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Latest peer reviewed papers

Chen J., Hahn D. & Power G.A. (2019). Shortening-induced residual force depression in humans. Journal of Applied Physiology.
doi: 10.1152/japplphysiol.00931.2018.

Raiteri, B. J. and Hahn, D. (2018). A reduction in compliance or activation level reduces residual force depression in human tibialis anterior. Acta Physiol.
doi:10.1111/apha.13198

Hahn, D. (2018). Comments on Doguet et al. (2017) ‘Muscle length effect on corticospinal excitability during maximal concentric, isometric and eccentric contractions of the knee extensors’. Experimental Physiology 103, 1435–1436. doi:
10.1113/EP087084

Franchi, M.V., Raiteri, B.J., Longo, S., Sinha, S., Narici, M.V., Csapo, R., 2018. Muscle Architecture Assessment: Strengths, Shortcomings and New Frontiers of in Vivo Imaging Techniques. Ultrasound in Medicine & Biology. doi: 10.1016/j.ultrasmedbio.2018.07.010

Hahn, D., Riedel, T.N. (2018). Residual force enhancement contributes to increased performance during stretch-shortening cycles of human plantar flexor muscles in vivo. Journal of Biomechanics. doi: 10.1016/j.jbiomech.2018.06.003.

Raiteri, B. J. (2018). Aponeurosis behaviour during muscular contraction: A narrative review. European Journal of Sport Science. doi: 10.1080/17461391.2018.1472299.

Hahn, D. (2018). Stretching the limits of maximal voluntary eccentric force production in vivo. Journal of Sport and Health Science. doi: 10.1016/j.jshs.2018.05.003.

Raiteri, B. J., Cresswell, A. G. & Lichtwark, G. A. (2018). Muscle-tendon length and force affect human tibialis anterior central aponeurosis stiffness in vivo. Proceedings of the National Academy of Sciences of the United States of America. doi: 10.1073/pnas.1712697115.

Farris DJ, Raiteri BJ (2017). Elastic ankle muscle-tendon interactions are adjusted to produce acceleration during walking in humans. Journal of Experimental Biology. doi: 10.1242/jeb.159749.

Zinke, F., Bakenecker, P. & Hahn, D. (2017). Influence of platinum harmonized textile on neuromuscular, systemic and subjective recovery. PloS ONE, 12 (10), e0186162. doi: 10.1371/journal.pone.0186162.

Windisch, S., Seiberl, W., Hahn D., Schwirtz, A. (2017). Physiological responses to firefighting in extreme temperatures do not compare to firefighting in temperate conditions. Frontiers in Physiology 8, 619. doi: 10.3389/fphys.2017.00619

Paternoster F.K., Hahn D., Stöcker F., Schwirtz A., Seiberl W. (2017). Oxygen consumption of gastrocnemius medialis muscle during submaximal voluntary isometric contractions with and without preceding stretch. Scientific Reports 7(1):4674.
doi:10.1038/s41598-017-04068-y

Windisch., S., Seiberl, W., Schwirtz, A. & Hahn, D. (2017). Relationships between strength and endurance parameters and air depletion rates in professional firefighters.Scientific Reports 7:44590.
doi:10.1038/srep44590

Farris DJ, Raiteri BJ (2017). Modulation of leg joint function to produce emulated acceleration during walking and running in humans. Royal Society Open Science 4(3): 160901.
DOI: 10.1098/rsos.160901

Hahn, D., Bakenecker, P. and Zinke, F. (2016), Neuromuscular performance of maximal voluntary explosive concentric contractions is influenced by angular acceleration. Scand J Med Sci Sports. doi:10.1111/sms.12812

Seiberl W., Hahn D., Paternoster F.K. (2016). Reduced activation in isometric muscle action after lengthening contractions is not accompanied by reduced performance fatigability. Scientific Reports 6:39052. doi:10.1038/srep39052

Sandmann, G.H., Hahn, D., Amereller, M., Siebenlist, S., Schwirtz, A., Imhoff, A.B., Brucker, P.U. (2016). Mid-term functional outcome and return-to-sport after proximal hamstring tendon repairs. eFirst. International Journal of Sports Medicine. DOI: 10.1055/s-0035-1564170

Paternoster, F.K., Seiberl, W., Hahn, D., Schwirtz, A. (2016). Residual force enhancement during multi-joint leg extensions at joint-angle configurations close to natural human motion. Journal of Biomechanics, 49, S. 773-779.

Seiberl, W., Power, G.A., Herzog, W., Hahn, D. The stretch-shortening cycle revisited: Residual force enhancement contributes to performance enhancement during fast stretch-shortening of human m. adductor pollicis. Physiological Reports, Vol. 3 no. e12401.

Seiberl, W., Power, G., Hahn, D. Residual force enhancement in humans: Current evidence and unresolved issues. J Electromyogr Kinesiol (2015), doi:10.1016/j.jelekin.2015.04.011.

Hahn D, Herzog W, Schwirtz A. Interdependence of torque, joint angle, angular velocity and muscle action during human multi-joint leg extension. Eur J Appl Physiol, (2014), doi:10.1007/s00421-014-2899-5

We are very proud and congratulate our student Tobias Weingarten for winning this year’s RUB Student’s Award for his excellent Bachelor Thesis entitled ‘Is m. vastus lateralis actively lengthening in human walking?’ By using B-mode ultrasound and electromyography during a gait analysis, Tobias found that the knee extensor muscle vastus lateralis actively lengthens and shortens during the stance phase of walking and therefore might contribute to the economy of human walking gait.

