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Ribé L, Candela E, Gálvez L, Arrébola M, Plana E, Miralles M. Comparison of Three Workstations For Abdominal Aortic Aneurysm Sizing: Impact in Decision Making and Graft Selection. J Endovasc Ther 2024; 31:295-304. [PMID: 36124870 DOI: 10.1177/15266028221120767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
PURPOSE The aim of this study was to assess the agreement of multiplanar reconstruction (MPR) and semiautomated central lumen line (CLL) analysis of abdominal aortic aneurysms (AAA), with 3 different software workstations (WS1, WS2, WS3) and 2 experienced practitioners as well as to analyze its eventual impact in graft selection. MATERIALS AND METHODS Twenty computed tomography (CT) angiography data sets were randomly chosen from a series of 100 consecutive studies. Measurements were performed twice by each reader, in random order, and included 8 parameters (5 diameters and 3 lengths). Each observer performed a complete set of 60 studies. Intra-observer and interobserver variability for every WS was assessed. Measurements were evaluated using Bland-Altman analysis, correlation coefficients (r), and concordance correlation coefficients (CCC [95% confidence interval (CI)]). RESULTS A high overall agreement between repeated measurements for both observers was obtained (r=0.989; CCC=0.988 [0.982-0.992] and r=0.998; CCC=0.996 [0.994-0.997], for observers 1 and 2, respectively). However, reproducibility for individual parameters was excellent for observer 2 and only moderate for observer 1. A high overall agreement was obtained for interobserver concordance (r=0.987; CCC=0.986 [0.982-0.989]). When analyzing for individual parameters, greatest interobserver differences were found at CLL measurement of the diameter of aortic neck (WS2) and bifurcation (WS1 and WS2) as well as iliac diameter in all 3 WS for both CLL and MPR. Similar differences were observed in paired comparison between WS when involving these parameters. Careful inspection of Bland-Altman charts revealed some cases of disagreement between WS and observers that would affect decision making on graft selection, changing the neck diameter to a different size, in 2 cases when measuring with WS1, and iliac diameter in 4 cases (2 of them with WS1 and 2 with WS2). Greatest discordance was observed regarding ipsilateral iliac length affecting 7 measurements that would lead to change the length of the selected limb graft (2 with WS1, 3 with WS2, and 2 with WS3). CONCLUSIONS Although a high agreement between different observers using different WS for AAA measurements is to be expected, small differences may lead to the selection of a different graft size. The use of a single software by experienced users, and double check by a different one, may be advisable. CLINICAL IMPACT Influence of inter and intraobserver variability in CT measurements during planning of endovascular aneurysm repair (EVAR) has been extensively reviewed. However, its impact in graft selection (final choose of diameter and lengths) has been scarcely analyzed. The results of this study suggest that, although a high agreement between different observers using different workstations for AAA measurements is to be expected, small differences may lead to the selection of a different graft size. The use of a single software by experienced users, and double check by a different one, may be advisable.
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Affiliation(s)
- Lucas Ribé
- Hospital Universitari i Politecnic La Fe, Valencia, Spain
| | - Eliseo Candela
- Hospital Universitari i Politecnic La Fe, Valencia, Spain
| | - Laura Gálvez
- Hospital Universitari i Politecnic La Fe, Valencia, Spain
| | - Manel Arrébola
- Hospital Universitari i Politecnic La Fe, Valencia, Spain
| | | | - Manuel Miralles
- Hospital Universitari i Politecnic La Fe, Valencia, Spain
- Surgery Department, University of Valencia (UV), Spain
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Figueira V, Silva S, Costa I, Campos B, Salgado J, Pinho L, Freitas M, Carvalho P, Marques J, Pinho F. Wearables for Monitoring and Postural Feedback in the Work Context: A Scoping Review. Sensors (Basel) 2024; 24:1341. [PMID: 38400498 PMCID: PMC10893004 DOI: 10.3390/s24041341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/06/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024]
Abstract
Wearables offer a promising solution for simultaneous posture monitoring and/or corrective feedback. The main objective was to identify, synthesise, and characterise the wearables used in the workplace to monitor and postural feedback to workers. The PRISMA-ScR guidelines were followed. Studies were included between 1 January 2000 and 22 March 2023 in Spanish, French, English, and Portuguese without geographical restriction. The databases selected for the research were PubMed®, Web of Science®, Scopus®, and Google Scholar®. Qualitative studies, theses, reviews, and meta-analyses were excluded. Twelve studies were included, involving a total of 304 workers, mostly health professionals (n = 8). The remaining studies covered workers in the industry (n = 2), in the construction (n = 1), and welders (n = 1). For assessment purposes, most studies used one (n = 5) or two sensors (n = 5) characterised as accelerometers (n = 7), sixaxial (n = 2) or nonaxialinertial measurement units (n = 3). The most common source of feedback was the sensor itself (n = 6) or smartphones (n = 4). Haptic feedback was the most prevalent (n = 6), followed by auditory (n = 5) and visual (n = 3). Most studies employed prototype wearables emphasising kinematic variables of human movement. Healthcare professionals were the primary focus of the study along with haptic feedback that proved to be the most common and effective method for correcting posture during work activities.
