Jemma L Coleman, Jodie A McClelland, Kane J Middleton
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引用次数: 0
Abstract
Current testing of small-arms weapons focuses on measuring accuracy in optimal, supported positions whereas using a more dynamic test may be more informative. Previous work has shown that accuracy, shot interval, and weapon stability degrades over prolonged shooting and only the latter two measures differ between weapon configurations. The aim of the current study was to evaluate muscle activity to understand if signs of fatigue could add information about the optimal ergonomic weapon. The 200 ms of electromyography from six upper limb muscles immediately before each of 60 shots for four weapon conditions were collected from 18 participants. Both frequency and amplitude showed signs of muscle fatigue over the 60 shots for most of the muscles, and amplitude was different in some muscles between conditions. This study shows that although participants can maintain accuracy with more difficult weapon configurations, this comes at the potential cost of muscle fatigue.
期刊介绍:
Ergonomics, also known as human factors, is the scientific discipline that seeks to understand and improve human interactions with products, equipment, environments and systems. Drawing upon human biology, psychology, engineering and design, Ergonomics aims to develop and apply knowledge and techniques to optimise system performance, whilst protecting the health, safety and well-being of individuals involved. The attention of ergonomics extends across work, leisure and other aspects of our daily lives.
The journal Ergonomics is an international refereed publication, with a 60 year tradition of disseminating high quality research. Original submissions, both theoretical and applied, are invited from across the subject, including physical, cognitive, organisational and environmental ergonomics. Papers reporting the findings of research from cognate disciplines are also welcome, where these contribute to understanding equipment, tasks, jobs, systems and environments and the corresponding needs, abilities and limitations of people.
All published research articles in this journal have undergone rigorous peer review, based on initial editor screening and anonymous refereeing by independent expert referees.