Li Hai, Khoo Selina, Yap Hwa Jen
Centre for Sport and Exercise Sciences, University of Malaya, Kuala Lumpur 50603, Malaysia.
College of Sport, Neijiang Normal University, Neijiang 641112, China.
Sensors (Basel). 2020 Nov 2;20(21):6258. doi: 10.3390/s20216258.
This study aimed to evaluate the motion accuracy of novice and senior students in Baduanjin (a traditional Chinese sport) using an inertial sensor measurement system (IMU). Study participants were nine novice students, 11 senior students, and a teacher. The motion data of all participants were measured three times with the IMU. Using the motions of the teacher as the standard motions, we used dynamic time warping to calculate the distances between the motion data of the students and the teacher to evaluate the motion accuracy of the students. The distances between the motion data of the novice students and the teacher were higher than that between senior students and the teacher ( < 0.05 or < 0.01). These initial results showed that the IMU and the corresponding mathematical methods could effectively distinguish the differences in motion accuracy between novice and senior students of Baduanjin.
本研究旨在使用惯性传感器测量系统(IMU)评估新手和高年级学生在八段锦(一种中国传统运动)中的动作准确性。研究参与者包括九名新手学生、十一名高年级学生和一名教师。所有参与者的动作数据均使用IMU测量了三次。以教师的动作作为标准动作,我们使用动态时间规整算法来计算学生与教师动作数据之间的距离,以评估学生的动作准确性。新手学生与教师动作数据之间的距离高于高年级学生与教师动作数据之间的距离(<0.05或<0.01)。这些初步结果表明,IMU及相应的数学方法能够有效区分八段锦新手和高年级学生在动作准确性上的差异。