Trackball modification based on ergonomic evaluation: a case study in the sociology of ergonomics in Israel

Morag, Ido; Shinar, David; Saat, Keren; Osbar, Anna

doi:10.1016/j.ergon.2005.01.002

Cited by 5 publications

(2 citation statements)

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“…As an example of the value of ergonomics, Intel employees in Israel started to complain of wrist aches, and the problem was rapidly investigated and ergonomically resolved, not only in this factory but in all those belonging to this group worldwide (Morag et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Ergonomics and psycho-sociological quality indexes in greenhouses, Almería (Spain)

Callejón-Ferre¹,

Pérez-Alonso

López

et al. 2009

Span. j. agric. res.

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This study investigates the use of the Labour Economics and Sociology Laboratory of France (LEST) method to analyse work posts among greenhouse workers in the Almería region of south-eastern Spain. The aim is to improve the health of the labourers. Data were gathered from 110 greenhouses, 73 of the Almería parral plano type and 37 raspa and amagado. Crops studied were 63 greenhouses of tomatoes, 31 of watermelons, and 16 of courgette, examining the physical environment, physical load, psycho-social aspects, and time worked by the labourers. The main conclusion was that this type of crop protective structure, typical in south-eastern Spain, does not guarantee a comfortable working environment, as defined by the norm UNE-EN 13031-1 reference. The results also associate the different types of greenhouses and their crops with the ergonomic and psycho-sociological conditions of the workers. Improvements are proposed.Additional key words: ergonomics, greenhouse, LEST, prevention, Psycho-sociology. Resumen Índices de calidad ergonómica-psicosociológica en invernaderos de Almería (España)Este estudio investigó el uso del método de LEST (Labour Economics and Sociology Laboratory of France) para evaluar los puestos de trabajo en invernaderos de la provincia de Almería (España). Todo ello, con el fin de mejorar la salud de los trabajadores. Los datos se han obtenido de 110 invernaderos, 73 del tipo Almería "parral plano" y 37 "raspa y amagado"; según el tipo de cultivo, 63 de tomate, 31 de sandía y 16 de calabacín, afectándose negativamente al entorno físi-co, carga física, aspectos psicosociales y tiempo de trabajo de los trabajadores. Como conclusión principal, este tipo de estructuras de protección de cultivos típicas del sudeste español no garantizan el trabajo de las personas de forma cómoda en su interior, no estando dentro de la definición de la norma UNE-EN 13031-1 de referencia, además los resultados asocian directamente los diferentes tipos de invernaderos y sus cultivos con las condiciones ergonómico-psicosociales de los trabajadores, proponiéndose mejoras para ellos.

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Section: Introductionmentioning

confidence: 99%

Ergonomics and psycho-sociological quality indexes in greenhouses, Almería (Spain)

Callejón-Ferre¹,

Pérez-Alonso

López

et al. 2009

Span. j. agric. res.

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“…Following the ergonomic assessment, its design was modified and the cumulative load on the wrist was released. The improvement was significant enough to be replicated to other manufacturing sites as well (Morag et al, 2005).…”

Section: Long-term Systemsmentioning

confidence: 98%

Intel's incident-free culture: A case study

Morag

2007

Applied Ergonomics

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Development of a usability evaluation method using natural product-use motion

et al. 2017

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Ergonomic analysis of product-use posture and motion plays a key role to improve the usability of a product. Product-use posture and motion influence users' satisfaction as well as task efficiency during physical interactions (Clamann et al., 2012). In general, product-use posture and motion are highly affected by the physical design factors (e.g. length, height, and weight) of a product. Thus, the product design based on the ergonomic relationships between users and a product under consideration may help users have more comfortable and convenient physical interactions with a product (Fostervold et al., 2006;Rempel and Horie, 1994;Rose, 1991;Smith et al., 1998;Qin et al., 2013). For example, Rempel et al. (2007) analyzed wrist and forearm postures while keyboarding at various keyboard angles, and found the optimal split (12°) and gable (14°) angles which could reduce the awkward motions of the wrist and forearm.Most studies analyzing product-use posture and motion focused on the biomechanical load and motion efficiency while users interact with products. Nelson et al. (2000) measured keyboarding motions by an opto-electric finger monitor and analyzed finger/wrist postures and motions based on tendon excursion, angular velocity, and angular acceleration. Moffet et al. (2002) AbstractThe present study developed and tested a new usability evaluation method which considers natural product-use motions. The proposed method measures both natural product-use motions (NMs) and actual product-use motions (AMs) for a product using an optical motion capture system and examines the usability of the product based on motion similarity (MS; %) between NMs and AMs. The proposed method was applied to a usability test of four vacuum cleaners (A, B, C, and D) with 15 participants and their MSs were compared with EMG measurements and subjective discomfort ratings. Cleaners A (44.6%) and C (44.2%) showed higher MSs than cleaners B (42.9%) and D (41.7%); the MSs mostly corresponded to the EMG measurements, which could indicate that AMs deviated from NMs may increase muscular efforts. However, the MSs were slightly different from the corresponding discomfort ratings. The proposed method demonstrated its usefulness in usability testing, but further research is needed with various products to generalize its effectiveness.Keywords: Natural product-use motion; Motion similarity; Usability evaluation rear seat of minivans using an optical motion capture system and developed eight motion strategies for ingress and egress to propose the ergonomic door designs for minivans.A few studies have analyzed natural product-use posture and motion which are determined by user preference and used the natural motion information as a reference to evaluate physical interactions between users and a product. This is because using a product with natural product-use posture and motion could increase the affordance of a product and the user satisfaction of the product (Chang, 2007). In addition, finding natural product-use posture and motion could provide a...

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Trackball modification based on ergonomic evaluation: a case study in the sociology of ergonomics in Israel

Cited by 5 publications

References 5 publications

Ergonomics and psycho-sociological quality indexes in greenhouses, Almería (Spain)

Ergonomics and psycho-sociological quality indexes in greenhouses, Almería (Spain)

Intel's incident-free culture: A case study

Development of a usability evaluation method using natural product-use motion

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