抱歉上次沒有去火鍋會阿... 其實我們投稿延到1/19(美國時間) 所以那天晚上幫學姊做完實驗又繼續趕投稿的東西 終於給他投出去啦~~呼!! 因為時間緊迫所以有些我發現的東西還沒辦法寫出來 或是有些肉眼看到的現象還在想辦法量化當中 另外因為個人差異其實蠻值得探討的 但統計與文章都不太能往個人動作來看 所以如果想要知道可以再問我 期末報告是把全文整理出來 這是我的第一篇投稿文章 應該有很大的進步空間 以下是我投的摘要你們可以參考看看也順便給我一些意見或感想 例如你認為什麼是影響前空翻動作實施的關鍵或自己在練習時會遇到的問題等等 甚至對我寫的東西的質疑和建議喔!! Tittle: The effect of experience on performing the forward tucked salto under different task constraints Abstract: In gymnastics, technique, posture, and aesthetic execution of the repertoire, as well as the stability of landing, are the key factors evaluated by the judges. When performing the forward tucked salto (FTS), to fold the body completely, and to generate sufficient movement height for a longer aerial time (AT) facilitate the gymnasts to execute better landing. The purpose of this study was to investigate how gymnasts of different levels modulate their movement while executing the FTS from different heights. Six elite and 6 club-member gymnasts were asked to perform 2 sets of 10 single FTSs, from the 90 cm platform and with a run-up on ground. Reflected markers were attached to their bodies on the temple, shoulder, elbow, wrist, chest, hip, knee, and ankle position. A 200 fps high speed camera was used to capture the sagittal view of their performance, and the markers were digitized for data analysis. The results showed that in the 90-cm height condition, the elite group had more successful trials (the clean landing); revealed longer AT, and generated higher hip position, ps<.05. Moreover, they revealed the smaller minimum hip angle after taking off in both conditions, p<.05. Examination of the phase plane of hip and shoulder joints, the elite group demonstrating negative shoulder angle when extending their body and then the decreasing hip angle to dampen the impact about 50ms before landing. In conclusion, experienced gymnasts could elevate their hip higher and tuck their body tighter after taking off, which increased the AT of the movement; besides, they extend their bodies with the backward swinging arms and folded bodies earlier before landing so as to execute the FTS successfully. These findings could apply to training program for better performance, and provided the evidence of information affordance that experience of the organism plays an important role in action (Gibson, 1979). Key Words: gymnastics, forward tucked salto, hip angle, phase plane, affordance. --

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