Thorsten Dahmen

Doctoral Student in the PhD program from 15.10.2007 to 31.07.2008.
Associated Doctoral Student in the PhD program since 01.08.2008.

advisors

1. Prof. Dr. Dietmar Saupe
2. Prof. Dr. Oliver Deussen

organisational data

Room	:	Z 704
Tel.	:	+49 (0)7531 / 88-2220
E-mail	:	thorsten.dahmen "at" uni-konstanz.de
Other Resources	:	www.thorsten-dahmen.de

project description

Simulation and Optimization of Race-Bike Training on Realistic Tracks

Computer science in sports has developed as a new interdisciplinary branch of research. The Powerbike Project contributes to the subdiciplines of acquisition, processing, analysis and mining of physical and physiological performance data in cycling, computer-aided training control, motion analysis, and information visualization.

The goal of the Powerbike project is to realistically simulate outdoor riding on existing tracks in the lab, extract the relevant information of a multitude of available measurement data and visualize this information for optimal training control and performance prediction. This thesis focuses on the simulation and optimization of race-biking on realistic tracks.

We designed a simulator based on a Cyclus2 ergometer (RBM Elektronik), which allows the user to mount his personal bicycle. The resistance control relies on a validated P-v-model that describes the relation between pedaling power P and velocity v on a cycling track whose height profiles was measured by gps. The display of the simulator shows a video playback synchronized with the cyclist's current position on the track together with various course and performance parameters.

The optimal pacing strategy is sought by minimizing the time an athlete needs to complete a course according to the P-v-model subject to physiological side constraints that reflect the individual endurance capacity of an athlete. This system shall enable athletes to familiarize themselves with even unknown tracks and optimally prepare them for competition.

publications

The following list of publications covers only those, which are or were published during participation at the Graduiertenkolleg / PhD program.

Articles in Journals

2011

Dahmen, T., Saupe, D., Calibration of a power-velocity-model for road cycling using real power and height data, International Journal of Computer Science in Sport, Vol. 10, pp. 18-36, December 2011, IACSS Press. abstract
Dahmen, T., Byshko, R., Saupe, D., Röder, M., Mantler, S., Validation of a model and a simulator for road cycling on real tracks, Sports Engineering, Vol. 14, pp. 95-110, November 2011, Springer-Verlag. Link abstract

Conference Papers

2012 2011 2010 2009 2008

2012		Dahmen, T., Saupe, D., Wolf, S., Applications of mathematical models of road cycling, Vienna International Conference on Mathematical Modelling (MATHMOD), Vol. 7, February 2012. abstract
2011		Wolf, S., Dahmen, T., Optimierung der Geschwindigkeitssteuerung bei Zeitfahrten im Radsport, Sportinformatik trifft Sporttechnologie, 8. Symposium der dvs-Sektion Sportinformatik, Daniel Link, Josef Wiemeyer (ed.) , Vol. 217, pp. 235-239, Darmstadt, Germany, 2011, Feldhaus Edition Czwalina. abstract
2010		Dahmen, T., Kalibrierung eines Leistungs-Geschwindigkeits-Modells für Rennradfahrten mit realen Leistungs- und Höhendaten, Sportinformatik trifft Sporttechnologie, 8. Symposium der dvs-Sektion Sportinformatik, Daniel Link & Josef Wiemeyer (ed.) , Darmstadt, Germany, Vol. 217, pp. 75-80, September 2010, Feldhaus Edition Czwalina. abstract
2009		Dahmen, T., Byshko, R., Röder, M., Mantler, S., Saupe, D., Modeling, simulation and validation of cycling time trials on real tracks, International Symposium on Computer Science in Sport, Canberra, Australia, September 2009. Dahmen, T., Simulation and optimization of race-bike training on real tracks (abstract), Gemeinsamer Workshop der Informatik-Graduiertenkollegs und Forschungskollegs 2009, Avanes, A., Fahland, D., Geibig, J., Haschemi, S., Heglmeier, S., Sadilek, D., Theisselmann, F., Wachsmuth, G., Weißleder, S. (eds.) , Dagstuhl, Germany, pp. 22-23, July 2009. abstract Dahmen, T., Saupe, D., A simulator for race-bike training on real tracks (abstract), 14. Annual ECSS Congress, June 2009. abstract
2008		Dahmen, T., Saupe, D., Acquisition of Performance Parameters in Race-Bike Training, Dagstuhl-Seminar, Dagstuhl Seminar Proceedings, 08372 - Computer Science in Sport - Mission and Methods, Vol. 8372, November 2008, Schloss Dagstuhl. Link abstract

curriculum vitae

Since 10/2007	Doctoral Student in the PhD Program, University of Konstanz
06/2007 - 09/2007	Scientific Assistant, Interdisciplinary Center for Scientific Computing, University of Heidelberg
10/2000 - 02/2007	Studies of Electrical Engineering and Information Technology (Diplom), RWTH Aachen
11/2005 - 04/2006	Industrial Internship, Drägerwerk AG, Lübeck
02/2004 - 11/2004	Studies of Physics (PGDipSc), University of Auckland (New Zealand)

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