Frontier Observation | What kind of sparks will be collided when motion capture encounters sports co

Source：

2024 Nov. 21

Application:Mocap,Motion Analysis,Motion capture,Swimming,Skiing

Animal catching and sports competition

Recently, the news of Zheng Qinwen, a post-2000 girl, advancing to the Australian Open final and winning the runner up, has become a hot topic. This news has received attention and coverage from major media outlets such as People's Daily, Global Times, and Xinhua News Agency. This is also the second Chinese player to reach the Australian Open final after Li Na in 10 years.

With the acceleration of the construction of a sports powerhouse, it is becoming increasingly normalized to use science and technology to promote sports development. The motion capture technology has become the darling of sports training due to its advantages of high precision, low latency, and real-time recording. It has unexpected effects in sports analysis, rehabilitation training, skill improvement, and other aspects. CHINGMU leverages its advantage in motion capture technology to assist in the training and research of table tennis and badminton at Shanghai Sport University, injecting new energy into sports competition.

How can motion capture technology empower and enhance the level of sports competition?

1.Sports and Health

Athletes inevitably encounter injuries such as sprains and physical injuries during daily training. If relying solely on traditional treatment methods, the recovery speed will be slow and it will affect the progress of the competition.

With the help of motion capture technology, athletes' motion data can be captured with high precision for real-time analysis and modeling, thereby providing objective and accurate motion evaluation results. This can not only help physical therapists better understand the rehabilitation progress of athletes, but also provide scientific basis for developing personalized rehabilitation plans, thereby accelerating the recovery cycle of athletes, reducing their anxiety, and regaining competitive confidence.

2.kinematic analysis

The trajectory and force state generated by human movement are difficult to observe and accurately interpret with the naked eye. But thanks to the support of motion capture technology, its posture can be accurately analyzed and restored. Through the cooperation of motion capture cameras, motion capture software, force measurement platforms, electromyography devices, and other equipment, information such as speed, acceleration, angle, changes in center of gravity, and muscle force during human movement can be obtained, and detailed descriptions and analyses of the movement can be carried out. Including motion trajectory analysis, posture analysis, mechanics analysis, etc.

Through motion trajectory analysis, it is convenient to study the direction and speed of motion; By using posture analysis, it is possible to determine and record posture changes during motion, and conduct control research; Mechanical analysis can calculate parameters such as motion speed, acceleration, and force magnitude through motion data, providing quantitative analysis of the mechanical characteristics of motion.

3.Multi scenario training mode

The deep integration of motion capture technology and virtual reality can create more scenes and environments for sports training, which is not only beneficial for enriching training forms, but also for enhancing athletes' coping abilities.

By constructing a realistic sports environment model, it provides athletes with an ultimate simulation experience. For example, simulating different weather conditions, scenarios, terrains, etc., enables athletes to anticipate and skillfully respond to unexpected situations in advance, thereby reducing unknown factors in actual combat. At the same time, it is conducive to optimizing training methods and techniques, breaking through training bottlenecks, and improving competitive effectiveness.

4.Referee decision-making assistance

Referee decision-making assistance has become an indispensable part of sports competition, especially in sports such as football and tennis that require highly accurate judgments. In this process, motion capture technology plays an indispensable role.

The VAR (Video Assistant Referee) video assisted referee system, with the help of motion capture technology, can capture and reconstruct athletes' movements in real time, including human body dynamics and analysis of the trajectory of using sports equipment. With this data information, it helps referees make more accurate and fair decisions.

Motion capture technology adds icing on the cake to sports competition

1.Track and field training

In track and field events, motion capture technology has become an important means of optimizing athlete performance. Especially in projects that place a high emphasis on skill and strength, such as the 100 meter hurdles, motion capture technology is increasingly highlighting its value.

For example, the Henan Provincial Hurdle Team utilized high-tech technologies such as digital physical training equipment and 3D motion capture technology in sports biomechanics to train and test athlete Chen Jiamin, who is preparing for the 100 meter hurdles at the Olympics. This includes techniques such as starting, on the hurdles, and sprinting, as well as muscle strength. Through modeling and analysis of mechanical data, training problems were identified and training methods were improved.

