The effects of work surface hardness on mechanical stress, muscle activity, and wrist postures

Kim, Jeong Ho; Aulck, Lovenoor; Trippany, David; Johnson, Peter W.

doi:10.3233/wor-152166

Cited by 8 publications

(2 citation statements)

References 52 publications

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“…In a study on truck drivers it was concluded that self-reported cervical herniated disc, nuchal pain, arm/forearm weakness, arm/forearm numbness, and finger numbness were significantly more prevalent as the driver's duration of exposure increased [24]. The findings of a study [25] on truck drivers in USA demonstrated that there were substantial differences in health risk prediction between the predominant axis exposure (advocated by the European Union Vibration Directives) and vector sum exposures.…”

Section: Literature Reviewmentioning

confidence: 94%

History of Cause – Effect Relationship Between Whole Body Vibrations and Musculoskeletal Disorders in Truck Drivers

2016

Arimpie - 2016

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Abstract-Purpose -The purpose of this paper is to review the available literature related to ergonomical problems (especially musculoskeletal disorders) of truck drivers in order to trace the origin, objectives, trends and scope for future work. Design/methodology/approach -A review of research articles was conducted for various terms, namely, ergonomic, whole body vibration and musculoskeletal disorders in truck drivers. Findings -From the literature review, it has been observed that truck drivers faced different ergonomical problems in their daily life like pain and discomfort in different body regions and most vulnerable part of the body was lower back as most of the researchers had reported the same. The reason of this pain was the long duration of driving, sitting postures and work stressors.

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Section: Literature Reviewmentioning

confidence: 94%

History of Cause – Effect Relationship Between Whole Body Vibrations and Musculoskeletal Disorders in Truck Drivers

2016

Arimpie - 2016

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“…3. Web-browsing task (dependent variable: the number of questions answered): Web-browsing tasks (Kim, Aulck, Trippany, & Johnson, 2015) consisted of standardized web-browsing activities, which required the participants to visit a off-line website on the computer and read the site contents to answer a question by either typing or choosing an answer with the laptop trackpad. The performance was measured by calculating the number of questions answered correctly.…”

Section: Non-driving Task Performancementioning

confidence: 99%

Comparisons of Whole Body Vibration, Muscle Activity and Non-driving Task Performance between Different Seat Suspensions in an Autonomous Passenger Car Application

Kia

Johnson

Kim

2018

Proceedings of the Human Factors and Ergonomics Society Annual

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This study compared whole body vibration (WBV), muscle activity and non-driving task performance between different seat suspension settings in a simulated autonomous passenger car environment. To simulate autonomous vehicle environment, field-measured vibration profiles were recreated on a large-scale 6-degree-of-freedom motion platform. In a repeated-measures laboratory experiment, we measured whole body vibration, muscle activity (neck, shoulder and low back), participants non-driving task performance while participants performed non-driving tasks (pointing task with a laptop trackpad, keyboard typing, web-browsing, and reading) on three different suspension seats mounted on the motion platform: vertical (z-axis) electromagnetic active suspension, multi-axial (lateral (y-axis) and vertical (z-axis)) electromagnetic active suspension, and no suspension (industry standard suspension-less seat for passenger cars). The average weighted vibration [A(8)] and vibration dose value [VDV(8)] showed that the seat measured vibration on both the vertical [A(8) = 0.29 m/s 2 and VDV(8) = 10.70 m/s 1.75 ] and multiaxial suspension seats [A(8) = 0.29 m/s 2 and VDV(8) = 10.22m/s 1.75 ] were lower than nosuspension seat vibration [A(8) = 0.36 m/s 2 and VDV(8) = 12.84 m/s 1.75 ]. Despite the significant differences in WBV between the different suspensions there were no significant differences across three different suspension seats in typing performance (typing speed and accuracy: p's > 0.83), pointing task performance (movement time and accuracy: p's > 0.87), web-browsing (number of questions and webpages read: p = 0.42), and reading (number of words read: p = 0.30). The muscle activity in low back (erector spinae) and shoulder (trapezius) muscles also did not show any significant differences (p's > 0.22). These laboratory study findings indicated that despite the significant reduction in WBV, neither vertical nor multi-axial active suspension seats improve non-driving task performance as compared to the no-suspension seat.

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The effects of target location on musculoskeletal load, task performance, and subjective discomfort during virtual reality interactions

et al. 2020

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The effects of work surface hardness on mechanical stress, muscle activity, and wrist postures

Cited by 8 publications

References 52 publications

History of Cause – Effect Relationship Between Whole Body Vibrations and Musculoskeletal Disorders in Truck Drivers

History of Cause – Effect Relationship Between Whole Body Vibrations and Musculoskeletal Disorders in Truck Drivers

Comparisons of Whole Body Vibration, Muscle Activity and Non-driving Task Performance between Different Seat Suspensions in an Autonomous Passenger Car Application

The effects of target location on musculoskeletal load, task performance, and subjective discomfort during virtual reality interactions

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