A total of 679 core journal papers retrieved from CNKI database were used as literature samples. CiteSpace software was used to visually analyze the titles, keywords, abstracts, and other literature materials. From the perspective of scientific knowledge graph, the distribution of authors and institutions with great influence in the research of aerobics was discussed. In order to clarify the research characteristics of aerobics, hot subjects and frontier evolution. Study found that aerobics research focus has been developed from the early public teaching mode, investigation and countermeasure research now gradually to the sport, competitive aerobics, physical education and aerobics athletes’ transition, aerobics without expanding the research field, research topics tend to diversification, popular, empirical and theoretical research is also in constant depth development. The research frontiers are divided into three periods: early stage, middle stage, and recent stage, with different research directions and emphases. It is suggested to construct multidisciplinary integrated development, enrich the vision of teaching and competition, improve the local regional integration policy, and comprehensively display the research and development status of aerobics.

The proposal of the core competence of the physical education (PE) discipline in the curriculum reform reflects the increasing requirements for the training of talents in the new era, and the occurrence of COVID-19's epidemic era has accelerated the pace of teaching reform. Internet technology plays a vital role in promoting teaching reform during the epidemic period. The large-scale online teaching experience during the epidemic control period makes people realise they need to change education in the post-epidemic era. The new normality of education should be a blended teaching model, the critical point and breakthrough of PE specialized courses reform. This study takes blended learning as the primary research object and puts forward the design strategies for the blended teaching of PE majors from five aspects: the principles of teaching design, teaching methods, teaching resources, teaching process and learning evaluation. Then we select the football specialized course of the Physical Education Department of Handan University as an example to perform the teaching practice and effect analysis. Practical research shows that the teaching of this study can effectively promote students' learning.