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Electromyographical Assessments Of Recommended Neck And Trunk Positions For Dental Hygienists, Margaret F. Lemaster, Kyle J. Kelleran, Maryam Moeini, Daniel M. Russell
Electromyographical Assessments Of Recommended Neck And Trunk Positions For Dental Hygienists, Margaret F. Lemaster, Kyle J. Kelleran, Maryam Moeini, Daniel M. Russell
Rehabilitation Sciences Faculty Publications
Purpose: Dental professionals are recommended to limit neck and trunk flexion to within 20° of a neutral (0°) body posture, however empirical support for the recommendations is lacking. The purpose of this study was to determine whether there are differences in muscle workload between a range of neck and trunk postures in a population of dental hygiene students.
Methods: Fifteen first semester senior dental hygiene students with no history of neck and trunk injury volunteered to participate. Surface electromyography was used to record muscle activity from two neck extensors muscles, cervical erector spinae (CES) and upper trapezius (UT), and two …