終於放寒假啦!!

[vivigo (vivi)]

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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推 jpo:好厲害 祝投稿順利 ^_^b
推 dkkim:喔喔 原來關鍵在臀部抬得高和團身緊又快還有甩手上!!
→ dkkim:我覺得可以看到影片就太好了 這樣會更一目了然!
→ dkkim:我覺得我遇到的問題是團身的速度和沒有垂直上跳的感覺
→ dkkim:以前在不好的場地練的時候會很擔心翻不過去 所以會
→ dkkim:急著翻 高度就低了 現在感覺也定了改不太回來了orz
→ vivigo:很好很好~~~寫在文章中的是共同都有差異的地方~之後可以補
→ vivigo:上影片!!
推 surgday:甲組選手翻的關鍵是在向上高度高、臀部抬得高及團身緊..
→ surgday:然後打開時間大概是上半身還沒到達垂直軸的時候..
→ surgday:ㄟ 我覺得向上的高度不知是否和彈的那一瞬間上半身與假想
→ surgday:垂直軸的角度有關..我的意思是如果在翻之前就往前傾了..
→ surgday:就很自然的往前飛了..如果上半身是挺的..那彈的時候就會往
→ surgday:上飛..
推 surgday:瓊恩很厲害歐..短短時間內就有這樣的成果^^..
→ vivigo:起跳時身體前傾我也有觀察，正在量化中!!因為我的高度是排
→ vivigo:除肌力的差異，所以起跳的身體角度可能造成高度的差異!!
推 kentim:我用自己做過實驗啦 起跳身體前傾跟垂直高度差很多~