The Effects of Standing Working Posture on Operation Force and Upper Limb Muscle Activation When Using Different Pointing Devices

J Choi, Y Lin, PY Loh - … journal of environmental research and public …, 2022 - mdpi.com
wrist and shoulder movements. Several studies have indicated that the trackball could
decrease activation of the shoulder muscles and angles of wrist … was asked to finish each trial …

Effects of various handle shapes and surface profiles on the hand-arm responses and comfort during short-term exposure to handle vibration

JA Revilla, I Priadythama, PY Loh… - Journal of Occupational …, 2022 - Taylor & Francis
… of vibration, sustained grip exertion, and unnatural posture. The … WTV and forearm muscle
activities during vibration exposure. … features such as softness or hardness and grip materials. …

Effect of work experience and upper-limb muscle activity on grip strength of manual workers

R Jain, KB Rana, ML Meena - International Journal of Occupational …, 2023 - Taylor & Francis
effects of handle displacement, operator response, experience, working posture and joint
hardness … /45 flexed wrist with a fixed orientation of other upper body muscles (elbow 90 and …

Ergonomic design and evaluation of gemstone polishing workstation

D Das, AK Singh - International Journal of Occupational Safety and …, 2023 - Taylor & Francis
… forearm muscle activity and perceived discomfort in the wrist/… influenced the working posture,
muscle activity and perceived … Mohs hardness number = 8), quartz (Mohs hardness number …

The influence of human interaction on the vibration of hand-held human-machine systems–The effect of body posture, feed force, and gripping forces on the vibration …

A Lindenmann, M Uhl, T Gwosch, S Matthiesen - Applied Ergonomics, 2021 - Elsevier
… The hand length describes the distance between the tip of the middle finger to the wrist fold.
… This can be explained by the necessity for higher muscular activity for increased feed forces …

Reliability of trapezius muscle hardness measurement: a comparison between portable muscle hardness meter and ultrasound strain elastography

T Sawada, H Okawara, D Nakashima, S Iwabuchi… - Sensors, 2020 - mdpi.com
… Recent developments in wearable sensors have made it possible to record sedentary
activity time and provide feedback on poor sitting posture in daily life [39,40], and their use may …

Wrist pressure and angulation during keyboarding: Comparison between two common wrist supports

N Short, T Almonroeder, M Baumle, K Benvenuti… - Work, 2022 - content.iospress.com
… tasks, associated muscle fatigue, and improper wrist posture and … the effects of a variety of
work surface hardness on wrist … the wrist pressures between a hard work surface and soft work

[HTML][HTML] Evaluating the effect of perceived mental workload on work body postures

V Nino, D Claudio, SM Monfort - International Journal of Industrial …, 2023 - Elsevier
… to the primary task and attempted to and finish it on time. The … determine the impacts of
mental workload on muscle-specific … muscle activities to identify connections with body postures

A musculoskeletal model of the hand and wrist capable of simulating functional tasks

DC McFarland, BI Binder-Markey… - IEEE transactions on …, 2022 - ieeexplore.ieee.org
… was verified by checking muscle activity data during standard manual muscle testing …
definition of neutral wrist posture; we simulated grip strength in multiple postures to both address …

Effects of different tools and working height on physical workload in vertical cleaning tasks applying ambient control techniques

YP Liu, HC Chen, WH Hong, WC Weng - Applied Ergonomics, 2022 - Elsevier
… to spend a longer time to finish the task while using an LHT than … a handleless rag, and the
effects of working posture, tools, and … Therefore, only the 50th percentile muscle activity was …