Keyboard use and musculoskeletal outcomes among computer users

Gerr, Fredric; Monteilh, Carolyn; Marcus, Michele

doi:10.1007/s10926-006-9037-0

Cited by 157 publications

(112 citation statements)

References 48 publications

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“…MSDs were responsible for 34% of all workplace injuries and illnesses in the year 2012 and reportedly cost between $45 to $54 billion to U.S economy [3,4]. Upper body pains such as neck and shoulder pains are the most typical issues among MSD patients as a result of static posture, working technique and constant static muscle activity [1,[5][6][7][8][9]18]. These problems might be worse for mobile computing product such as tablet and smart phone users because of the inseparable screen and keyboard.…”

Section: Introductionmentioning

confidence: 99%

The effect of psychosocial stress on muscle activity during computer work: Comparative study between desktop computer and mobile computing products

Taib

Bahn

Yun

2016

WOR

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Abstract. BACKGROUND:The popularity of mobile computing products is well known. Thus, it is crucial to evaluate their contribution to musculoskeletal disorders during computer usage under both comfortable and stressful environments. OBJECTIVE: This study explores the effect of different computer products' usages with different tasks used to induce psychosocial stress on muscle activity. METHODS: Fourteen male subjects performed computer tasks: sixteen combinations of four different computer products with four different tasks used to induce stress. Electromyography for four muscles on the forearm, shoulder and neck regions and task performances were recorded. RESULTS: The increment of trapezius muscle activity was dependent on the task used to induce the stress where a higher level of stress made a greater increment. However, this relationship was not found in the other three muscles. Besides that, compared to desktop and laptop use, the lowest activity for all muscles was obtained during the use of a tablet or smart phone. The best net performance was obtained in a comfortable environment. However, during stressful conditions, the best performance can be obtained using the device that a user is most comfortable with or has the most experience with. CONCLUSIONS: Different computer products and different levels of stress play a big role in muscle activity during computer work. Both of these factors must be taken into account in order to reduce the occurrence of musculoskeletal disorders or problems.

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Section: Introductionmentioning

confidence: 99%

The effect of psychosocial stress on muscle activity during computer work: Comparative study between desktop computer and mobile computing products

Taib

Bahn

Yun

2016

WOR

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“…Despite the fact that similar estimates for the European Union (EU) countries are not available, several crosssectional studies performed in Europe have reported a prevalence of 30-62% of musculoskeletal symptoms in the neck or shoulder region studies, and suggest that referred complaints would increase with age and working age, being more prevalent among women than men [4,[6][7][8][9][10][11][12]. However, as this same difference has been identified in the general working population, its causative association may be doubtful [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Work with visual display units and musculoskeletal disorders: A cross-sectional study

Riccò

Cattani

Gualerzi

et al. 2016

Med Pr

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Background: Epidemiological studies have shown that employees working with visual display units (VDU) are more likely to complain about musculoskeletal disorders (MSDs). The aim of this study has been to evaluate associations among MSDs and individuals and work-related factors. Material and Methods: A total of 1032 VDU workers were assessed about their personal (i.e., age, working history, smoking history, physical activity) and work-related factors (i.e., predominant job tasks performed, work posture). Work environment was evaluated regarding fulfillment of the standard ISO 9241-5:1998. The investigation required a direct observation of participants (in order to accurately assess the prevalence of MSDs) and workstations. Adjusted odds ratios (OR a ) were calculated by means of the logistic regression model. Results: Prevalence of MSDs was relatively high (53%). In general, MSDs were significantly associated with female sex (OR = 2.832, 95% confidence interval (CI): 2.178-3.683), age ≥ 50 years old (OR = 2.231, 95% CI: 1.236-4.026), longer exposure to VDU, both as working history (10-14 years: OR = 1.934, 95% CI: 1.301-2.875; ≥ 15 years: OR = 2.223, 95% CI: 1.510-3.271) and working time (30-39 h/week: OR = 1.537, 95% CI: 1.087-2.273). Inappropriate workstation design was confirmed by the multivariate analysis as a risk factor for MSDs (OR a = 2.375, 95% CI: 1.124-5.018). Conclusions: Musculoskeletal disorders were significantly associated with individual factors as well as characteristics of work environment. An appropriate design of workstations may significantly reduce their prevalence amongst VDU workers. Med Pr 2016;67(6):707-719

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“…Musculoskeletal symptoms are widespread among computer users with a high incidence of symptoms, especially in the neck-shoulder region, and the costs and impact on quality of life due to these symptoms are considerable (1)(2)(3)(4). Occupational computer use has become increasingly common over the past few decades, in particular among office workers; and the widespread use of computers today, together with the high incidence of symptoms, demonstrates a potential for the prevention or alleviation of symptoms among, for example, office workers, through the use of targeted interventions.…”

mentioning

confidence: 99%

One-year randomized controlled trial with different physical-activity programs to reduce musculoskeletal symptoms in the neck and shoulders among office workers

Blangsted

Søgaard²,

Hansen³

et al. 2008

Scand J Work Environ Health

209

234

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Keyboard use and musculoskeletal outcomes among computer users

Cited by 157 publications

References 48 publications

The effect of psychosocial stress on muscle activity during computer work: Comparative study between desktop computer and mobile computing products

The effect of psychosocial stress on muscle activity during computer work: Comparative study between desktop computer and mobile computing products

Work with visual display units and musculoskeletal disorders: A cross-sectional study

One-year randomized controlled trial with different physical-activity programs to reduce musculoskeletal symptoms in the neck and shoulders among office workers

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