Comparison of biomechanical loading during use of conventional stud welding equipment and an alternate system.
作者： Nathan B. Fethke , Lauren C. Gant , Fred Gerr
DOI: 10.1016/J.APERGO.2010.11.007
关键词: Orthodontics 、 Mathematics 、 Trunk flexion 、 Stud welding 、 Electromyography 、 Surgery 、 Inclination angle 、 Trunk 、 Muscle activity 、 Welding 、 Biomechanics
摘要: We investigated the effect of an alternative welding system designed to reduce exposure extreme trunk flexion on measures inclination and muscle activity. Among 10 participants, data were collected while using conventional stud equipment alternate system. Paired t-tests used compare results between two systems. Mean angle was reduced with (34.4° versus 9.7°, p < 0.01). Percent time angles greater than 60° also (40.0% 4.7%, In general, resulted in less desirable upper trapezius activity levels. The appears be effective reducing among welders. Continued development should explore features shoulder forces improve productivity.
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