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Affiliation(s)
- Vânia Figueira
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
- H2M—Health and Human Movement Unit, Polytechnic University of Health, Cooperativa de Ensino Superior Politécnico e Universitário, CRL 4760-409 Vila Nova de Famalicão, Portugal
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Rua Dr. Plácido da Costa, 91, 4200-450 Porto, Portugal
| | - Sandra Silva
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
- H2M—Health and Human Movement Unit, Polytechnic University of Health, Cooperativa de Ensino Superior Politécnico e Universitário, CRL 4760-409 Vila Nova de Famalicão, Portugal
- School of Health Sciences, University of Aveiro, 3810-193 Aveiro, Portugal
- Department of Medical Sciences, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Inês Costa
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
| | - Bruna Campos
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
| | - João Salgado
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
| | - Liliana Pinho
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
- H2M—Health and Human Movement Unit, Polytechnic University of Health, Cooperativa de Ensino Superior Politécnico e Universitário, CRL 4760-409 Vila Nova de Famalicão, Portugal
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Rua Dr. Plácido da Costa, 91, 4200-450 Porto, Portugal
- Center for Rehabilitation Research (Cir), R. Dr. António Bernardino de Almeida 400, 4200-072 Porto, Portugal
| | - Marta Freitas
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
- H2M—Health and Human Movement Unit, Polytechnic University of Health, Cooperativa de Ensino Superior Politécnico e Universitário, CRL 4760-409 Vila Nova de Famalicão, Portugal
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Rua Dr. Plácido da Costa, 91, 4200-450 Porto, Portugal
- Center for Rehabilitation Research (Cir), R. Dr. António Bernardino de Almeida 400, 4200-072 Porto, Portugal
| | - Paulo Carvalho
- Center for Translational Health and Medical Biotechnology Research, School of Health, Polytechnic Institute of Porto, 4200-072 Porto, Portugal;
| | - João Marques
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
- H2M—Health and Human Movement Unit, Polytechnic University of Health, Cooperativa de Ensino Superior Politécnico e Universitário, CRL 4760-409 Vila Nova de Famalicão, Portugal
| | - Francisco Pinho
- Escola Superior de Saúde do Vale do Ave, Cooperativa de Ensino Superior Politécnico e Universitário, Rua José António Vidal, 81, 4760-409 Vila Nova de Famalicão, Portugal; (S.S.); (I.C.); (B.C.); (J.S.); (L.P.); (M.F.); (J.M.); (F.P.)
- H2M—Health and Human Movement Unit, Polytechnic University of Health, Cooperativa de Ensino Superior Politécnico e Universitário, CRL 4760-409 Vila Nova de Famalicão, Portugal
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Murni IP, Ardiyanto A. Cross-cultural adaptation and reliability assessment of the Indonesian version of the Computer Workstation Ergonomics: Self-Assessment Checklist. Work 2024; 77:711-717. [PMID: 37742687 DOI: 10.3233/wor-230201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2023] Open
Abstract
BACKGROUND Prolonged use of computer devices can have adverse health effects, but these can be mitigated by setting up computer workstations according to ergonomic principles. The Computer Workstation Ergonomics: Self-Assessment Checklist can guide workers in implementing these principles. However, the checklist is only available in English, which may reduce the accuracy of the instrument when used by non-English speakers, including Indonesians. OBJECTIVE The objective of this study was to cross-culturally adapt the Computer Workstation Ergonomics: Self-Assessment Checklist for use in Indonesia. Additionally, a reliability assessment was conducted on the adapted checklist. METHODS This study followed a six-stage cross-cultural adaptation process, including translation, synthesis of translation, back translation, expert committee review, pretesting, and documentation submission. The final version of the adapted checklist underwent testing for intra-rater reliability, inter-rater reliability, and internal consistency. RESULTS The cross-cultural adaptation process resulted in an Indonesian version of the Computer Workstation Ergonomics: Self-Assessment Checklist. Furthermore, the Krippendorff's alpha values for the intra-rater and inter-rater reliability of the adapted checklist ranged from 0.59 to 0.78 (mean = 0.70) and 0.20 to 0.82 (mean = 0.56), respectively. CONCLUSION The study produced an Indonesian version of the Computer Workstation Ergonomics: Self-Assessment Checklist that had an adequate reliability. The adapted checklist can serve as a practical tool for evaluating and improving computer workstations in Indonesia.
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Affiliation(s)
- Indah Puspa Murni
- Department of Mechanical and Industrial Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Ardiyanto Ardiyanto
- Department of Mechanical and Industrial Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia
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Atias-Etzion S, Azuri J. Musculoskeletal Pains among Phlebotomists in Outpatient Clinics: Prevalence and Association with Personal Factors and Ergonomic Analysis of the Workstation. Lab Med 2023; 54:241-247. [PMID: 36282339 DOI: 10.1093/labmed/lmac106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023] Open
Abstract
OBJECTIVE To investigate the prevalence of musculoskeletal problems reported by phlebotomists, and the association of these problems with workstation characteristics and personal factors. METHODS Self-administered questionnaires were distributed to phlebotomists (n = 115; 65.2% response rate). In addition to the Nordic Musculoskeletal Questionnaire, we asked respondents to provide sociodemographic data. An ergonomic score was used for the characterization of workstations. RESULTS Symptoms in at least 1 body area within a year were reported by 80.7% of the participants. The lower back, neck, and shoulders were the most common areas in which symptoms occurred (72.7%, 60.9%, and 59%, respectively); these were also the areas with the highest incidence of symptoms disrupting work. A logistic regression model for predicting pain within a year found adequate leg space as a significant component of the ergonomic score (P = .045, OR = 0.222), which was also a protective factor for neck pain disrupting work (P = .047, OR = 0.385). CONCLUSIONS Musculoskeletal problems among phlebotomists were high. Therefore, the positive effects of simple ergonomic measures should be confirmed in further research.
