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Full-Text Articles in Engineering
Changes In Lumbo-Pelvic Coordination Of Individuals With And Without Low Back Pain When Wearing A Hip Orthosis, Matthew T. Ballard, Colin Drury, Babak Bazrgari
Changes In Lumbo-Pelvic Coordination Of Individuals With And Without Low Back Pain When Wearing A Hip Orthosis, Matthew T. Ballard, Colin Drury, Babak Bazrgari
Biomedical Engineering Faculty Publications
Individuals with low back pain demonstrate an abnormal lumbo-pelvic coordination compared to back-healthy individuals. This abnormal coordination presents itself as a reduction in lumbar contributions and an increase in pelvic rotations during a trunk forward bending and backward return task. This study investigated the ability of a hip orthosis in correcting such an abnormal lumbo-pelvic coordination by restricting pelvic rotation and, hence increasing lumbar contributions. The effects of the hip orthosis on the lumbo-pelvic coordination were investigated in 20 low back pain patients and 20 asymptomatic controls. The orthosis reduced pelvic rotation by 12.7° and increased lumbar contributions by 11%. …
Walking Speed Differentially Alters Spinal Loads In Persons With Traumatic Lower Limb Amputation, Brad D. Hendershot, Iman Shojaei, Julian C. Acasio, Christopher L. Dearth, Babak Bazrgari
Walking Speed Differentially Alters Spinal Loads In Persons With Traumatic Lower Limb Amputation, Brad D. Hendershot, Iman Shojaei, Julian C. Acasio, Christopher L. Dearth, Babak Bazrgari
Biomedical Engineering Faculty Publications
Persons with lower limb amputation (LLA) perceive altered motions of the trunk/pelvis during activities of daily living as contributing factors for low back pain. When walking (at a singular speed), larger trunk motions among persons with vs. without LLA are associated with larger spinal loads; however, modulating walking speed is necessary in daily life and thus understanding the influences of walking speed on spinal loads in persons with LLA is of particular interest here. Three-dimensional trunk-pelvic kinematics, collected during level-ground walking at self-selected (SSW) and two controlled speeds (~1.0 and ~1.4 m/s), were obtained for seventy-eight participants: 26 with transfemoral …
Application Of Advanced Biomechanical Methods In Studying Low Back Pain – Recent Development In Estimation Of Lower Back Loads And Large-Array Surface Electromyography And Findings, Babak Bazrgari, Ting Xia
Application Of Advanced Biomechanical Methods In Studying Low Back Pain – Recent Development In Estimation Of Lower Back Loads And Large-Array Surface Electromyography And Findings, Babak Bazrgari, Ting Xia
Biomedical Engineering Faculty Publications
Low back pain (LBP) is a major public health problem and the leading disabling musculoskeletal disorder globally. A number of biomechanical methods using kinematic, kinetic and/or neuromuscular approaches have been used to study LBP. In this narrative review, we report recent developments in two biomechanical methods: estimation of lower back loads and large-array surface electromyography (LA-SEMG) and the findings associated with LBP. The ability to estimate lower back loads is very important for the prevention and the management of work-related low back injuries based on the mechanical loading model as one category of LBP classification. The methods used for estimation …