Analysis and quantitative myoelectric measurements of loads on the lumbar spine when holding weights in standing postures

• Published in: Spine (Philadelphia, Pa. 1976) Vol. 7; no. 4; p. 390
• Main Authors: Schultz, A, Andersson, G B, Ortengren, R, Björk, R, Nordin, M
• Format: Journal Article
• Language: English
• Published: United States 01.07.1982
• Subjects: Adult; Biomechanical Phenomena; Electromyography; Electrophysiology; Humans; Lumbar Vertebrae - physiology; Male; Muscle Contraction; Physical Exertion; Posture; Pressure

Ten subjects executed a number of weight-holding and force-resisting work tasks while standing either upright or with their trunks in 30 degrees of forward flexion. All tasks involved sagitally symmetric body configurations and were performed isometrically. A simple calculation scheme was devised to...