration, and force, can help avoid inconsistency and develop more reliable results in ergonomic risk assessment. Most studies related to the physical measurement conducted with motion capture prefer to use non-optical motion capture because it is a low-cost system and simple experimental setup. However, the present review reveals that optical motion capture can provide more accurate data.


Assuntos
Doenças Musculoesqueléticas , Doenças Profissionais , Fenômenos Biomecânicos , Ergonomia , Humanos , Doenças Musculoesqueléticas/etiologia , Doenças Musculoesqueléticas/prevenção & controle , Medição de Risco
10.
Appl Ergon ; 97: 103546, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34399370

RESUMO

This study investigates the effects of a dynamic seat pan design on sitting biomechanics, perceived pain and seat movement compared to a control. Thirty male participants were recruited for two experimental sessions consisting of a 2-h sitting exposure (standardized typing task). Spine angles, back muscle activity, perceived pain and calf circumference were measured pre and post exposure. Sitting in the dynamic condition resulted in lower pain ratings (p = 0.031), decreased calf circumference (p < 0.001), lower average seat pressure (p < 0.001), and greater seat contact area (p = 0.003) compared to the control. Spine angles and low back EMG for all 6 muscles showed no significant differences between chair conditions. These results suggest this dynamic seat pan design is effective at decreasing several negative components associated with sitting for the occupant. Future work should examine the longer-term effects of dynamic office chair features in the field setting with a more generalizable population.


Assuntos
Dor Lombar , Postura , Fenômenos Biomecânicos , Ergonomia , Humanos , Masculino , Percepção da Dor , Coluna Vertebral
11.
Appl Ergon ; 97: 103554, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34399371

RESUMO

Many warehouse slotting algorithms have overlooked worker ergonomics. This research aimed to develop ergonomics slotting guidelines based upon the back and shoulder postures and electromyographic (EMG) responses of the deltoid and erector spinae muscles when individual items are picked from, or full cases replenished to, different shelf heights In the first study of two studies, participants lifted small items representative of piece-pick tasks from seven shelf heights. In the second study, participants performed a simulated full case replenishment task in which they lifted boxes weighing between 2.7 and 10.9 kg from a cart into a flow rack. Shelf height significantly affected all postural and EMG variables and there was a trade-off between back and shoulder muscle activity across the varying shelf heights. Together, these studies were used to develop some general ergonomic slotting guidelines that could be implemented to reduce biomechanical load exposures experienced by distribution center workers.


Assuntos
Ergonomia , Postura , Fenômenos Biomecânicos , Eletromiografia , Humanos , Músculo Esquelético
12.
Top Spinal Cord Inj Rehabil ; 27(3): 12-25, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34456543

RESUMO

Background: Individuals with spinal cord injury (SCI) who use manual wheelchairs (MWCs) have a higher rate of rotator cuff pathology progression than able-bodied individuals. Objectives: This study aimed to test the ability of risk and recovery metrics of arm use to differentiate between (1) MWC users with SCI and matched able-bodied participants (cross-sectional matched-sample study) and (2) MWC users with rotator cuff pathology progression over 1 year from those without pathology progression (longitudinal study). Methods: Thirty-four MWC users and 34 age- and sex-matched able-bodied individuals were recruited. Upper arm risk (humeral elevation >60°) and recovery (static ≥5 seconds and humeral elevation <40°) metrics were calculated from wireless inertial measurement units (IMUs) worn on the upper arms and torso in the free-living environment. Two separate magnetic resonance imaging studies were completed and assessed for a subset of 16 MWC users approximately 1 year apart. Results: The frequency of risk events (p = .019), summated duration of recovery events (p = .025), and duration of each recovery event (p = .003) were higher for MWC users than able-bodied participants. The summated duration of risk events (p = .047), frequency of risk events (p = .027), and risk to recovery ratio (p = .02) were higher and the summated duration of recovery events (p = .036) and frequency of recovery events (p = .047) were lower for MWC users with rotator cuff pathology progression (n = 5) compared to those without progression (n = 11). Conclusion: IMU-derived metrics quantifying arm use at postures >60° and risk to recovery ratios may provide insights of potential risk factors for rotator cuff pathology progression.