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Affiliation(s)
- Sigal Atias-Etzion
- Physical Therapy Department, Maccabi Healthcare Services, Tel Aviv, Israel, and
| | - Joseph Azuri
- Sackler Faculty of Medicine, Tel Aviv University Israel and Maccabi Healthcare Services, Tel Aviv, Israel
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Abstract
OBJECTIVE To investigate the effect of one's sex and pedaling intensity on upper body muscle activation patterns during typing while cycling. BACKGROUND Females are at a higher risk for computer work-related musculoskeletal disorders, and mobile workstations have been suggested to induce healthier muscular patterns compared with sitting. However, the neuromuscular characteristics of performing computer work in a cycling workstation have not been investigated. METHOD Twenty-two participants (10 females) completed a 60-min computer typing task while pedaling on a cycle ergometer at two different intensities (25%, 4% heart rate reserve). Surface electromyography (EMG) was recorded from seven muscles of the upper body. Effects of time, sex, and intensity were assessed for muscle activation (RMS), activation variability (CV), and normalized mutual information (NMI) via generalized estimating equations. RESULTS With time, neck/shoulder CV increased in males during higher pedaling intensity, whereas in females it decreased during lower intensity. In females, RMS of neck/shoulder and NMI of neck/shoulder muscle pairs were lower, whereas forearm RMS was 34.2% higher with higher intensity cycling compared with lower intensity. Lower back RMS decreased 28.3% in the initial half of the task in females, but in males it increased 14.4% in the later half. CONCLUSION AND APPLICATION Cycling workstation showed a sex- and intensity-specific EMG response. These differing responses should be considered when implementing the use of cycling workstation and may be important for preventing/managing sex-specific muscle fatigue and musculoskeletal disorders.
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Affiliation(s)
- SangHoon Yoon
- McGill University, Montreal, Quebec, Canada
- Feil & Oberfeld/CRIR Research Center, Jewish Rehabilitation Hospital, Laval, Quebec, Canada
| | - Thierry Lefrançois-Daignault
- McGill University, Montreal, Quebec, Canada
- Feil & Oberfeld/CRIR Research Center, Jewish Rehabilitation Hospital, Laval, Quebec, Canada
| | - Julie N Côté
- McGill University, Montreal, Quebec, Canada
- Feil & Oberfeld/CRIR Research Center, Jewish Rehabilitation Hospital, Laval, Quebec, Canada
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Yamamuro O, Tsukijima M. [Effects of Image-based Noise Reduction Software on Magnetic Resonance Imaging]. Nihon Hoshasen Gijutsu Gakkai Zasshi 2021; 77:1416-1423. [PMID: 34924478 DOI: 10.6009/jjrt.2021_jsrt_77.12.1416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In magnetic resonance imaging (MRI) examinations, a trade-off is noted among acquisition time, resolution, and signal-to-noise ratio (SNR). High-resolution images are expected to improve the detection of small lesions. However, to ensure a high SNR, the imaging time must be extended. If the number of additions is reduced to shorten the imaging time, a reduction in slice thickness and in-plane resolution is necessary to ensure an adequate SNR. A combination of acceleration and denoising using deep learning has been previously reported. However, although it may be useful as a noise reduction technique onboard device, it cannot be used for general purposes. We studied the effects of a recently developed general-purpose image-based noise reduction software on MRI by measuring SNR and other parameters such as contrast, resolution, and noise power spectrum (NPS). NPS was influenced by the difference in processing mode, whereas contrast remained uninfluenced. Regarding resolution, the edge information was retained and was found to be better in iNoir 3D than in iNoir 2D. However, owing to the increased intensity of noise-reduction processing, the slope of the edge in the low-contrast area was smoothed, presenting a visually blurred impression.
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Affiliation(s)
- Osamu Yamamuro
- Department of Imaging Technology, East Nagoya Imaging Diagnosis Center.,Department of Imaging Technology, Nagoya Kyoritsu Hospital
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Kyung G, Park S. Curved Versus Flat Monitors: Interactive Effects of Display Curvature Radius and Display Size on Visual Search Performance and Visual Fatigue. Hum Factors 2021; 63:1182-1195. [PMID: 32374635 DOI: 10.1177/0018720820922717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
OBJECTIVE The aim of this study is to examine the interactive effects of display curvature radius and display size on visual search accuracy, visual search speed, and visual fatigue. BACKGROUND Although the advantages of curved displays have been reported, little is known about the interactive effects of display curvature radius and size. METHOD Twenty-seven individuals performed visual search tasks at a viewing distance of 50 cm using eight configurations involving four display curvature radii (400R, 600R, 1200R, and flat) and two display sizes (33″ and 50″). To simulate curved screens, five flat display panels were horizontally arranged with their centers concentrically repositioned following each display curvature radius. RESULTS For accuracy, speed, and fatigue, 33″-600R and 50″-600R provided the best or comparable-to-best results, whereas 50″-flat provided the worst results. For accuracy and fatigue, 33″-flat was the second worst. The changes in the horizontal field of view and viewing angle due to display curvature as well as the association between effective display curvature radii and empirical horopter (loci of perceived equidistance) can explain these results. CONCLUSION The interactive effects of display curvature radius and size were evident for visual search performance and fatigue. Beneficial effects of curved displays were maintained across 33″ and 50″, whereas increasing flat display size from 33″ to 50″ was detrimental. APPLICATION For visual search tasks at a viewing distance of 50 cm, 33″-600R and 50″ 600R displays are recommended, as opposed to 33″ and 50″ flat displays. Wide flat displays must be carefully considered for visual display terminal tasks.
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Radosz J. Effects of Tonal Noise on Workers' Annoyance and Performance. Noise Health 2021; 23:117-127. [PMID: 34975127 PMCID: PMC8772441 DOI: 10.4103/nah.nah_28_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Objective Numerous references indicate that the subjectively assessed tonal noise annoyance is higher than that of broadband noise. There are no criteria for the impact of tonal noise in assessing the occupational environment for both indoor areas and workplaces. Materials and Methods The study participants included 50 people who met the audiometric qualification criteria. The research method employed both a questionnaire survey and computer psychological tests checking work performance, attention level, and memory. Four types of generated test signals were developed (filtered noise - A and three signals with tonal components 125, 1600, and 8000 Hz - B, C, and D) at the same sound level A of 55 dB. Test signals C and D were assessed as causing the greatest annoyance and as the loudest. Results The results of some tests and the assessment of annoyance and of the volume of test signals containing medium and high frequency tonal components were correlated with the participants' noise sensitivity, determined on the basis of a questionnaire. Although there are no statistically significant differences, it was observed in most cases for signals with C (1600 Hz) and D (8000 Hz) tonal components that the results (mean values or median values) of psychological tests deteriorated with respect to a noise signal without tonal components (A) - a smaller number of calculations, a smaller number of correct responses, more errors made. Conclusion These results, combined with those of the questionnaire survey, justify the introduction of the tonality annoyance criterion for workstations where, among other things, focusing one's attention is required.
