Comparison of two articular biomechanical models in the assessment of lumbar loading Abstract The risk of occupational back injuries still remains high. These injuries have serious consequences on workers (with manual handlers being the most affected), and constitute an economic burden for companies and society in general. To assess precisely the risks from a preventive standpoint, articular biomechanical models are available that are capable of estimating tissue loading; however, they yield variable results. This study is part of the manual-handling program, and involves the comparison of two of these models, and then improving their validity and applicability. One model will be used in another study comparing the injury risks in expert and novice manual handlers. This project’s results will allow a better quantification of the intensity of tissue loading so that these risks can be reduced. Produced Under this Project Scientific Reports Comparison of two articular biomechanical models in the assessment of lumbar loading Research Report: R-620 Scientific Publications Comparison of trunk muscle forces and spinal loads estimated by two biomechanical modelsArjmand A., Gagnon D., Plamondon A., Shirazi-Adl A., Christian LarivièreSource : Clinical Biomechanics, vol. 24, no 7, 2009, p. 533-541A comparative study of two trunk biomechanical models under symmetric and asymmetric loadingsArjmand N., Gagnon D., Plamondon A., Shirazi-Adl A., Christian LarivièreSource : Journal of Biomechanics, vol. 43, no 3, 2010, p. 485-491Fear of pain influences abdominal temporal activation patterns during trunk flexion-extension in individuals with chronic low back painButler H. L., Sullivan M. J. L., Christian LarivièreSource : in Journée scientifique 2009 du Réseau provincial de recherche en adaptation/réadaptation / REPAR (7 mai, 2009 : Québec, Canada), 2009, p. 6Fear of pain modulates the recruitment patterns between abdominal muscles in LBP patients (poster)Butler H. L., Sullivan M. J. L., Christian LarivièreSource : in McGill University Pain Research Day, (13th : January 22, 2009 : Montreal, Canada), 2009Predictive equations to estimate spinal loads in symmetric lifting tasksArjmand N., Plamondon A., Shirazi-Adl A., Parnianpour M., Christian LarivièreSource : Journal of Biomechanics, vol. 44, no 1, 2011, p. 84-91Two trunk biomechanical models estimate quite different muscle forces and spine loads (Poster)Arjmand N., Gagnon D., Plamondon A., Shirazi-Adl A., Christian LarivièreSource : in Annual Meeting of Orthopaedic Research Society (56th : March 6-9, 2010 : New Orleans, USA), 2010, #1485A comparison between single- and multi-joint emg-assisted by optimization lumbar spine modelsGagnon D., Arjmand N., Plamondon A., Shirazi-Adl A., Christian LarivièreSource : in Congress of the International Society of Electrophysiology & Kinesiology / ISEK (18th : June 16-19, 2010 :Aalborg, Denmark), 2010Comparison of two trunk biomechanical models in lifting: evaluation of assumptions and estimationsArjmand N., Gagnon D., Plamondon A., Shirazi-Adl A., Christian LarivièreSource : in Computer Methods in Biomechanics and Biomedical Engineering / CMBBE (October 9-11, 2010 : Stuttgart, Germany), 2010An improved multi-joint EMG-assisted optimization approach to estimate joint and muscle forces in a musculoskeletal model of the lumbar spineGagnon D., Arjmand N., Plamondon A., Shirazi-Adl A., Christian LarivièreSource : Journal of Biomechanics, vol. 44, no 8, 2011, p. 1521-1529Predictive equations for lumbar spine loads in load-dependent asymmetric one- and two-handed lifting activitiesArjmand N., Plamondon A., Shirazi-Adl A., Parnianpour A., Christian LarivièreSource : Clinical Biomechanics, vol. 27, no 6, 2012, p. 537-544 Additional Information Type: Project Number: 0099-6680 Status: Completed Year of completion: 2009 Research Field: OSH and Sustainable Prevention Work Environment Team: André Plamondon (IRSST)Aboulfazl Shirazi-Adl (Polytechnique Montréal)Denis Gagnon (Université de Sherbrooke)