Assuntos
Transtornos Traumáticos Cumulativos/fisiopatologia , Ergonomia/métodos , Lesões do Ombro/fisiopatologia , Traumatismos da Medula Espinal/fisiopatologia , Traumatismos da Medula Espinal/reabilitação , Cadeiras de Rodas/efeitos adversos , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco
13.
J Dent Hyg ; 95(4): 70-78, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34376546

RESUMO

Purpose: Although repetitive movements may lead to musculoskeletal pain, static and sedentary postures may be primary contributors to musculoskeletal disorders. The purpose of this pilot study was to determine whether an alternating seated-standing protocol would improve postures, decrease ergonomic risks, and reduce perceived pain scores among dental hygiene students.Methods: Thirty undergraduate dental hygiene students enrolled during the summer term were recruited to participate in the randomized control design pilot study. Participants were randomly assigned to the training (n=15) and control (n=15) groups. The training group alternated between sitting and standing every 30 minutes while providing dental hygiene care. The Modified-Dental Operator Posture Assessment Instrument (M-DOPAI) was used to evaluate ergonomic scores, the Rapid Upper Limb Assessment (RULA) was used to evaluate ergonomic risk, and the Modified-Standardized Nordic Musculoskeletal Questionnaire (M-SNMQ) was used to assess self-reported pain. Photographs were captured and levels of perceived pain were assessed at baseline, week-4, and week-8. Three raters independently evaluated the photographs using the M-DOPAI and RULA. Participants completed a survey about their experiences in the study at the end of week-8. Descriptive statistics and repeated measures ANOVAs were used to analyze the quantitative data; thematic analysis was used to analyze the qualitative data.Results: Although all participants perceived a reduction of pain over the duration of the eight-week study (p<.05), the training group demonstrated no significant differences in ergonomic scores, ergonomic risks, or pain scores at the three time points (p>.05). Qualitatively, participants in the training group perceived that the seated-standing protocol clinically improved their postures and reduced their pain.Conclusion: The results suggest there were minimal impacts of the alternating seated standing protocol on ergonomic scores, ergonomic risks, or perceived pain. More research is needed to determine whether there are objective benefits to an alternating seated-standing protocol.


Assuntos
Doenças Musculoesqueléticas , Dor Musculoesquelética , Doenças Profissionais , Ergonomia , Humanos , Doenças Musculoesqueléticas/prevenção & controle , Higiene Bucal , Projetos Piloto , Postura , Ensaios Clínicos Controlados Aleatórios como Assunto , Postura Sentada , Estudantes
14.
Artigo em Inglês | MEDLINE | ID: mdl-34360068

RESUMO

Thinking in patient safety has evolved over time from more simplistic accident causation models to more robust frameworks of work system design. Throughout this evolution, less consideration has been given to the role of the built environment in supporting safety. The aim of this paper is to theoretically explore how we think about harm as a systems problem by mitigating the risk of adverse events through proactive healthcare facility design. We review the evolution of thinking in safety as a safety science. Using falls as a case study topic, we use a previously published model (SCOPE: Safety as Complexity of the Organization, People, and Environment) to develop an expanded framework. The resulting theoretical model and matrix, DEEP SCOPE (DEsigning with Ergonomic Principles), provide a way to synthesize design interventions into a systems-based model for healthcare facility design using human factors/ergonomics (HF/E) design principles. The DEEP SCOPE matrix is proposed to highlight the design of safe healthcare facilities as an ergonomic problem of design that fits the environment to the user by understanding built environments that support the "human" factor.


Assuntos
Ergonomia , Segurança do Paciente , Acidentes por Quedas , Atenção à Saúde , Instalações de Saúde , Humanos
15.
Artigo em Inglês | MEDLINE | ID: mdl-34360209

RESUMO

Due to the rising popularity of Dental Operating Microscopes, the issue of their ergonomic use has become an important topic. To verify its impact on dental teams' ergonomics, the aspect of working in two distinct environments was examined. The research was performed on a group of 82 dentists regarding the number and character of shifts from the microscopic environment to the macroscopic one. The results revealed the shifts constitute a significant part of an inexperienced DOM operator's work. Because such shifts, when performed repeatedly and in short succession, may influence the operator's vision and comfort, they should be considered ergonomically detrimental. Having indicated the problem, the article puts forth a solution in the form of an instrument transfer methodology. The proposed adjustment has the potential of improving the quality of work for DOM operators quickly and efficiently by significantly reducing the number of shifts between the environments.


