B2L2 寫:I have more than a few things that doesn't agree with what Norman said.
However, 1) I also really want to 睇下一跳三伸縮 . :)
2), what's the "pressure" value on your foot through your whole jump movement? What "pressure" has been reduced after your retract your legs up in the air?
3) "但我可以很確定，我用我的核心技術做蹲下釋壓的方式一樣可以感覺不到反震力，缺點是蹲下後還要伸展時太花時間了，所以反應無法靈敏及速度快。所以主動收縮才是最根本的解決定方，自己收縮才能繼續加快轉動雪板的力量。"
Does it means, your "主動收縮" doesn't need to retract your legs? Otherwise, once you retracted your legs, you will need to extend it which also takes time. So what do you mean?
4) "事實上最好的C彎壓力應該是平衡的，即不增加壓力，也不減少壓力，唯有這樣才能真正達到省力技術的要求。"
Do you really thing that the best turn in this world will maintain the same pressure through different phase of the turn? I will give you another chance to think about this, and we could open another topic for it.
5) "我認為最高水準的方式，不靠外力也不需要太極說的支點"
In your exercise, if there is no 外力, how do you jump up in the air using just internal force? Please explain. Skier888 already asked and we knew/assumed what you did. Don't say that it is your secret. You know what you did.
6) "我接下來要練習的就是在碰撞產生反震力的一瞬間，就開始拉起我的雙腳就行了，做到了，自然就不會有任何反震力的感覺了"
Have you estimated how much pressure you are able to "absorb" by retracting your legs? And what're you going to do when pressure is above your limit?
7) more, but too lazy to type...
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Here is what I want to say, MH showed in the gym is an exercise to train your core and leg movement. It doesn't show how/why/what is "收縮釋壓". What showed in Norman's video, is also a movie which showed he 收縮雙腳 up in the air, it also doesn't show how/why/what is "收縮釋壓". By saying this, I disagree that "這動作是不是比Martin Heckelman的證明又更有力". Both videos don't 證明 anything.
壓力 is invisible, unless you go measure it, you aren't showing it. If you really want to show it, sit on a chair with a bathroom scale in front of you. Press down your legs and see the reading, then release your legs and tell me what's the reading. That would showing it.
Norman's jumping exercise could be used as an exercise to train the movement, however, I think what MH showed in the gym is much effective. I will tell you why later. :)
這電腦不好打字，我簡單回覆。
1．因為我知道你會把問題焦點放在跳起這一個動作，所以我才會測試自已在一次跳躍可以收縮幾次，做完整伸縮只夠做一次，做三回次我也沒拍出來自己看一下，不過跟完整的不太一樣，動作較小，但一樣有伸縮動作。我考慮考慮要不要拍，有點累，滑雪都不需要花這麼多力氣。
2．你們把我的重點放錯地方了，我之所以剪這樣一段，就是說，在我全身拉直時，剛好碰撞饅頭就開始做收腳的動作，看來我得重新剪一段動作以符合我那空中收縮的重疊位置。
3．我不是說過，我做的是全身伸縮，以腹腰為軸心，我不是放M．H的健身房收腳的影片嗎，幾乎一樣的方式，只是我再多用上了上腹肌那部份。
4．這是我一個推測，得上大雪場多滑幾天才能確定是不是，但這樣應該是個理想狀態。
5．能做到一跳三回次伸縮不算證明嗎？
6．超過時，就是會起撞起引起有點失去平衡，如膝撞胸後的失衡，在空中就要做第二次極短的伸縮動作回復基準平衡就好了。
所以我提出我可以跳一次伸縮三次，代表我確實可以不需要靠外力就能做伸縮動作了。
PS．其他人就不回覆了，自己看這篇說明就可以了。
