Digital Commons Network^™

Occurrence Of Temporomandibular Disorder In Subjects With Low Back Pain And Spinal Postural Deformities: An Observational Study, Vijay Kage, Aarti Welling, Richa Desai

Internet Journal of Allied Health Sciences and Practice

Purpose: Back pain and temporomandibular disorder (TMD) are two predominant illnesses that affect the human motor system. Literature has stated significant associations between chronic low back pain (CLBP) and TMD. Global postural deviations cause body adaptation and realignment, which may interfere with the function of TMJ. However, the possibility of TMD in subjects with CLBP associated with spinal postural deformities has yet to be completely explored. Method: This was an observational study carried out among 65 people having CLBP with co-presence of any spinal deformities. Forward head posture (FHP) was assessed using the On-Protractor application and thoracic kyphosis and lumbar …

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 …

The Effect Of Magnification Loupes On Posture During Instrumentation By Dental Hygienists, Emily Anne Ludwig

Dental Hygiene Theses & Dissertations

Purpose: The purpose of this study was to determine the effects of dental magnification loupes on posture during instrumentation. Methods: A convenience sample of twenty-seven righthanded dental hygienists with no history of injuries or disabilities of the head, neck, and trunk regions was enrolled. Baseline posture calibration was taken. Accelerometers were placed on four locations of the head and trunk (occipital pole of head, cervical vertebrae: C5, thoracic vertebrae: T5, lumbar vertebrae: L1) to measure changes in posture. Accelerations in three axes were recorded (anterior/posterior (AP), medial/lateral (ML), vertical (VT)). Mean accelerations of the three axes were used to compute …

Injury Prevention With Physical Therapy, Karen Kott, Margaret F. Lemaster

Rehabilitation Sciences Faculty Publications

(First paragraph) Ergonomics is the study of human performance (positioning and movement) and workplace design, such as equipment, ambience, and placement. The purpose of ergonomics is to maximize productivity by increasing safety, improving work quality, reducing operator fatigue and discomfort, and decreasing the risk of work -related musculoskeletal disorders (MSDs).^1-3