Lower Leg Joint Strategies in the Outside Pass in Soccer

Yudai Yamamoto, Viktor Kozák, Ikuo Mizuuchi

2025

Abstract

We study the leg motion for an outside pass in soccer, observing four different movement strategies. The aim of this research is to validate the presence of these four strategies by training an agent with a higher reward for kicking a faster ball. Additionally, we aim to explore the role of the collateral ligaments’ stiffness in the outside pass. We built two leg models: (a) a two-degree-of-freedom leg model that applies torque around the hip joint, and (b) a three-degree-freedom leg model that applies pitch-roll-yaw torque around the hip joint and pitch torque around the knee joint. We trained a Deep Deterministic Policy Gradient (DDPG) agent using these models and analyzed the torques around the hip and knee joints, as well as the ball velocity after the leg loses contact with the ball. We observed three strategies similar to human behavior throughout agent learning.

Paper Citation

in Harvard Style

Yamamoto Y., Kozák V. and Mizuuchi I. (2025). Lower Leg Joint Strategies in the Outside Pass in Soccer. In Proceedings of the 18th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIOINFORMATICS; ISBN 978-989-758-731-3, SciTePress, pages 495-503. DOI: 10.5220/0013306700003911

in Bibtex Style

@conference{bioinformatics25,
author={Yudai Yamamoto and Viktor Kozák and Ikuo Mizuuchi},
title={Lower Leg Joint Strategies in the Outside Pass in Soccer},
booktitle={Proceedings of the 18th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIOINFORMATICS},
year={2025},
pages={495-503},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013306700003911},
isbn={978-989-758-731-3},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 18th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIOINFORMATICS
TI - Lower Leg Joint Strategies in the Outside Pass in Soccer
SN - 978-989-758-731-3
AU - Yamamoto Y.
AU - Kozák V.
AU - Mizuuchi I.
PY - 2025
SP - 495
EP - 503
DO - 10.5220/0013306700003911
PB - SciTePress