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Affiliation(s)
- Jan Radosz
- Central Institute for Labour Protection, National Research Institute, Czerniakowska 16, Warsaw, Poland
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Awada M, Lucas G, Becerik-Gerber B, Roll S. Working from home during the COVID-19 pandemic: Impact on office worker productivity and work experience. Work 2021; 69:1171-1189. [PMID: 34420999 DOI: 10.3233/wor-210301] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND With the COVID-19 pandemic, organizations embraced Work From Home (WFH). An important component of transitioning to WFH is the effect on workers, particularly related to their productivity and work experience. OBJECTIVES The objective of this study is to examine how worker-, workspace-, and work-related factors affected productivity and time spent at a workstation on a typical WFH day during the pandemic. METHODS An online questionnaire was designed and administered to collect the necessary information. Data from 988 respondents were included in the analyses. RESULTS Overall perception of productivity level among workers did not change relative to their in-office productivity before the pandemic. Female, older, and high-income workers were likely to report increased productivity. Productivity was positively influenced by better mental and physical health statuses, having a teenager, increased communication with coworkers and having a dedicated room for work. Number of hours spent at a workstation increased by approximately 1.5 hours during a typical WFH day. Longer hours were reported by individuals who had school age children, owned an office desk or an adjustable chair, and had adjusted their work hours. CONCLUSION The findings highlight key factors for employers and employees to consider for improving the WFH experience.
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Affiliation(s)
- Mohamad Awada
- Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA, USA
| | - Gale Lucas
- USC Institute for Creative Technologies, University of Southern California, Los Angeles, CA, USA
| | - Burcin Becerik-Gerber
- Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA, USA
| | - Shawn Roll
- Chan Division of Occupational Science andOccupational Therapy, University of Southern California, LosAngeles, CA, USA
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Naber A, Willhite L, Lucas Molitor W. Exploration of individualized goals and ergonomic modifications to address sedentary behaviors and perceived health and well-being among office workers. Work 2021; 68:1133-1142. [PMID: 33843719 DOI: 10.3233/wor-213443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Office workers spend significant time in sedentary behaviors. Exploration of interventions to address this concern is warranted. OBJECTIVE This study explored the impact of individualized goals and ergonomic modifications on sedentary behaviors and perceived health and well-being among office workers. METHODS A six-week, one-group, pre- and post-test design was utilized to assess sedentary behaviors and perceptions of health and well-being among office workers using the RAND 36-Item Short Form Survey (SF-36), Numerical Pain Rating Scale (NPRS), Pittsburgh Sleep Quality Index (PSQI), Sedentary Behavior Questionnaire (SBQ), actigraphy, and a workstation assessment. RESULTS Statistically significant improvements were noted from pre- to post-test on the RAND SF-36 for energy/fatigue (p = 0.000) and emotional well-being (p = 0.049) and subjective sleep quality using the PSQI (p = 0.005). Participants (n = 17) could set up to two goals related to health and well-being. A majority of the 31 established goals were met: increase physical activity (n = 11/16), reduce sedentary behavior (n = 8/11), and improve personal health (n = 3/4). CONCLUSIONS The use of individualized goals and ergonomic modifications is effective for addressing perceived health and well-being among office workers. However, limited statistical significance was found regarding the impact of these interventions on sedentary behaviors or activity levels.
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Seva RR, Tejero LMS, Fadrilan‐Camacho VFF. Barriers and facilitators of productivity while working from home during pandemic. J Occup Health 2021; 63:e12242. [PMID: 34181307 PMCID: PMC8238055 DOI: 10.1002/1348-9585.12242] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/25/2021] [Accepted: 06/02/2021] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVES This study aims to characterize the working environment, stress levels, and psychological detachment of employees working from home during the COVID-19 pandemic in the Philippines and investigate their relationship to productivity and musculoskeletal symptoms. METHODS Structural equation modeling was used to examine the direct effect of workstation characteristics, stress, and musculoskeletal symptoms to productivity and the indirect effect of psychological detachment to productivity. Data were gathered from a survey of employees working from home during the pandemic from different industries (n = 352). Multigroup analysis was also conducted to determine the effect of age, having a spouse, and having children less than 18 years old, to the model. RESULTS Ergonomic suitability of the workstation (WES) has a significant effect on musculoskeletal symptoms (MSS) (β = -0.31, SE = 0.06; p < .001). Both workstation suitability (β = -0.24, SE = 0.03; p < .001) and workstation ergonomic suitability (β = -0.18, SE = 0.01; p < .01) inversely affect STR. Psychological detachment has a significant inverse effect on stress (β = -0.31, SE = 0.07; p < .001) and stress has a significant negative effect on productivity (β = -0.13, SE = 0.09; p = .03). Multigroup analyses showed that stress significantly affected the productivity of those without spouses and young employees. CONCLUSION Workstation suitability helps improve the productivity of people working from home while stress negatively affects it. Workstation ergonomic suitability and musculoskeletal symptoms have no significant effect.
