Deep convolutional neural networks, applications of machine learning in sports science, intelligent training and feedback systems, intelligent wearable devices for sports, computer vision technology, motion capture and data analysis, 3D physical simulation platforms AI and sports detection in sports science, eagle eye and V/AR technology, computer-aided sports training systems, technical motion diagnosis and 3D simulation, sports information management systems and data analysis, simulation and prediction in sports, body data monitoring and prediction, 3D athlete tracking technology, robots in sports training, intelligent sports equipment, etc