TY - CHAP A1 - Penzkofer, Rainer A1 - Grechenig, S. A1 - Kujat, Richard A1 - Angele, Peter A1 - Dendorfer, Sebastian T1 - Biomechanical comparison of the dorsal femur condyles and the iliac crest in terms of failure behavior T2 - XXV Congress of the International Society of Biomechanics, Glasgow, UK, 12th-16th July 2015 Y1 - 2015 ER - TY - CHAP A1 - Striegl, B. A1 - Kujat, Richard A1 - Dendorfer, Sebastian T1 - Quantitative analysis of cartilage surface by confocal laser scanning microscopy T2 - Biomedizinische Technik Y1 - 2014 U6 - https://doi.org/10.1515/bmt-2014-4012 VL - 59 IS - s1-A SP - 24 ER - TY - CHAP A1 - Weber, Tim A1 - Dendorfer, Sebastian A1 - Bulstra, Sjoerd K. A1 - Verkerke, Gijsbertus Jacob A1 - Renkawitz, Tobias T1 - Musculoskeletal modeling for orthopedic surgery – Applications and chances T2 - Orthopedics meets Engineering, Regensburg, 2015 Y1 - 2015 ER - TY - CHAP A1 - Putzer, Michael A1 - Weber, Tim A1 - Dendorfer, Sebastian T1 - Design studies on hip prosthesis using patient specific data T2 - Simpleware Users meeting, November 9th 2011, Bristol, UK Y1 - 2011 ER - TY - CHAP A1 - Dendorfer, Sebastian T1 - Mechanobiology – Impact on regeneration and degradation T2 - Translations in Regenerative Medicine, TIRM and FIFA Symposium, Regensburg, 2015 Y1 - 2015 ER - TY - CHAP A1 - Andersen, Michael Skipper A1 - de Zee, Mark A1 - Dendorfer, Sebastian A1 - MacWilliams, Bruce A1 - Rasmussen, John T1 - Validation of a detailed lower extremity model based on the Klein Horsman data set T2 - Proceedings of the 12th International Symposium on Computer Simulation in Biomechanics (ISB 2009), July 2nd - 4th 2009, Cape Town, South Africa Y1 - 2009 SP - 27 EP - 28 ER - TY - CHAP A1 - Dendorfer, Sebastian A1 - Rasmussen, John A1 - Christensen, Soeren Toerholm A1 - Robie, Bruce T1 - The Effect of Spinal Disc Herniation on Multifidus Muscles T2 - 56th Orthopaedic Research Society Meeting, New Orleans, USA, 2010 Y1 - 2010 UR - https://www.ors.org/Transactions/56/1487.pdf ER - TY - GEN A1 - Suess, Franz A1 - Melzner, Maximilian A1 - Dendorfer, Sebastian T1 - Towards Ergonomic working - machine learning algorithms and musculoskeletal modeling T2 - RIM 2021, 13th International Scientific Conference on Manufacturing Engineering, 29 Sept. - 1 Oct 2021, Sarajevo, Bosnia and Herzegovina Y1 - 2021 ER - TY - CHAP A1 - Hammer, Joachim A1 - Dendorfer, Sebastian T1 - Cyclic loading and microstructure of cancellous bone T2 - Journal of Biomechanics Y1 - 2008 U6 - https://doi.org/10.1016/S0021-9290(08)70409-3 VL - 41 IS - Suppl. 1, July 2008 SP - S410 ER - TY - CHAP A1 - Robie, Bruce A1 - Rasmussen, John A1 - Christensen, Soeren Toerholm A1 - Dendorfer, Sebastian T1 - Herniation Induces 55% Increase in Load of Key Stabilizing Muscle – Impact on Herniation Treatment Devices? T2 - Spine Arthoplasty Society Meeting, New Orleans, 2010 Y1 - 2010 ER - TY - CHAP A1 - Dendorfer, Sebastian T1 - How much iron to pump? The determination of muscle forces for activities of daily living T2 - DGU, Berlin, 2008 Y1 - 2008 ER - TY - CHAP A1 - Dendorfer, Sebastian T1 - Biomechanical evaluation and optimisation of countermeasure exercises T2 - ESA/ESTEC Bedrest Strategy Workshop, Noordwijk, NL, 2009 Y1 - 2009 ER - TY - CHAP A1 - Dendorfer, Sebastian A1 - Carbes, S. A1 - Rasmussen, John T1 - The influence of muscle forces on biomechanical fracture fixation simulations – from in-vivo forces to tissue strains T2 - World Congress on Medical Physics and Biomedical Engineering, 7 - 12, 2009, Munich Y1 - 2009 ER - TY - CHAP A1 - Dendorfer, Sebastian A1 - Rasmussen, John T1 - The influence of in-vivo muscle forces on the stress distribution in a vertebral body during activities of daily living T2 - Eurospine Warsaw, Poland 2009 Y1 - 2009 ER - TY - CHAP A1 - Dendorfer, Sebastian A1 - Englert, Carsten T1 - Forces on a clavicles midshaft fracture and influence of fracture type T2 - AO Symposium, Regensburg, 2009 Y1 - 2009 ER - TY - GEN A1 - Kögler, Michael A1 - Ismail, Khaled M. A1 - Rusavy, Zdenek A1 - Kalis, Vladimir A1 - Süß, Franz A1 - Dendorfer, Sebastian T1 - Influence of bed height and stance on accoucheurs lower back and glenohumeral load during simulated childbirth T2 - 31st meeting of Czech Urogynaecological Society, Prague, 2022 Y1 - 2022 ER - TY - JOUR A1 - Lazarev, I. A. A1 - Riabokon, P. V. A1 - Haller, M. A1 - Dendorfer, Sebastian T1 - Effect of the Displacement of Calcaneal Bone Peripheral Fragment in its Fracture on the Function of the Three-Headed Calf Muscle JF - TRAUMA N2 - In the structure of musculoskeletal injuries, calcaneal fractures account for up to 4 % of all skeletal fractures and up to 60 % of hindfoot fractures. The effect of the displacement of the peripheral fragment of the calcaneus on the calf muscles’s reaction forces at the time of the adoption of the simplified squatting position was investigated by modeling in AnyBody Modeling System 6.0 software. M.gastrocnemius (lateralis et medialis) in the initial phase of motion in all variants of the peripheral fragment displacement did not develop sufficient muscular effort in comparison to the intact calcaneus. M.soleus medialis et lateralis showed significant increase in muscle activity rates in the initial phase of motion (41.87 ± 1.90 H and 52.07 ± 2.10 H) before reaching its maximum values, as compared with those of the intact calcaneus. In the final phase of the movement, upon muscle reaches its maximum length, muscular strength indicators of the m.soleus returned to their original values or were significantly below them. The decline in muscle strength was due to shortening of the moment arm or muscle excursion in case of convergence of muscle attachment points. When the peripheral fragment is displaced, due to putting down the heel to the surface of the support in terms of anatomical muscle lengthening, it takes extra effort to achieve rest length and its maximum power. In all types of the displacement of the peripheral fragment, the function of three-headed calf muscle is disturbed with involvement of additional muscular effort and energy expenditure. This fact should motivate the surgeon on the need for accurate repositioning of bone fragments in calcaneal fractures with the displacement of the peripheral fragment. Y1 - 2016 U6 - https://doi.org/10.22141/1608-1706.2.16.2015.80247 VL - 16 IS - 2 SP - 20 EP - 24 PB - Zaslavsky ER - TY - JOUR A1 - Dendorfer, Sebastian A1 - Maier, Hans Jürgen A1 - Taylor, David A1 - Hammer, Joachim T1 - Anisotropy of the fatigue behaviour of cancellous bone JF - Journal of Biomechanics N2 - The fatigue behaviour of materials is of particular interest for the failure prediction of materials and structures exposed to cyclic loading. For trabecular bone structures only a few sets of lifetime data have been reported in the literature and structural measures are commonly not considered. The influence of load contributions which are not aligned with the main physiological axis remains unclear. Furthermore site and species dependent relationships are not well described. In this study five different groups of trabecular bone, defined in terms of orientation, species and site were exposed to cyclic compression. In total, 108 fatigue tests were analysed. The lifetimes were found to decrease drastically when off-axis loads were applied. Additionally, species and site strongly affect fatigue lifetimes. Strains at failure were also found to be a function of orientation. KW - Ermüdung KW - Knochen KW - Spongiosa KW - Anisotropie Y1 - 2008 U6 - https://doi.org/10.1016/j.jbiomech.2007.09.037 VL - 41 IS - 3 SP - 636 EP - 641 ER - TY - GEN A1 - Auer, Simon A1 - Krutsch, Werner A1 - Renkawitz, Tobias A1 - Kubowitsch, Simone A1 - Süß, Franz A1 - Dendorfer, Sebastian T1 - Effect of mental demand on leg loading in highly dynamic motion T2 - AnyBody online Webinar, Oct 2020 N2 - Football players have a high risk of leg muscle injuries, especially when exposed to mental stress. Injuries to muscles of the thigh are common in amateur and professional football, representing almost a third of all injuries. These injuries occur primarily in non-contact situations and from overuse. They can lead to a range of costs, including financial costs associated with treatment as well as those associated with long-term recovery, and absence from training and/or competition. Further, there is a high risk of injury recurrence and subsequent injury. Y1 - 2020 ER - TY - CHAP A1 - Muehling, M. A1 - Englert, Carsten A1 - Dendorfer, Sebastian T1 - Influence of biceps tenotomy and tenodesis on post-operative shoulder strength T2 - Jahrestagung der Deutschen Gesellschaft für Biomechanik, March 2017, Hannover, Germany Y1 - 2017 ER -