Key transition technology of ski jumping based on inertial motion unit, kinematics and dynamics.

"Declarations Ethics approval and consent to participateThis research is a part of the key R&D plan of China for Winter Olympics. This study does not involve personal privacy. All methods were carried out in accordance with relevant guidelines and regulations. All subjects were informed about the testing procedure. Consent for publicationNot applicable. Competing interestsAll authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest, or non-financial interest in the subject matter or materials discussed in this manuscript. The authors have no competing interests to disclose. Competing interests All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest, or non-financial interest in the subject matter or materials discussed in this manuscript. The authors have no competing interests to disclose."

"Funding This work was supported by the key R&D plan of China for Winter Olympics (Ministry of Science and Technology of the People’s Republic of China, Grant No. 2020YFF0303800) and the capacity building project of local colleges and universities of Shanghai Science and Technology Commission (Department of Science and Technology of Shanghai, Grant No. 19080503300)."