Investigation of muscle activation during active seating (Killian Wagner Biomech. Lab/RCBE, OTH Regensburg, Germany, 12. May, 2016) Presentation (5MB), Playback (151MB), YouTube. In this work, experimental input-data is used to examine spine-muscle activation during performing defined movements on a dynamic office chair.
Modeling of population ergonomics with AnyBody (Prof. John Rasmussen, Aalborg University, 25. June, 2015) Presentation (4Mb), Playback (73Mb), YouTube. This webcast presents a new modeling method in AnyBody that allow for investigation of the ergonomics of a population in conjunction with a product or adjustable environment. It shows how thousands of body models can be generated within the variability of a population evaluated for kinematics-based comfort.
Musculoskeletal Simulation in an Automotive Environment (Senior Consultant Amir Al-Munajjed, PhD, AnyBody Technology, 23. October, 2014) Presentation (4Mb), Playback (61Mb), YouTube In this webcast Amir Al-Munajjed, senior consultant at AnyBody Technology, will give an overview of how musculoskeletal models can be used to answer ergonomic questions during package design, seat development or similar automotive developments.
Seated Human Model Validation (Christian Gammelgaard Olesen, 19. May, 2009) Presentation (2.6Mb), Playback (23Mb), Get WebEx Player, YouTube The seated model available in the AnyBody repository calculates reaction forces between the human body and the chair. The model can be used for various applications, e.g. design of wheelchairs, office chairs, and automotive chairs. To be sure that a model give the right output, it has to be validated. In order to validate the seated AnyBody model an instrumented chair was built and experiments were carried out. The experiments included different seated postures, varying seat and backrest angle, and foot and backrest height. The experimental postures were modeled and the results were compared.
Pressure ulcer research from seated posture to buttock tissue strain (Christian Gammelgaard Olesen, 1. December, 2010) Presentation (4.0Mb), Playback (10Mb), Get WebEx Player, YouTube Pressure ulcers are a frequent complication to spinal cord injury (SCI) patients. It is well acknowledged that sustained mechanical loading of the soft tissues causes pressure ulcers. When sitting on a chair, support forces are acting between the buttocks and the chair. Posture changes cause changes in these forces and thereby to the loads transferred through the soft tissue and into the bony prominences. The soft tissue is strained by the loading, which causes ulceration and, when the load is sustained, a pressure ulcer. This webcast will demonstrate how an AnyBody model can predict the influence of posture on the support forces and consequently contribute to prevention of pressure ulcers.
Rasmussen, J., Andersen, M.S., Al-Munajjed, A.A. & Upmann, A. (2014), "H-point simulation in musculoskeletal models of seating", 3rd International Digital Human Modeling Symposium (DHM2014), May 20-22, 2014, Tokyo, Japan. [WWW]
binti Abdul Majid, N.A., Abdullah, M.F.E., Jamaludin, M.S., Notomi, M. & Rasmussen, J. (2013), "Musculoskeletal analysis of driving fatigue: The influence of seat adjustments", Advanced Engineering Forum, vol. 10, pp. 373-378. [PDF]
hai Gao, Z., Fan, D., Wang, D., Zhao, H., Zhao, K. & Chen, C. (2014), "Muscle activity and co-contraction of musculoskeletal model during steering maneuver", Bio-Medical Materials and Engineering, vol. 24, pp. 2697–2706. [DOI]
Rasmussen, J., Bichler, R., S., T., T., R., Wirix-Speetjens, R. & Dendorfer, S. (2011), "Subject-specific Musculoskeletal Simulation of Hip Dislocation Risk in Activities of Daily Living", Proceedings of the 2011 ORS Annual Meeting, vol. Long Beach, CA. [PDF]
Kim, S.H. & Lee, K. (2009), "Development of discomfort evaluation method for car ingress motion", International Journal of Automotive Technology, vol. 10 (5), pp. 619-627. [DOI]
Siebertz, K. & Rausch, J. (2008), "The AnyBody Car Driver Model, a CAE tool to evaluate comfort", Conference article from FISITA. [WWW]