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Affiliation(s)
- Rosemary R. Seva
- Industrial & Systems EngineeringGokongwei College of EngineeringDe La Salle UniversityManilaPhilippines
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Nakatsuka K, Tsuboi Y, Okumura M, Murata S, Isa T, Kawaharada R, Matsuda N, Uchida K, Horibe K, Kogaki M, Ono R. Association between comprehensive workstation and neck and upper-limb pain among office worker. J Occup Health 2021; 63:e12194. [PMID: 33534962 PMCID: PMC7857724 DOI: 10.1002/1348-9585.12194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 11/03/2020] [Accepted: 11/16/2020] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVES Our study aimed to investigate the association between comprehensive workstations and neck and upper-limb pain (NUP) among office workers. METHODS This cross-sectional study included 307 office workers (median age, 39 years; 88% men). Workstations (presence of armrest, armrest position, number of monitors used, mouse position, mouse usage, keyboard usage, and keyboard position) were investigated in terms of 17 items and judged as "adequate" or "inadequate." NUP was assessed using a numerical rating scale. NUP locations included the neck, shoulder, elbow, and wrist. In the statistical analysis, outcome variables were the presence of pain in each part, while explanatory variables were the number of inadequate workstations. Logistic regression analyses were conducted with adjustment for age, gender, working duration, and exercise habit. RESULTS The prevalence of neck pain was 47% (n = 143), shoulder pain was 50% (n = 153), elbow pain was 7.2% (n = 22), and wrist pain was 13% (n = 40). In the adjusted model, the number of inadequate workstations had significant positive associations with elbow pain (odds ratio [OR], 1.39; 95% confidence interval [CI], 1.06.1.81) and wrist pain (OR, 1.80; 95% CI, 1.17.2.26). However, the number of inadequate workstations was not significantly associated with neck pain or shoulder pain. CONCLUSIONS Workstation-related factors (presence of armrest, armrest position, mouse usage, and keyboard usage) were significantly associated with elbow and wrist pain. Our findings suggest that workstations can contribute to elbow and wrist pain in office workers.
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Affiliation(s)
- Kiyomasa Nakatsuka
- Department of Public HealthGraduate School of Health SciencesKobe UniversityKobeJapan
| | - Yamato Tsuboi
- Department of Public HealthGraduate School of Health SciencesKobe UniversityKobeJapan
- Japan Society for the Promotion of ScienceChiyodaJapan
| | - Maho Okumura
- Division of Rehabilitation MedicineKobe University HospitalKobeJapan
| | - Shunsuke Murata
- Department of Preventive Medicine and EpidemiologyNational Cerebral and Cardiovascular Center Research InstituteOsakaJapan
| | - Tsunenori Isa
- Department of Public HealthGraduate School of Health SciencesKobe UniversityKobeJapan
| | - Rika Kawaharada
- Department of Public HealthGraduate School of Health SciencesKobe UniversityKobeJapan
| | - Naoka Matsuda
- Division of Rehabilitation MedicineKobe Mariners HospitalKobeJapan
| | - Kazuaki Uchida
- Department of Public HealthGraduate School of Health SciencesKobe UniversityKobeJapan
| | - Kana Horibe
- Department of Public HealthGraduate School of Health SciencesKobe UniversityKobeJapan
| | | | - Rei Ono
- Department of Public HealthGraduate School of Health SciencesKobe UniversityKobeJapan
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Kuijer PPFM, van der Pas J, van der Molen HF. Work Disabling Nerve Injury at Both Elbows Due to Laptop Use at Flexible Workplaces inside an Office: Case-Report of a Bilateral Ulnar Neuropathy. Int J Environ Res Public Health 2020; 17:ijerph17249529. [PMID: 33352652 PMCID: PMC7766745 DOI: 10.3390/ijerph17249529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 12/12/2020] [Accepted: 12/15/2020] [Indexed: 11/16/2022]
Abstract
Background: This case report describes whether a female civil servant who developed bilateral ulnar neuropathy can be classified as having an occupational disease. Methods: The Dutch six-step protocol for the assessment and prevention of occupational diseases is used. Results: Based on the six-step protocol, we propose that pressure on the ulnar nerve in the elbow region precipitated the neuropathy for this employee while working prolonged periods in elbow flexion with a laptop. Conclusion: Despite the low incidence laptop use might be a risk factor for the occurrence of ulnar neuropathy due to prolonged pressure on the elbow. Employers and workers need to be educated about this disabling occupational injury due to laptop use and about protective work practices such as support for the upper arm and elbow. This seems especially relevant given the trend of more flexible workspaces inside and outside offices, and given the seemingly safe appearance of laptop use.
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Affiliation(s)
- P. Paul F. M. Kuijer
- Department of Public and Occupational Health, Netherlands Centre for Occupational Diseases, Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, 1105 Amsterdam, The Netherlands;
- Correspondence: ; Tel.: +31-20-566-5339
| | - Joris van der Pas
- Self-Employed Occupational Physician, 5221 Den Bosch, The Netherlands;
| | - Henk F. van der Molen
- Department of Public and Occupational Health, Netherlands Centre for Occupational Diseases, Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, 1105 Amsterdam, The Netherlands;
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Jasmine M, Fasna L, Chellaiyan VG, Raja VP, Ravivarman G. A study on knowledge and practice of Ergonomics among the Software Engineers in a private firm, Chennai, Tamil Nadu. J Family Med Prim Care 2020; 9:4287-4291. [PMID: 33110847 PMCID: PMC7586624 DOI: 10.4103/jfmpc.jfmpc_848_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/14/2020] [Accepted: 07/07/2020] [Indexed: 12/02/2022] Open
Abstract
Background and Aims: Due to multiple reasons like prolonged sitting and postural demands, software engineers are prone to develop musculoskeletal problems, which can be easily alleviated by practicing proper Ergonomic posture in their workstation. The main objective of the study was to assess the knowledge of Ergonomics Principles and Workplace Practice among the software engineers working in a private firm. Methodology: This was a cross-sectional study conducted among 403 software engineers working in a private firm, Chennai. Results: Among the 403 study participants, 85.6% had musculoskeletal problem in any area of focus. Only 9% had adequate ergonomic knowledge and only fewer among them practice it adequately. Conclusion: The study revealed higher prevalence of musculoskeletal problem, lower prevalence of knowledge about Ergonomic principles and much lower prevalence of appropriate practice of Ergonomic principles. This can be alleviated by a simple primary care like ergonomic education and practising.
