着地衝撃を緩和するランニングフォーム構築のための張力・音付与による体幹・骨盤前傾姿勢の調整支援に関する研究

抄録

One of the factors causing running injury is landing impact. Suppression of the maximum value of impact force in the vertical direction (IP: Impact peak), and the loading rate (LR), is considered to reduce the risk of running injury. We focused on the phenomenon that the landing impact is reduced by the forward leaning posture and investigated the method to support the adjustment of the anterior pelvic tilt and the trunk inclination by using the device. Therefore, we devised an idea of providing tensile force around the pelvis angle to make it easier to perceive the difference in muscle and skin changes and by providing sound according to the trunk angle. Based on this idea, two types of devices were constructed experimentally: a pelvis angle adjustment support unit that provides tensile force by a tension spring attached to the sternum and sacrum according to the forward tilt of the pelvis, and a trunk angle adjustment support unit that generates an adjusting sound that changes according to the trunk angle with using an inertial sensor. As a result of running experiments to investigate the effects of these two devices on pelvic and trunks angles and landing impact, we found that the devices will support forward tilt on pelvic and trunk angles.