Meistens verhält sich Bindegewebe wie ein Gummiband. Aber nicht immer. Lesen Sie die neuesten Erkenntnisse zur Biomechanik und zur Funktion von Aponeurosen aus der Studie von Dr. Brent Raiteri.

Where does the strength of stretched muscles come from? Learn more about our research on in vivo eccentric muscle function in the RUB news.

We are very thankful to the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) for their support of our research on stretch-shortening cycle contractions (SSCs). The aim of this research project is to provide a holistic analysis of contractile, biomechanical, and neuromechanical factors contributing to the increased performance during SSCs. Overall, this research project increases knowledge on basic muscle function and helps to better understand SSCs as one of the most important type of muscle action of everyday human locomotion. This is not only interesting in terms of basic research on muscle function but also has the potential to contribute to the development of efficient humanoid motors as used in medical devices, robotics and prosthetics.

We are very proud and congratulate our team member Dr Brent Raiteri for becoming 1^st place winner of the Young Investigators Award of the European College of Sport Science (ECSS)! This competitive and prestigious award is an integral part of the annual ECSS congresses and was established for the promotion of young scientists and the fostering of scientific excellence. Brent was awarded for his outstanding research on in vivo human muscle mechanics entitled “Muscle-tendon length and force affect human tibialis anterior central aponeurosis stiffness in vivo”. Within this study, which was conducted under the supervision of Dr Andrew Cresswell and Dr Glen Lichtwark at the University of Queensland (Brisbane, Australia), it was shown that the aponeurosis has distinct elastic features compared to the tendon that should no longer be neglected when analyzing in vivo human muscle function.

We are very thankful to the Mercator Research Center Ruhr (www.mercur-research.de/) for supporting our research on the giant muscle protein titin’s role during eccentric contractions. In a one-year pilot project we will setup experiments that involve in vivo biomechanical testing and in vitro muscle testing to investigate human muscle and neurophysiology responses to training.

We are very thankful to the International Society of Biomechanics who awarded our PhD Student Patrick Bakenecker with their Conference Travel Grant. This enables Patrick to attend the upcoming XXVI Congress of the International Society of Biomechanics in Brisbane, Australia and to present his research on eccentric muscle function. http://www.biomech2017.com/

International Society of Biomechanics: https://isbweb.org/

We warmly welcome our new team member Brent J. Raiteri. Brent received a Bachelor with Honors in Exercise and Sport Science from the School of Human Movement and Nutrition Sciences (HMNS) at the University of Queensland, Australia. Afterwards he did his doctoral training in Biomechanics at HMNS and just submitted his thesis entitled “Contraction dependent geometrical changes in human lower limb muscle and aponeurosis”. Brent will join the Department of Human Movement Science as a postdoctoral researcher for the next two years investigating the Neuromechanics of human muscles.
We further welcome our two new student assistants Janna Wohlfarth and Tobias Weingarten.

Department of Human Movement Science with 6 presentations in cooperation with colleagues from Biomechanics TU München and TU Dortmund.

Das BISp bewilligte zum 01. Juni die Förderung von zwei Forschungsprojekten mit einem Gesamtvolumen von ca. 200.000 €. Im Rahmen des Projektes „VENEX Regenerationsbekleidung“ steht die Unterstützung der Erholungsfähigkeit der deutschen Top-Schwimmer inkl. der aktuellen Olympiamannschaft im Fokus. Das Projekt „Der schnelle Arm im Tennis“ befasst sich in Kooperation mit dem LFB Trainingswissenschaft (Prof. Ferrauti) mit der trainings- und bewegungs-wissenschaftlichen Optimierung des Aufschlags im Nachwuchsleistungstennis. Die Projekte werden in enger Abstimmung mit dem Deutschen Schwimm-Verband e.V. bzw. dem Deutschen Tennis Bund e. V. durchgeführt.

February 10-12 Walter Herzog, Professor in Kinesiology/ Biomechanics and Director of the Human Performance Laboratory at the University of Calgary visits the Department of Human Movement Sciences. He will give a talk on „Muscle properties and muscle mechanics in sports“ on Thursday, February 11 at the Faculty of Sport Science. Interested persons welcome.

January 13-15 Andrew Cresswell, Professor in Biomechanics/Neurophysiology at the University of Queensland, Brisbane, Australia and President of the International Society Biomechanics visits the Department of Human Movement Sciences. He will give two talks on neuromuscular fatigue and foot biomechanics on Thursday, January 14 at the Faculty of Sport Science. Interested persons welcome.

Physiological Responses of Firefighters to a Flashover Training

Residual force enhancement in humans: moving beyond purely mechanical properties.

The force velocity relation of multi-joint leg extension is neither linear nor hyperbolic

Heute ist Welttag des Purzelbaums! Und wir haben uns gefragt: Warum ist ausgerechnet der Purzelbaum die erste turnerische Übung, die Kinder lernen? RUB-Sportwissenschaftler Prof. Dr. Daniel Hahn hat eine Theorie.

Wechsel am LFB Bewegungswissenschaft
Zum 01.10.2013 hat Prof. Dr. Daniel Hahn die Leitung des Lehr- und Forschungsbereichs Bewegungswissenschaft von Prof. Dr. August Neumaier übernommen. Dr. Hahn studierte Sportwissenschaft an der TU München und promovierte ebenda zum Dr. rer. nat. im Bereich Biomechanik. Als Postdoc forschte Dr. Hahn am Centre for Sensorimotor Neuroscience der University of Queensland, Brisbane, Australia und habilitierte schließlich zum Thema ‚Neuromechanik muskulärer Aktionen der unteren Extremität‘. Das Forschungsinteresse von Dr. Hahn liegt im Bereich der neuromuskulären Funktion und der neuronalen Kontrolle menschlicher Bewegung.