Modified electromyography-assisted optimization approach for predicting lumbar spine loading while walking with backpack loads.

07:00 EST 13th February 2020 | BioPortfolio

Summary of "Modified electromyography-assisted optimization approach for predicting lumbar spine loading while walking with backpack loads."

This study modified an electromyography-assisted optimization approach for predicting lumbar spine loading while walking with backpack loads. The modified-electromyography-assisted optimization approach eliminated the electromyography measurement at maximal voluntary contraction and adopted a linear electromyography-force relationship. Moreover, an optimal lower boundary condition for muscle gain was introduced to constrain the trunk muscle co-activation. Anthropometric information of 10 healthy young men as well as their kinematic, kinetic, and electromyography data obtained while walking with backpack loads were used as inputs in this study. A computational algorithm was used to find and analyse the sensitivity of the optimal lower boundary condition for achieving minimum deviation of the modified-electromyography-assisted optimization approach from the electromyography-assisted optimization approach for predicting lumbosacral joint compression force. Results validated that the modified-electromyography-assisted optimization approach (at optimal lower boundary condition of 0.92) predicted on average, a non-significant deviation in peak lumbosacral joint compression force of -18 N, a standard error of 9 N, and a root mean square difference in force profile of 73.8 N. The modified-electromyography-assisted optimization approach simplified the experimental process by eliminating the electromyography measurement at maximal voluntary contraction and provided comparable estimations for lumbosacral joint compression force that is also applicable to patients or individuals having difficulty in performing the maximal voluntary contraction activity.


Journal Details

This article was published in the following journal.

Name: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine
ISSN: 2041-3033
Pages: 954411920906243


DeepDyve research library

PubMed Articles [16489 Associated PubMed Articles listed on BioPortfolio]

Transforaminal Endoscopic Lumbar Discectomy and Foraminotomy with Modified Radiofrequency Nerve Stimulator and Continuous Electromyography Under General Anesthesia: Technical Note.

Transforaminal endoscopic lumbar approaches involve working in Kambin's triangle. These procedures are performed on awake patients or under general anesthesia with continuous electromyography (EMG). P...

Thoracic-lumbar-sacral spine sagittal alignment and cranio-mandibular morphology in adolescents.

The relationship between thoracic-lumbar-sacral spine sagittal alignment and craniofacial morphology is still controversial. Evidence-based results are difficult to obtain and scientific studies are i...

Discovery of a New Ligament of the Lumbar Spine: The Midline Interlaminar Ligament.

The ligaments of the lumbar spine are integral to structural integrity and have been well-studied. However, during the routine dissection of the lumbar spine, we identified, to our knowledge, a previo...

Multi-segment spine and hip kinematics in asymptomatic individuals during standardized return from forward bending versus functional box lifting.

Clinically, sagittal spinal mobility is objectively assessed by forward bending range of motion (ROM) tests such as the modified-Schober test (m-Schober test). However, evidence comparing ROM during f...

Transforaminal Endoscopic Approach for Lumbar Extraforaminal Synovial Cysts: Technical Note.

Lumbar facet cysts are commonly seen in degenerative lumbar conditions causing stenosis and radiculopathy. Extraforaminal lumbar facet cysts are a rare entity and present a surgical challenge because ...

Clinical Trials [8866 Associated Clinical Trials listed on BioPortfolio]

Physical Activity, Disability and Quality of Life Before and After Lumbar Spine Surgery

To date it is unknown how physical activity levels in adults is limited before and after lumbar spine surgery and if physical activity level is associated with disability and limitations o...

Modified-Thoracolumbar Interfascial Plane Block and Erector Spinae Plane Block Following Lumbar Spinal Surgery

Ultrasound (US)-guided peripheral nerve blocks have been used increasily due to the advantages of ultrasound in anesthesia practice. TLIP block is one of these nerve blocks performed under...

Ileus After Lumbar Spine Surgery

Postoperative ileus (POI) after lumbar spine surgery is not uncommon. However, the incidence, severity and risk factors of ileus after spine surgery remain uncertain because there is not y...

A Prospective, Multicenter Observational Study on MAST™ (Minimal Access Spinal Technologies) Fusion Procedures for the Treatment of the Degenerative Lumbar Spine

The aim of the study is to observe and document surgical practice and evaluate patients' outcomes following a MAST™ single or double level instrumented fusion procedure using PLIF (Poste...

Vitamin C Supplement for Lumbar Spine Surgery

By doing this study, researchers hope to learn effects of Vit C on lumbar spine surgery outcomes.

Medical and Biotech [MESH] Definitions

A technique utilizing a laser coupled to a catheter which is used in the dilatation of occluded blood vessels. This includes laser thermal angioplasty where the laser energy heats up a metal tip, and direct laser angioplasty where the laser energy directly ablates the occlusion. One form of the latter approach uses an EXCIMER LASER which creates microscopically precise cuts without thermal injury. When laser angioplasty is performed in combination with balloon angioplasty it is called laser-assisted balloon angioplasty (ANGIOPLASTY, BALLOON, LASER-ASSISTED).

The replacement of intervertebral discs in the spinal column with artificial devices. The procedure is done in the lumbar or cervical spine to relieve severe pain resulting from INTERVERTEBRAL DISC DEGENERATION.

Therapy assisted by the use of a horse and/or its movement, including equine-assisted psychotherapy, horseback riding, and hippotherapy.

Tapping of the subarachnoid space in the lumbar region, usually between the third and fourth lumbar vertebrae.

The anterior concavity in the curvature of the lumbar and cervical spine as viewed from the side. The term usually refers to abnormally increased curvature (hollow back, saddle back, swayback). It does not include lordosis as normal mating posture in certain animals ( = POSTURE + SEX BEHAVIOR, ANIMAL).

Quick Search

DeepDyve research library

Relevant Topic

Arthritis Fibromyalgia Gout Lupus Rheumatic Rheumatology is the medical specialty concerned with the diagnosis and management of disease involving joints, tendons, muscles, ligaments and associated structures (Oxford Medical Diction...

Searches Linking to this Article