Shoulder muscular activity in individuals with low back pain and spinal cord injury during seated manual load transfer tasks
Practitioner Summary: This study aimed to compare the activation of four shoulder muscles in individuals with low back pain, spinal cord injuries and healthy condition. EMG analysis showed that the injured groups required more upper trapezius and anterior deltoid activation during load transfer tasks, which may predispose them to muscle overexertion.
Keywords: EMG: electromyography; LBP: low back pain; LSD: least significant difference; MVC: maximal voluntary contraction; RMS: root mean square; SCI: spinal cord injury; SD: standard deviation; Shoulder; iEMG: integrated electromyography; load transferring tasks; low back pain; spinal cord injuries; workplace design
Document Type: Research Article
Affiliations: 1: Digital Industrial Ergonomics and Shoulder Evaluation Laboratory (DIESEL), Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Waterloo, Canada 2: Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI, USA
Publication date: August 3, 2018