Introduction: Many studies have focused on the technique involved in running board diving, however few have examined standing springboard diving. The purpose of this study is to reveal the biomechanical characteristics of the take-off in standing springboard diving by analyzing the techniques of World Champion He Chong and five other male athletes The study findings will provide information to improve performance. Methods A NAC high speed camera (100HZ/S) was used to obtain research-quality videos of the selected athletes competing or training in standing springboard diving. The APAS system was used to analyze video images of the take-off motions for seven selected athletes. The videos were digitized and the row data was smoothed by using a low pass filtering method with 8Hz cut-off frequency. A literature review and statistical and mathematical analyses were used to analyze the obtained data. Results 1. Duration of the board pressing phase: The duration of this phase He Chong & Pan Zhao Wei was 0.02s and 0.01s respectively; both were much shorter than that of the other five athletes (more than 0.03s). 2. Posture during take-off The minimum angles of the hip, knee & ankle joints of He Chong during the body buffering phase (after the board-pressing phase) were 59°, 59° and 41° respectively, whereas the other six athletes displayed much larger joint angles. 3. Stretching and swing phase During take off, hip angle speed synchronized with knee angle speed and peak velocity was reached at approximately at the same moment for each joint angle. Shoulder angle speed, ankle angle speed and knee angle speed reached their peak speed sequentially. Conclusions 1. A shorter duration of the body descent after board-pressing, contributes to the transformation of the kinetic energy of the descending body to elastic potential energy of the board. More exercises involving muscle eccentric contractions and isometric contractions of the lower limb extensors are recommended to shorten the duration of this phase. 2. Knee extensor strength rather than the flexibility of the knee determine the minimum knee angle during the take-off phase in board diving. It is suggested that diving athletes work on improving core strength to improve their ability to apply force to the board.
© Copyright 2008 2008 International Convention on Science, Education and Medicine in Sport: Proceedings, Vol. III. Julkaistu Tekijä People´s Sports Publishing House. Kaikki oikeudet pidätetään. / Kääntänyt https://www.DeepL.com/Translator