Kawabata Riku, Yokoyama Moeka, Matsumoto Yuka, Kubota Keisuke, Kosuge Sachiko, Sunaga Yasuyo, Kanemura Naohiko
Graduate School of Medicine, Nagoya University, Aichi 466-8550, Japan; Graduate Course of Health and Social Services, Saitama Prefectural University, Saitama 343-8540, Japan.
Graduate Course of Health and Social Services, Saitama Prefectural University, Saitama 343-8540, Japan; Faculty of Health Science, Juntendo University, Tokyo 113-8421, Japan.
J Electromyogr Kinesiol. 2025 Feb;80:102959. doi: 10.1016/j.jelekin.2024.102959. Epub 2024 Nov 24.
This study aims to elucidate the biomechanical characteristics of turning in daily life by analyzing the three-step process of approach, turn, and departure phases. The research involved ten healthy young individuals performing straight walking and 90° turns, categorized into Side-Step (SS) and Cross-Step (CS) turns. Using a 17-camera motion capture system and force plates, the study measured joint angles, moments, and center of mass (COM) variations. The results indicated that turning involves rotational movements of the lower limbs across three phases, with distinct biomechanical roles for each step. From the perspective of COM control, instability increased at the departure foot in SS, while in CS, stability was maintained at both the approach and departure foot. This study emphasized the importance of rotational movements and rotational forces in the lower limb joints during turning. It also revealed that the center of mass is controlled across three steps. These findings highlight the need for a comprehensive analysis of turning and add a new perspective to gait analysis during turning.
本研究旨在通过分析接近、转弯和离开阶段的三步过程，阐明日常生活中转弯的生物力学特征。该研究让10名健康的年轻人进行直线行走和90°转弯，分为侧步（SS）转弯和交叉步（CS）转弯。使用17台摄像机的动作捕捉系统和测力板，该研究测量了关节角度、力矩和重心（COM）变化。结果表明，转弯涉及下肢在三个阶段的旋转运动，每个步骤都有不同的生物力学作用。从COM控制的角度来看，SS中离开脚处的不稳定性增加，而在CS中，接近脚和离开脚处的稳定性都得以维持。本研究强调了转弯过程中下肢关节旋转运动和旋转力的重要性。它还揭示了重心在三个步骤中受到控制。这些发现凸显了对转弯进行全面分析的必要性，并为转弯过程中的步态分析增添了新的视角。
