Research
Understanding motor skills based on coordination and reproducibility
We are captivated by the exceptional performance of athletes. For example, expert baseball or basketball players can throw a ball with far greater accuracy than amateur players. Our laboratory examines the question of how skilled players achieve such an accuracy, focusing on coordination and reproducibility. We have developed a framework for analyzing coordination and identified skilled-specific coordination and reproducibility.

Related papers
- Kimura, A., Nakashima, H., Inaba, Y. (2023). Biomechanical role can vary depending on the conditions of the motor task. Human Movement Science, 92, 103150.
- Kimura, A., Yoshioka, S., Fukashiro, S. (2023). Joint Coordination with a Change in Task Constraint During Accurate Overhead Throwing. Journal of Applied Biomechanics, 39(3), 169-178.
- Kimura, A., Yokozawa, T., Ozaki, H. (2021). Clarifying the biomechanical concept of coordination through comparison with coordination in motor control. Frontiers in Sports and Active Living, 3, 753062.
- Kimura, A., Omura, L., Yoshioka, S., Fukashiro, S. (2021). Identifying coordination between joint movements during a throwing task with multiple degrees of freedom. Human Movement Science, 77, 102799.
Motion analysis in various sports movements
By analyzing how the human body moves and how forces are exerted in the human body, we aim to provide insights on performance enhancement and injury prevention. We have examined the role of the joint torque in producing ball velocity during baseball pitching. In the future, we aim to identify the characteristics of elite athletes by comparing their movements with those of non-elite athletes.

Related papers
- Kimura, A., Nakashima, H., Kuroyanagi, S., Ando, Y., Liao, P., Sakurai, S. (2023). Estimating flight trajectories of breaking balls from four-seam fastballs. Frontiers in Sports and Active Living, 5, 1092520.
- Kimura, A., Yoshioka, S., Fukashiro, S. (2020). Contribution of hip joint kinetics to rotate the pelvis during baseball pitching. International Journal of Sport and Health Science, 18, 16-27.
- Kimura, A., Yoshioka, S., Omura, L., Fukashiro, S. (2020). Mechanical properties of upper torso rotation from the viewpoint of energetics during baseball pitching. European Journal of Sport Science, 20(5), 606-613.