Assuntos
Odontologia , Ergonomia , Humanos
16.
BMC Public Health ; 21(1): 1525, 2021 08 09.
Artigo em Inglês | MEDLINE | ID: mdl-34372812

RESUMO

BACKGROUND: The electronics industry is one of the largest global industries, and significant numbers of workers are engaged in this industry. Evidence suggests two associations, including one between ergonomic risks and shoulder disorders and another between psychological stress and psychological problems among workers in this industry. Investigations on ergonomic risks, psychological stress, and sex effects for shoulder disorders in this industry are limited. This study aimed to explore personal and work-related factors associated with shoulder disorders and to investigate the combined effect of similar ergonomic risk factors. METHODS: In this cross-sectional study, 931 workers aged 20 to 58 from an electronics factory in Taiwan were recruited. A Nordic musculoskeletal questionnaire was used to assess shoulder symptoms. Sociodemographic factors and work-related factors, including psychological stress, were assessed. One hundred random sample workers with shoulder symptoms underwent a standardized clinical test for the evaluation of subacromial impingement syndrome. The ergonomic risks were assessed by the risk filter of 'upper limb disorders in the workplace', including repetition, posture, force, vibration, and duration of exposure. RESULTS: The prevalence of shoulder symptoms was 30.5, and 19% of those with shoulder symptoms had subacromial impingement syndrome. In multivariable analyses, older age (adjusted odds ratio (aOR) = 1.37, 95% CI 1.01-1.86), repetition (aOR = 1.73, 95% CI 1.15-2.60) and posture (aOR = 1.85, 95% CI 1.10-3.11) were associated with shoulder symptoms. Regarding the gender effect, older age (aOR = 1.46, 95% CI 1.01-2.11), repetition (aOR = 1.64, 95% CI 1.00-2.68), posture (aOR = 1.89, 95% CI 1.01-3.52), and force (aOR = 1.68, 95% CI 0.99-2.85) were associated with shoulder symptoms in men, whereas posture (aOR = 2.12, 95% CI 0.99-4.57) was associated with symptoms in women. CONCLUSIONS: This study implies that repetition and posture are important risk factors for shoulder disorders in the electronics industry. The risk exhibited sex differences, and force was more important for shoulder disorders in men. Such information is useful to help occupational health practitioners and policy makers conduct preventive programmes on shoulder disorders in this working population. Future longitudinal studies on work-related shoulder disorders are warranted.


Assuntos
Doenças Musculoesqueléticas , Doenças Profissionais , Idoso , Estudos Transversais , Eletrônica , Ergonomia , Feminino , Humanos , Masculino , Doenças Musculoesqueléticas/epidemiologia , Doenças Musculoesqueléticas/etiologia , Doenças Profissionais/epidemiologia , Doenças Profissionais/etiologia , Prevalência , Fatores de Risco , Ombro , Taiwan/epidemiologia
17.
Sensors (Basel) ; 21(15)2021 Jul 29.
Artigo em Inglês | MEDLINE | ID: mdl-34372373

RESUMO

Approximately three of every five workers are affected by musculoskeletal disorders, especially in production environments. In this regard, workstation ergonomic evaluations are especially beneficial for conducting preventive actions. Nevertheless, today's context demonstrates that traditional ergonomic methods should lead to smart ergonomic methods. This document introduces the Forces ergonomic method, designed considering the possibilities of inertial motion capture technology and its applicability to evaluating actual workstations. This method calculates the joint risks for each posture and provides the total risk for the assessed workstation. In this calculation, Forces uses postural measurement and a kinetic estimation of all forces and torques that the joints support during movement. This paper details the method's fundamentals to achieve structural validity, demonstrating that all parts that compose it are logical and well-founded. This method aims to aid prevention technicians in focusing on what matters: making decisions to improve workers' health. Likewise, it aims to answer the current industry needs and reduce musculoskeletal disorders caused by repetitive tasks and lower the social, economic, and productivity losses that such disorders entail.


