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The application of inertial motion capture technology in sports training

taking badminton teaching as an example

The application of inertial motion capture technology in the field of sports currently has two main directions. One is the training and teaching level. As an auxiliary training system for coaches, the former coach’s experience-led mode is transformed into a data-based, quantitative, and scientific data analysis mode. The second is the level of sports injury prevention, that is, the concept and category of sports prescription. Whether it is lesson training or sports injury prevention, the value of its commercialization is yet to be explored. At present, the commercialization of this technology in teaching training and sports prescriptions on the market is very low, and the commercialization model is relatively difficult; therefore, this There are not many research enterprises in one field, and more are aimed at specialized or professional sports organizations.

Motion data collection

Badminton is a competitive sport with relatively complex movements. When students and students are learning, they usually rely on the experience of badminton teachers or coaches for guidance; they cannot quantify and visualize movements. We have introduced advanced motion capture technology and posture restoration technology in teaching to assist coaches and teachers to guide and train. According to the needs of training, wear wearable sensors and measure related data, including action type, pace (track) training, upper muscle strength, etc.

Motion data (technical) analysis and modeling

In the training and teaching of badminton, the standard model of this sport is quantified through a scientific basis, and the coaches, professional badminton athletes, and national athletes demonstrate according to the quantitative tutorial, and the combined sensor captures the coach (standard) actions. data, from which a standard model is established.

During the training process, the sports data of trainees and athletes is imported into the model for comparison with the standard model, which can scientifically assist the coaches to carry out specific exercises and action corrections for trainees, optimize actions, and improve sports performance. A modular, digital and visualized motion monitoring platform has been established.

Motion Trajectory Analysis and 3D Playback

Capture the motion trajectory, during the whole badminton teaching process, the motion trajectory that will be shot and the motion trajectory of the human arm can be presented through the host computer software or mobile terminal application; at the same time, it can also play back the motion trajectory restored at different time nodes (posture). Restore) It is convenient for coaches and students to analyze and correct the swing trajectory and action trajectory.

Big Data Analysis of AI Sports

Coaches and students use a badminton training system based on inertial motion capture technology, and all sports data are uploaded to the data analysis center (server, cloud storage); the big data analysis center will conduct big data analysis based on historically accumulated data, that is, artificial intelligence; It can automatically generate personal exercise data reports, establish a personal exercise database, and push relevant exercise data for exercise health management as needed.

Sports health data management, in competitive sports like badminton, is mainly to prevent sports injuries; coaches or health care doctors formulate corresponding sports injury prevention methods and corresponding rehabilitation training programs based on personal sports health data management reports.

One-to-many comprehensive training monitoring and intelligent scoring system

In traditional badminton teaching, coaches will teach face-to-face and one-on-one according to the teaching content; in the assessment, they also need to check and score one by one, which is not efficient; after introducing the teaching and training system of inertial motion capture technology, thoroughly The solution is that a coach can synchronise with multiple students, and can judge, analyze and score through the system data, which improves the teaching quality and teaching efficiency.

The intelligent badminton monitoring and intelligent scoring system can train and score specific content for the students; it can also synchronize the training data of the students and share them with the coaches and parents, so that the coaching technology can understand the training situation of the students and give guidance. For students, the system has also set up a parent terminal, and it also plays a certain role of supervision for parents to understand their children’s practice.