Simulation and Robotics for Results Enhancement and Risk Reduction in Sports (SaRERiS)

This idea comes from our work in modeling the dynamics of human/humanoid motion. The intention was to take the advanced dynamic model of humanoids, adapt it (as much as possible) to apply for humans, and use it to simulate motions in sport. Is there a practical and applicable result? Yes; let us explain. If the movement of a sportsman was measured and recorded, the dynamic model makes possible to calculate dynamic characteristics that are of high relevance but cannot be measured: joint toques, joint reaction forces (e.g. loads transmitted through the elbow from upperarm to forearm or reverse), energy consumption, etc. Based on these results, one may locate inefficient or potentially risky (for possible injury) situation. The next step is to use the simulator to modify the movements in order to eliminate the noticed threats. Finally, the sportsman should be retrained to acquire the new revised motion. For retraining, a robotic assistive device (perhaps in the form of a light-weight partial exoskeleton or a partial active suit) could be developed and applied.

The background for this idea can be found in papers [Ref. 1-3] and the book chapter [4]. Particularly, pay attention to [4]; the appearance of the book with such title and scope proves that the idea is becoming very actual.

[1] V. Potkonjak, M. Vukobratovic, “A Generalized Approach to Modeling Dynamics of Human and Humanoid Motion”, Intl. Journal of Humanoid Robotics (World Scientific publ.), Vol. 2, No. 1, pp.1-24, 2005.

[2] V. Potkonjak, M. Vukobratovic, K. Babkovic, B. Borovac, “General Model of Dynamics of Human and Humanoid Motion – Feasibility, Potentials and Verification”, Intl. Journal of Humanoid Robotics, Vol. 3, No. 1, pp. 21-48, March 2006.

[3] M. Vukobratovic, V. Potkonjak, K. Babkovic, B. Borovac, “Simulation Model of General Human and Humanoid Motion”, Intl. J. Multibody System Dynamics (Springer), Vol. 17, No. 1, pp. 71-96, Febr. 2007.

[4] V. Potkonjak, M. Vukobratovic, K. Babkovic, B. Borovac, Chapter: “Dynamics and Simulation of General Human and Humanoid Motion in Sports”, in Nigel Pope’s (Editor) book: “Digital Sport for Performance Enhancement and Competitive Evolution: Intelligent Gaming Technologies”, Information Science Reference (an imprint of IGI Global), USA, May 2009.

The following “movies” visualize the results of simulation for some sporting motions.

Some of the “movies” of the human/humanoid motion in sports are displayed below. Characteristic instants defining the phases of motion are indicated:

3D landing motion

3D landing motion

Tennis player motion

Tennis player motion

Goalkeeper motion

Goalkeeper motion

Handball player motion

Handball player motion