離散要素法による排石予測シミュレータを用いた回転運動が自然排石に与える影響の検討

抄録

In this study, we visualized and analyzed the trajectory of kidney stones using both experimental simulations and a stone expulsion prediction simulator by altering the rotational direction in a motion simulating a cartwheel. The results indicated that leftward rotation led to stone expulsion in all cases, suggesting that cartwheeling is an effective exercise for the natural expulsion of kidney stones. Furthermore, the rotational direction relative to the kidneys' position is important for natural stone expulsion. The stone expulsion prediction simulator showed qualitative and quantitative agreement with the experimental results, suggesting it can sufficiently replicate the phenomenon. In the future, we plan to investigate simpler and easier exercises for anyone to perform.