說明有講圖取自(Swimming Fastest by Ernest W Maglischo) 第三頁有說明 "Also included with the velocity graphs are hand velocity patterns , which are graphed according to the velocity of the middle finger during the underwater stroke" storage.googleapis.com/openscreenshot/9%2Fp%2FC/KYVe5_Cp9.png
I only mentioned it in my blog. L-drill You may please refer to this video for how to do it. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-l4Fy1cpPnfc.html
@@Jeff-qe5yz Sorry, 我不是很明白壓胸啟動和點頭啟動的意思。 至於蝶泳頭部動作有不同考量,最主要是呼吸,但是一顆頭約4-5公斤,大多教練認為頭上下動作不要太大,可能影響身體波動或推進, 最常見的是蝶泳雙手抓水後要划時,稍微抬頭(後頸緊)方便吸氣,但雙手出水後,頭就要入水(後頸鬆),但頭入水要不要用力,也有不同看法,The Race Club 比較特別,教的蛙蝶頭部上下動作都比較大,其它很少見,列在後面讓你參考。 MP的比較特別,其他選手大部份都是兩三次換一次氣,但MP每次都換氣,我覺得他把每個循環標準化,每次低位吸一點點,都是往前看的,脖子幾乎沒有伸縮動作,頭部位置變化很小,我相信他探索所過很多頭部動作可能性,發現每次動作一致對他比較有利,如果不吸氣,我相信他的頭部不會一直向前看,會讓脖子輕鬆點。 ◽這篇有列出一般頭部4種型態,第一種我最不推薦。 swimlikeafish.org/4-different-ways-to-butterfly-breathing-techniques ◽The Race Club 認為頭入水之後,要收緊下顎,這表示頭的上下變動很大 Head Position for a Faster Butterfly ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-EdhYWJEyojs.html For Butterfly and Breaststroke: Use Your Head theraceclub.com/aqua_note/for-butterfly-and-breaststroke-use-your-head/
@@Jeff-qe5yz 我覺得Chad le Clos是依照狀況調整節奏,接近比賽終了將整個動作循環縮短,划手提早出水,加快節奏,身體波動也隨著會小一點,當然會消耗較多力量,你可以觀察他在倫敦奧運200蝶中,前150m和後50m的動作差別。 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-LGMoYB8ORYo.html 最後可以看到Chad le Clos 手提早出水,看起來沒那麼優雅,但是的確加快了節奏,我覺得MP有點犯了2008 Cavic的錯誤,滑向終點,最後以0.05秒丟了冠軍,其實MP只要加快最後幾划,可能金牌就不會丟了,也許一路領先的領先者,看不到落後的,就照自己節奏,反而落後的可以領先者當目標。 整個賽程MP節奏都一樣,雙手外掃出水(手臂推到底出水),Chad le Clos前150m也類似,但後50m很明顯雙手就提早出水,加快節奏,看起來沒MP動作漂亮,但比賽不是選美,是選快到達的。
IMHO, It's possible if you could manage to keep your body close to the surface of the water. A lot of leasure swimmers do that. However, please note that the 2nd kick happens as the arms finish pulling and start to exit and recover. It creates propulsion and lifts the body which help the swimmers lift their head to breathe and get their arms above the water (through the recovery). If no propulsion is created by the 2nd kick, that might create some problems, but It really depends on the individual.
You might as well check these out. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-HZWmAo6FTvQ.html Butterfly with Ian Crocker & Eddie Reese ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-3sn6n4c11Qk.html Butterfly With Michael Phelps and Bob Bowman ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-PdRNl4wuJ0U.html Michael Phelps Personal Best Butterfly