2.Ski racing

By using motion capture technology to dynamically capture skiers, analyze in detail their key technical elements such as sliding posture, turning skills, and center of gravity transfer. At the same time, it can analyze the skiing movements of athletes on different tracks, in different weather and snow conditions, and provide professional guidance for athletes to adjust their competition strategies, such as selecting the best gliding route, changing arm swinging methods, etc., to cope with complex and changing competition environments. In addition, dynamic capture technology can monitor athletes' physiological load, allocate and recover their physical fitness reasonably, and effectively prevent injuries caused by excessive fatigue.

At present, the Chinese freestyle skiing aerials national team is using motion capture systems for auxiliary training to improve the technical level of skiers.

3.Swimming contest

Swimming competitions not only require strong physical fitness, but also have strict requirements for swimming posture, kicking and other movements, as subtle movements can lead to missing out on gold medals. For top athletes, there are even more stringent requirements, such as a certain standard for ankle angle. With the help of motion capture technology, it is possible to accurately track the body movements of swimmers in different swimming strokes, and convert every stroke, kick, or unusual foot angle into concrete data indicators. In order to conduct analysis and comparison, improve coordination, and maximize advantages.

For example, the US national swimming team has achieved impressive results with the help of high-speed motion capture technology. Nathan Adrian, an athlete who has won Olympic gold medals multiple times, also said that motion capture technology has brought him a lot of help in daily training.

Specific Case - Cooperation between CHINGMU and Shanghai Sport University

For table tennis and badminton, everyone should be familiar with them. Our table tennis has an absolute advantage in international competition, while badminton also has great strength and potential. There was the super Dan Lin Dan in the past, followed by rising stars such as Chinese young players Li Shifeng and Wang Chang. For these two national level sports, CHINGMU is fortunate to collaborate with Shanghai Sport University to customize motion capture software for table tennis and badminton analysis, and provide motion capture technology support to empower physical education teaching and sports research.

Academic research on enhancing the efficiency of dynamic capture technology in table tennis

CHINGMU's motion capture technology assists students from the China Table Tennis College of Shanghai Sport University in conducting a master's thesis research on the risk of ankle and knee joint injuries in table tennis athletes after fatigue: using the forehand arc circle. Through the visualization and data-driven presentation of details such as the motion trajectory, limb force situation, and path changes of the research object before and after exercise, it provides a real, scientific, testable and argumentative basis for the master's thesis research, reveals the muscle activity characteristics of athletes during fatigue, and provides a theoretical basis for finding methods to reduce the risk of joint injuries in athletes. In addition, based on this research, students efficiently completed their master's theses and received recognition from professional teachers in the college.

Customized table tennis analysis software

In response to the demand for motion analysis, CHINGMU has customized and developed table tennis motion analysis software using the MC1300 motion capture system, providing important references for daily teaching, training, research, etc. in the college, improving teaching quality, and enhancing the professional competence of students and athletes.

This software can monitor information such as racket position, racket rotation, speed, angular velocity, and the angle between the racket face and the ground. It is also possible to compare and analyze the motion data of athletes from both sides by viewing the position and rotation information of 23 human bones and joints. In addition, analyzing joint injuries and recovery progress during exercise using a force measuring platform is of great help for evaluating and correcting athletes' movements, as well as preventing and recovering from injuries.

Customized Badminton Sports Analysis Software

While conducting analysis on table tennis, CHINGMU has developed a customized badminton analysis software for the Badminton School of Shanghai Sport University using the MC1300 motion capture system.

This software can simultaneously monitor the movement status and trajectory of athletes, badminton players, and rackets, and support online/offline data analysis for single or double players. Multi dimensional comparative analysis functions enable visualization of sports data, helping athletes develop targeted training plans and improve sports performance.

Integrating the core of technology with sports competition can not only significantly improve athletes' performance, but also better embody the spirit of "faster, higher, stronger" in sports competition. With the development of motion capture technology, it will add momentum to more sports competitions and empower sports development in the future.