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Affiliation(s)
- M Jasmine
- Department of Community Medicine, Shri Sathya Sai Medical College and Research Institute, Sri Balaji Vidyapeeth (SBV)- Deemed to be University, Ammapettai, Nellikuppam, Chengalpet Taluk, Kancheepuram District, Tamil Nadu, India
| | - L Fasna
- Department of Community Medicine, Shri Sathya Sai Medical College and Research Institute, Sri Balaji Vidyapeeth (SBV)- Deemed to be University, Ammapettai, Nellikuppam, Chengalpet Taluk, Kancheepuram District, Tamil Nadu, India
| | - Vinoth Gnana Chellaiyan
- Department of Community Medicine, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, Tamil Nadu, India
| | - V Pragadeesh Raja
- Department of Community Medicine, Shri Sathya Sai Medical College and Research Institute, Sri Balaji Vidyapeeth (SBV)- Deemed to be University, Ammapettai, Nellikuppam, Chengalpet Taluk, Kancheepuram District, Tamil Nadu, India
| | - G Ravivarman
- Department of Community Medicine, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, Tamil Nadu, India
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Wahlström V, Fjellman-Wiklund A, Harder M, Slunga Järvholm L, Eskilsson T. Implementing a Physical Activity Promoting Program in a Flex-Office: A Process Evaluation with a Mixed Methods Design. Int J Environ Res Public Health 2019; 17:ijerph17010023. [PMID: 31861424 PMCID: PMC6982266 DOI: 10.3390/ijerph17010023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/13/2019] [Accepted: 12/14/2019] [Indexed: 12/12/2022]
Abstract
The aim of this study was to investigate facilitating and hindering factors when implementing a physical activity (PA)-promoting program among office workers moving to a flex office, by conducting a process evaluation. Additionally, we evaluated self-reported and perceived PA behaviors. With a mixed methods design, analyses were based upon data from interviews with 70 employees and repeated questionnaires from 152 employees. The PA-promoting program was fully implemented and supported by management. There was a strong health promoting culture, encouraging PA in the organization already at the start of the study. The lecture and the office design were rated as the most motivating program components. The use of stairs, breaks during meetings and social acceptance for standing and walking at work increased. Employees described a strive for variation, and how managers, the office environment, productivity and ergonomic aspects influenced sedentary behavior (SB) and PA. The need for the PA-promoting program was questioned, and the timing of the program was debated. To conclude, a strong organizational health culture combined with a facilitating physical environment can create sustainable positive PA behaviors in office settings. A thorough understanding of organizational needs and a participatory process are needed to tailor organizational interventions to decrease SB.
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Affiliation(s)
- Viktoria Wahlström
- Department of Public Health and Clinical Medicine, Section for Sustainable Health, Umeå University, 90187 Umeå, Sweden;
- Correspondence:
| | - Anncristine Fjellman-Wiklund
- Department of Community Medicine and Rehabilitation, Section of Physiotherapy, Umeå University, 90187 Umeå, Sweden; (A.F.-W.); (T.E.)
| | - Mette Harder
- Umeå School of Architecture, Umeå University, 90187 Umeå, Sweden;
| | - Lisbeth Slunga Järvholm
- Department of Public Health and Clinical Medicine, Section for Sustainable Health, Umeå University, 90187 Umeå, Sweden;
| | - Therese Eskilsson
- Department of Community Medicine and Rehabilitation, Section of Physiotherapy, Umeå University, 90187 Umeå, Sweden; (A.F.-W.); (T.E.)
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Sharma PP, Mehta RK, Pickens A, Han G, Benden M. Sit-Stand Desk Software Can Now Monitor and Prompt Office Workers to Change Health Behaviors. Hum Factors 2019; 61:816-824. [PMID: 30296174 PMCID: PMC6637722 DOI: 10.1177/0018720818807043] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/24/2018] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To determine the effectiveness of a computer-based intervention designed to increase sit-stand desk usage and help reverse workplace physical inactivity. BACKGROUND Sit-stand desks have been successful in reducing workplace sedentary behavior, but the challenge remains for an effective method to increase the usage in order to experience the health and productivity benefits. METHOD Data collection (1-year field study with 194 workers) used a novel method of computer software that continuously recorded objective electric sit-stand desk usage, while taking into account the time a worker spends away from their desk (breaks, meetings). During the baseline period, all workers' desk usage was recorded by the software, and the intervention period consisted of software reminders and real-time feedback to all workers to change desk positions. Pooled means were calculated to determine desk usage patterns, and effect sizes and pairwise mean differences were analyzed to test for intervention significance. RESULTS The intervention doubled desk usage by increasing ~1 change to ~2 changes per work day. There was a 76% reduction in workers who never used the sit-stand function of the desk. Medium to large effect sizes from the intervention were observed in all three primary outcome measures (desk in sitting/standing position and desk position changes per work day). CONCLUSION These findings demonstrate an effective intervention that increased postural transitioning and interrupted prolonged inactivity while remaining at the workstation. APPLICATION The methods and results in this research study show that we can quantify an increase in desk usage and collect aggregate data continuously.
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Affiliation(s)
- Pankaj Parag Sharma
- Pankaj Parag Sharma, Department of Environmental & Occupational Health, School of Public Health, Texas A&M University, 109 SPH Administration Building, College Station, TX 77843-1266, USA; e-mail:
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17
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Ailneni RC, Syamala KR, Kim IS, Hwang J. Influence of the wearable posture correction sensor on head and neck posture: Sitting and standing workstations. Work 2019; 62:27-35. [PMID: 30741711 DOI: 10.3233/wor-182839] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Flexed head and neck postures are associated with the development of neck pain in the office environment. There is little evidence regarding whether a wearable posture sensor would improve the head and neck postures of office workers. OBJECTIVE The aim of this study was to evaluate the effect of the wearable posture sensor on the posture and physical demands on the head and neck during office work. METHODS Nineteen participants performed a typing task with and without the wearable sensor in the sitting and standing positions. They were allowed to adjust their workstation during the experiment based on a psychophysical method. The flexion angles of the head and neck, the gravitational moment on the neck, and the positions of the workstation components were measured. RESULTS On average, participants with the wearable sensor had 8% lower neck flexion angles and 14% lower gravitational moments on the neck than those of participants without the wearable sensor. The effect of the wearable sensor on reducing postural stress of the neck was more significant when using the standing workstation compared to the sitting workstation. CONCLUSIONS The wearable posture sensor could be an effective tool to alleviate the postural stress of the neck in the office setting.