Assuntos
Doenças Musculoesqueléticas , Doenças Profissionais , Eficiência , Ergonomia , Humanos , Doenças Musculoesqueléticas/prevenção & controle , Doenças Profissionais/prevenção & controle , Postura
18.
Ann Surg Oncol ; 28(10): 5698-5706, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34318384

RESUMO

BACKGROUND: The objective of this study was to examine whether an exercise program and standardized operating room positioning protocol (EOPP) would improve surgeon muscle workload and/or surgeon perception of mental/physical workload for nipple-sparing mastectomy (NSM). METHODS: This prospective study analyzed muscle workload by EMG of four surgeons performing NSM before and after an EOPP. Surveys were administered assessing surgeon perception of mental/physical workload. EMG data were analyzed using repeated-measures ANOVA, controlling for surgeon, first assistant, duration and difficulty of procedure, left or right side, and sequence of the procedure. RESULTS: A total of 56 NSM cases performed by 3 surgeons were analyzed. One surgeon was excluded because of muscle injury and undergoing active physical therapy during the study period. After implementation of the EOPP, the left (P = 0.005) and right (P = 0.020) upper trapezii muscles had a significant decrease in overall ergonomic workload but there was no significant change in overall ergonomic workload for the bilateral cervical erector spinae, anterior deltoid, and lumbar erector spinae muscle groups. When analyzing muscle group exertion by surgeon, there was significant variability in all muscles except the left cervical erector spinae. Following the EOPP, surgeons reported that the procedures were more physically (P = 0.01) and mentally (P = 0.002) demanding and visualization (P = 0.04) was worse. The breast laterality and sequence did not affect muscle exertion. CONCLUSIONS: An EOPP decreased the overall ergonomic workload of one muscle group for surgeons performing NSM but did not impact surgeon perception of mental/physical workload. Further investigation is needed to improve surgeon ergonomics.


Assuntos
Neoplasias da Mama , Cirurgiões , Neoplasias da Mama/cirurgia , Ergonomia , Feminino , Humanos , Mastectomia , Mamilos , Salas Cirúrgicas , Estudos Prospectivos , Carga de Trabalho
19.
Appl Ergon ; 97: 103518, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34246074

RESUMO

The availability of keyboards with reduced key width has been recently promoted as an ergonomic aid for small-handed pianists to overcome any potential physical disadvantages that may restrict their piano repertoire. However, a lack of biomechanical data exists to support whether reduced piano key size is effective in achieving this outcome. This research investigates the effect of playing on three different key width size pianos (5.5-inch octave, 6.0-inch octave and conventional size with 6.5-inch octave) on hand, arm and shoulder muscle activity levels according to the hand size of the pianists. Results indicate that piano key size affects the muscle activity levels of selected muscles. Furthermore, this effect of different key sizes changed according to the players' hand spans. Small-handed pianists may benefit from using smaller-sized keyboards to reduce muscular exertion during performance. This investigation provides preliminary EMG data supporting the use of different size keyboards to improve the ergonomic fit according to the dimensions of individual pianists.


Assuntos
Música , Ergonomia , Mãos , Humanos , Músculo Esquelético
20.
Appl Ergon ; 97: 103528, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34256321

RESUMO

Additive Manufacturing (AM) facilitates product personalization and iterative design, which makes it an ideal technology for ergonomic product development. In this study, a systematic review was conducted of the literature regarding the use of AM in ergonomic-product design, and methodological aspects of the studies were analyzed. A literature search was performed using the keywords "3D print*," "additive manufacturing," "ergonomic*" and "human factors". Included were studies reporting the use of AM specifically in ergonomic design of products/prototypes including the detailing of an ergonomic testing methodology used for evaluation. Forty studies were identified pertaining to the fields of medicine, assistive technology, wearable technology, hand tools, testing devices and others. The most commonly used technology was fused deposition modeling with polylactic acid, but the overall preferred material was acrylonitrile butadiene styrene. Various combinations of objective/subjective and qualitative/quantitative product evaluation methods were used. Based on the findings, recommendations were developed to facilitate the choice of most suitable AM technologies and materials for specific applications in ergonomics.


Assuntos
Impressão Tridimensional , Tecnologia , Ergonomia , Humanos
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