Effects of user experience, working posture and joint hardness on powered nutrunner torque reactions

Article Abstract:

The handle displacement, grip force and upper limb muscle activity due to the effects of operator experience are studied with 15 experienced and 15 novice nutrunner users. The results have suggested that by adapting the workplace layout to permit different working postures for each user group is able to minimize the tool handle displacement.

Design and construction, Power tools, Musculoskeletal diseases

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The differential role of mental rumination among industrial and knowledge workers

Article Abstract:

A study investigating the process of recovery from fatigue focusing on the differential characteristics of mental rumination among industrial and knowledge workers is presented. Short-term contract workers showed higher intensity of rumination and considering the type of work, creative workers showed high levels of rumination.

United States, Psychological aspects, Job stress, Knowledge workers, Mental fatigue, Factory workers

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Fatigue during prolonged intermittent overhead work: Reliability of measures and effects of working height

Article Abstract:

A laboratory-based simulation of overhead work was conducted in order to identify the important non-linear effects of overhead work height at three working heights to have improved guidelines. The results show increase in detrimental tiredness and performance effects at extremes in reach at the time of overhead work.

Work environment, Shoulder pain, Working conditions

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