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Affiliation(s)
- Ravi Charan Ailneni
- Department of Industrial and Systems Engineering, Northern Illinois University, DeKalb IL, USA
| | - Kartheek Reddy Syamala
- Department of Industrial and Systems Engineering, Northern Illinois University, DeKalb IL, USA
| | - In-Sop Kim
- School of Allied Health and Communicative Disorders, Northern Illinois University, DeKalb, IL, USA
| | - Jaejin Hwang
- Department of Industrial and Systems Engineering, Northern Illinois University, DeKalb IL, USA
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18
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Castellucci HI, Arezes PM, Molenbroek JFM, de Bruin R, Viviani C. The influence of school furniture on students' performance and physical responses: results of a systematic review. Ergonomics 2017; 60:93-110. [PMID: 27015656 DOI: 10.1080/00140139.2016.1170889] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The purpose of this study was to determine, using a systematic review, whether the design and/or dimensions of school furniture affect the students' physical responses and/or their performance. Of the review studies, 64% presented positive results, i.e. proven effects; 24% presented negative effects or no change/effect; and the remaining 12% showed an unclear effect. The compatibility between school furniture dimensions and students' anthropometric characteristics was identified as a key factor for improving some students' physical responses. Design characteristics such as high furniture, sit-stand furniture, and tilt tables and seats also present positive effects. Finally, we concluded that further research should be conducted exploring various aspects of those variables, particularly focusing on more objective measures complemented by controlled and prospective design. Practitioner Summary: A systematic review of the literature presents a clearly positive effect of school furniture dimensions on students' performance and physical responses. Similar results appeared when school furniture design was tested. However, studying the effects of design and dimensions together produced an unclear positive effect.
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Affiliation(s)
- H I Castellucci
- a Centro de Estudio del Trabajo, Escuela de Kinesiología, Facultad de Medicina , Universidad de Valparaíso , Valparaíso , Chile
| | - P M Arezes
- b Research Center for Industrial and Technology Management, School of Engineering , University of Minho , Guimarães , Portugal
| | - J F M Molenbroek
- c Faculty of Industrial Design Engineering Section Applied Ergonomics and Design , Delft University of Technology , Delft , The Netherlands
| | - R de Bruin
- d Erin, Human Factors and Ergonomics Consultancy , Nijmegen , The Netherlands
| | - C Viviani
- e Facultad de Ciencias, Escuela de Kinesiología , Pontificia Universidad Católica de Valparaíso , Valparaíso , Chile
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19
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Abstract
OBJECTIVE We assessed the perceived spaciousness and preference for a destination space in relation to six attributes (size, lighting, window size, texture, wall mural, and amount of furniture) of it and of the space experienced before it. BACKGROUND Studies have examined effects of these attributes but not for dynamic experience or preference. METHOD We created 24 virtual reality walks between each possible pair of two levels of each attribute. For each destination space, 31 students (13 men, 18 women) rated spaciousness and 30 students (16 men, 14 women) rated preference. We conducted separate 2 × 2 repeated-measure ANOVAs across each condition for perceived spaciousness and preference. RESULTS Participants judged the space that was larger, was more brightly lit, with a larger window, or with less furniture as the more spacious. These attributes also increased preference. Consonant with adaptation-level theory, participants judged offices as higher in spaciousness and preference if preceded by a space that was smaller, was more dimly lit, or had smaller windows. CONCLUSION The findings suggest that perceived spaciousness varies with size, lightness, window size, and amount of furniture but that perception also depends on the size, lightness, and size of the space experienced before. APPLICATION Designers could use the findings to manipulate features to make a space appear larger or more desirable.
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Abstract
OBJECTIVE To provide a review of sustainable sizing practices that reduce waste, increase sales, and simultaneously produce safer, better fitting, accommodating products. BACKGROUND Sustainable sizing involves a set of methods good for both the environment (sustainable environment) and business (sustainable business). Sustainable sizing methods reduce (1) materials used, (2) the number of sizes or adjustments, and (3) the amount of product unsold or marked down for sale. This reduces waste and cost. The methods can also increase sales by fitting more people in the target market and produce happier, loyal customers with better fitting products. This is a mini-review of methods that result in more sustainable sizing practices. It also reviews and contrasts current statistical and modeling practices that lead to poor fit and sizing. Fit-mapping and the use of cases are two excellent methods suited for creating sustainable sizing, when real people (vs. virtual people) are used. These methods are described and reviewed. Evidence presented supports the view that virtual fitting with simulated people and products is not yet effective. CONCLUSIONS Fit-mapping and cases with real people and actual products result in good design and products that are fit for person, fit for purpose, with good accommodation and comfortable, optimized sizing. While virtual models have been shown to be ineffective for predicting or representing fit, there is an opportunity to improve them by adding fit-mapping data to the models. This will require saving fit data, product data, anthropometry, and demographics in a standardized manner. For this success to extend to the wider design community, the development of a standardized method of data collection for fit-mapping with a globally shared fit-map database is needed. It will enable the world community to build knowledge of fit and accommodation and generate effective virtual fitting for the future. APPLICATION A standardized method of data collection that tests products' fit methodically and quantitatively will increase our predictive power to determine fit and accommodation, thereby facilitating improved, effective design. These methods apply to all products people wear, use, or occupy.
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Zhong J. [Serial Cases of Troubleshooting of NeuViz CT]. Zhongguo Yi Liao Qi Xie Za Zhi 2016; 40:386-387. [PMID: 29806445 DOI: 10.3969/j.issn.1671-7104.2016.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The article describes the specific examples of fault maintenance of the Neusoft NeuViz series CT, so as to provide some maintenance references for colleagues.
