Jiang Weilan, An Bingchen, Liu Shuangtao, Xue Chuan, Niu Chunlai, Qiu Jie, Hu Qilian, Wang Yaping, Chen Liang, Wang Liao
Department of Rehabilitation Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai, CHN.
Department of Orthopedics, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, CHN.
Cureus. 2024 Feb 21;16(2):e54620. doi: 10.7759/cureus.54620. eCollection 2024 Feb.
It has already been demonstrated by previous studies that Baduanjin training can improve the body's balance. However, its biomechanical mechanism remains unknown. Center of gravity (COG) trajectory analysis is an essential biomechanical test to explore the balance ability of the human body. Previous studies have not used the COG trajectory analysis technique to research Baduanjin training. The study utilizes COG trajectory analysis to analyze the trajectory of COG during Baduanjin training and compare it with that of walking, which is a common exercise for improving balance and aerobic ability, to determine if Baduanjin exercises affect the COG more than walking.
Eight healthy female college students performed the walking and the eight forms of Baduanjin, a total of nine motions. The lower body kinematics were captured by the Vicon Motion Capture and Analysis System, while the kinetic data were acquired by the Kistler 3D Force Platform. The data were imported into Visual 3D to process the trajectory of the COG displacement amplitude, velocity, and acceleration of each motion. The COG horizontal envelope areas were calculated by Origin 9.0 Software (Origin Lab, Northampton, Massachusetts, USA) .
Specific motions of Baduanjin provided significantly higher COG displacement amplitude, velocities, and acceleration training than walking. The F2 and F5 motions could provide a larger COG horizontal envelope area than walking. On the x-axis, F2 provided a greater COG displacement amplitude than walking, F1, F2, and F5 provided greater velocities, while all the motions provided greater accelerations. On the y-axis, all the motions except F2 provided greater COG displacement velocities and accelerations than walking. On the z-axis, F1-7 provided a greater COG displacement amplitude than walking, all the motions provided greater velocities, while all the motions except F2 provided greater accelerations.
Baduanjin training provides a more intense COG perturbation than walking, which may be a more challenging balance training than walking.
先前的研究已经证明八段锦训练可以改善身体平衡。然而，其生物力学机制仍然未知。重心（COG）轨迹分析是探索人体平衡能力的一项重要生物力学测试。先前的研究尚未使用COG轨迹分析技术来研究八段锦训练。本研究利用COG轨迹分析来分析八段锦训练期间的COG轨迹，并将其与步行（一种改善平衡和有氧能力的常见运动）的轨迹进行比较，以确定八段锦练习对COG的影响是否大于步行。
八名健康的女大学生进行了步行和八段锦的八种招式，共九种动作。下半身运动学数据由Vicon运动捕捉与分析系统采集，动力学数据由奇石乐三维测力平台获取。数据被导入Visual 3D以处理每个动作的COG位移幅度、速度和加速度轨迹。COG水平包络面积由Origin 9.0软件（美国马萨诸塞州北安普顿的Origin Lab公司）计算得出。
八段锦的特定动作比步行提供了显著更高的COG位移幅度、速度和加速度训练。F2和F5动作比步行能提供更大的COG水平包络面积。在x轴上，F2比步行提供了更大的COG位移幅度，F1、F2和F5提供了更大的速度，而所有动作都提供了更大的加速度。在y轴上，除F2外的所有动作比步行提供了更大的COG位移速度和加速度。在z轴上，F1 - 7比步行提供了更大的COG位移幅度，所有动作都提供了更大的速度，而除F2外的所有动作都提供了更大的加速度。
八段锦训练比步行提供了更强烈的COG扰动，这可能是一种比步行更具挑战性的平衡训练。