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Affiliation(s)
- Jiansheng Zhong
- Department of Equipment, the People's Hospital of Rugao, Rugao, 226500
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Abstract
Over the years, the conventional anaesthesia machine has evolved into an advanced carestation. The new machines use advanced electronics, software and technology to offer extensive capabilities for ventilation, monitoring, inhaled agent delivery, low-flow anaesthesia and closed-loop anaesthesia. They offer integrated monitoring and recording facilities and seamless integration with anaesthesia information systems. It is possible to deliver tidal volumes accurately and eliminate several hazards associated with the low pressure system and oxygen flush. Appropriate use can result in enhanced safety and ergonomy of anaesthetic delivery and monitoring. However, these workstations have brought in a new set of limitations and potential drawbacks. There are differences in technology and operational principles amongst the new workstations. Understand the principles of operation of these workstations and have a thorough knowledge of the operating manual of the individual machines.
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Affiliation(s)
- Vijaya P Patil
- Department of Anaesthesia, Critical Care and Pain, Tata Memorial Hospital, Parel, Mumbai, Maharashtra, India
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Abstract
Musculoskeletal disorders have been described in a number of professions over the years. They are defined as injuries that are caused by or aggravated by workplace activities, and they account for up to 60% of all workplace illnesses. They are known by different names, such as musculoskeletal disorder, repetitive strain injury, cumulative trauma disorder, and repetitive motion injury. Musculoskeletal disorders have only been identified in sonographers since 1997 but are increasing in incidence. Surveys done among American and Canadian sonographers in 1997 showed an 84% incidence; however, this incidence had increased to 90% by 2008. Understanding the importance of optimal body mechanics and how to maintain neutral postures will enable sonographers to reduce the risk factors associated with their profession. Even with the most advanced equipment, an ergonomic workstation is only as effective as the person using it.
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Affiliation(s)
- Joan P Baker
- Bellevue Community College, Kirkland, WA 98034 USA.
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Abstract
The promise of digital mammography has focused considerable resources on the challenges of mammography workstations, but the risk of wasted time and resources in such efforts is very high. Although final testing of the workstation's image quality and ergonomics is common, a number of interim evaluation and refinement techniques can be applied throughout the design and development process. The use of such techniques holds potential not only to save time and money but also to produce a superior workstation.
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Affiliation(s)
- D V Beard
- Department of Computer Information Systems, Idaho State University, Pocatello 83209-8020, USA
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Siegel EL, Reiner BI. Recommendations for image prefetch or film digitization strategy based on an analysis of an historic radiology image database. J Digit Imaging 1998; 11:94-9. [PMID: 9608932 PMCID: PMC3452997 DOI: 10.1007/bf03168731] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Picture archiving and communications systems (PACS) utilize short- and long-term storage to provide both rapid retrieval and large storage capacity. Owing to the practical limitations imposed on the size of the much faster short-term storage, it is important to use an effective algorithm in the retrieval of comparison images from long to short-term storage. A strategy must be used to maximize the likelihood that the relevant historic images have been previously retrieved into short-term memory. Data were collected with a database consisting of 754 consecutive examinations and 7,723 associated historic studies. The most frequent number of previous examinations was zero (11% of patients). In 45% of cases, no previous matching examinations had been performed. Two basic strategies of image retrieval were evaluated. The first algorithm retrieved the last n studies in chronological order. The second strategy tested was retrieval based on a defined interval of time. This strategy was found to be less efficient. By using the former strategy, a 91% success rate (defined as successful retrieval of the previous matching exam) was achieved with retrieval of only 30% of the prior exams. The second approach required retrieval of 70% of the prior exams to achieve a 90% success rate for the previous matching exam. However, the data from this latter strategy suggest that examinations are often ordered in clusters. Thus, there was found to be a 72% likelihood that a previous matching exam, if present, would available on a PACS after only 1 week of operation, and an 80% chance after only 1 month of operation. The data therefore suggest that digitization of film in a new PACS environment might not be necessary owing to the relatively short period of time required to populate the database with historical studies.
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Affiliation(s)
- E L Siegel
- Department of Diagnostic Radiology, University of Maryland School of Medicine, Baltimore, USA
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Abstract
Diagnostic workstation design has migrated towards display presentation in one of two modes: tiled images or stacked images. It is our impression that the workstation setup or configuration in each of these two modes is rather distinct. We sought to establish a commonality to simplify software design, and to enable a single descriptor method to facilitate folder manager development of "hanging" protocols. All current workstation designs use a combination of "off-screen" and "on-screen" memory whether or not they use a dedicated display subsystem, or merely a video board. Most diagnostic workstations also have two or more monitors. Our central concept is that of a "logical" viewport that can be smaller than, the same size as, or larger than a single monitor. Each port "views" an image data sequence loaded into offscreen memory. Each viewport can display one or more images in sequence in a one-on-one or traditionally tiled presentation. Viewports can be assigned to the available monitor "real estate" in any manner that fits. For example, a single sequence computed tomography (CT) study could be displayed across all monitors in a tiled appearance by assigning a single large viewport to the monitors. At the other extreme, a multisequence magnetic resonance (MR) study could be compared with a similar previous study by assigning four viewports to each monitor, single image display per viewport, and assigning four of the sequences of the current study to the left monitor viewports, and four of the earlier study to the right monitor viewports. Ergonomic controls activate scrolling through the off-screen image sequence data. Workstation folder manager hanging protocols could then specify viewports, number of images per viewport, and the automatic assignment of appropriately named sequences of current and previous studies to the viewports on a radiologist-specific basis. Furthermore, software development is simplified by common base objects and methods of the tile and stack modes. Prototype workstation display software and folder manager protocol implementation will be described and demonstrated.
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Affiliation(s)
- S Ghosh
- Department of Radiology, University of California at San Francisco, USA
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