*為什麼滑不快?
滑不快的原因很多, 有時是鞋子本身設計構造問題, 有時是輪子過久老化硬化, 有時輪子抓地不良,
有時是輪子磨損, 有時是本身練習不足, 有時是施力技巧不對, 有時是培林問題.........., 如果鞋子非
80mm輪子 , 而容許裝80mm輪子, 可買80mm輪子裝上, 速度應該可以增加, 培林級數問題往往不是
絕對關鍵, 往往只是滑不快可能原因之一................, 嘗試曲棍球鞋(Hi-Lo設計)或競速鞋 , 力量能確實
的傳遞, 不會被舒適的海棉抵消力量,可以溜得快很多, 但是腳力要夠,且鞋子構造較硬,要有一段
適應期.(曲棍球鞋就是皮的鞋身，沒有內套，可以緊密的包裏住腳，力量能確實的傳遞，而輪刀
曲棍球鞋的底座也多是鋁合金的, 以 Bauer，CCM，Mission 等較佳), 大部分休閒鞋以舒適美觀為
設計導向並非以速度為設計導向, 自然滑不快, 嘗試角標鞋,曲棍球鞋, 競速鞋,會有很大不同感受, 但是
"直排輪鞋很便宜"的認知恐怕要修正.
容許裝82mm輪子
曲棍球鞋短距離加速度快, 但是直線穩定度遠不及競速鞋, 競速鞋不便宜, 一般人穿上競速鞋於直線柏油路上達到時速
15~20km並不難(競速鞋無後煞車裝置你必須學會進階煞車法如T型煞(skater's in-line 的T型煞影片)), 時速20km實在不慢
(成人的步行走速度時速為4公里快步行走速度時速為8公里)國內選手級時速35km/hr以上 , 如果世界杯級選手時速更達
40km/hr以上,例如: 2002世界盃42 km直排輪馬拉松(marathon)排名前70名均於1小時9分鐘內完成, 例如:2005世界盃競速國手選
拔300m 駱威霖 26"27唐立哲 26"44潘玟志 26"60, 第26屆中正盃全國溜冰錦標賽國小男子組1000m北市大湖宋
青陽 1' 48" 50 第一名,社會男子組 1000m高雄蘇郡鋒1' 43"69 第一名,93年高雄市運動會三百公尺計時賽: 國小低年級男子組
陽明國小 翁子洋 38"37 第一名, 國中男子組 陽明國中 李志豪 28"51 第一名. ..........台灣有約NT6000入門休閒競速鞋可以選擇,
以下是80mm ,84mm, 90mm, 100mm輪子與Mogema不同底座組合與速度, 力量, 穩定度, 抓地力, 加速性, 極速.............之關連表:
不同底座與鞋高度, 不同底座長度, 不同輪子直徑, 輪子大小及鞋身配置, 不同底座材質, 擠壓成型,設計外觀,cnc切割精密度.........均有不同結果, 以下文章可參考:
Frame height -> If you are looking for stability in order to reduce fatigue in your legs, you should choose a frame with low decks. The lower deck provides more feel and control over the wheels, which become closer to the foot. Less effort is required to make angles. You may have a little less power with a lower deck (therefore shorter effective pushing leg), but efficiency and control are both improved. Realize that a low deck can cause the boot to scratch the road surface in a fast corner.
Frame length -> If your looking for more power in your push or you use longer, more powerful strokes you should choose a longer frame. A longer frame allows the stronger skater to experience less deviation of the skate from their direction of travel during a push, and provides a better platform to push off of for the larger, stronger athlete for whom stability and sureness during transfer of power to the ground is most important.
Wheel diameter -> If you want speed, larger wheel diameters provide access to higher top-end speeds, and added rolling momentum. You can maintain a high speed easier. Smaller wheels, with their mass acting closer to the axle, are easier to accelerate though. A number of factors, acting together, affect the rolling resistance and contact area offered by a wheel on the road – and therefore affect roll and grip: urethane, profile, durometer (hardness), diameter and number of wheels. Aside from the wheel design and urethane compound used, the number of wheels and sum circumference of all wheels on a skate is a good indication of the available top-end speed of the setup.
Wheels setup -> If you want grip, you should consider a 5-wheel setup. A 5-wheel skate offers you: potential grip, skate length, less deviation of the skate during hard pushes. A 4-wheel skate however, has a short wheelbase, better maneuverability, is potentially lighter and offers the ability to skate with higher cadence particularly when accelerating. The particular new Hi-Lo setups – 100, 84, 100, 100, for example, allow 165mm mount boots to use 100mm wheels, and provide the low deck height and control of the 84mm/165mm mount skate with the short wheelbase and large diameter wheels of the 4-wheel, 100mm skates.
Material and Extrusion profile -> Extrusion profiles largely determine the extent and type of deformation that a frame is subject to under power, as all frames deform momentarily to some degree when the athlete pushes hard. The control of that deformation determines the ‘feel’ of the frame to skate on, so affects stiffness, flexibility and steering. The profile also affects the stability of a frame, particularly at the boot mount/frame platform connection.
CNC profile -> The CNC profile, or machining of a frame, largely determines the frame’s appearance, weight, and further affects the frames stiffness or flexibility. A frame with a lot of cutouts, or a large quantity of material milled away, can become quite light, but can also behave quite differently under power and the frame material more susceptible to fatigue and breakage.
by Michael Byrne & Diederik Hol
長推刃...........................................................................................................................................................................>
發信人: GIGIZAZA (無聊男子) 看板: skating
日期: Tue Jul 13 17:14:16 1999
標題: Re: 請問直線加速?????
==> trs (不經意的想著妳) 的文章中提到:
>==> StarBlue (蒙面俠) 的文章中提到:
>> 我已經學會剪冰轉彎加速了,請問直線加速的" 長推刃 " 如何使用?
> 膝蓋蹲低......向外推刃......
> 這個問題真的不知道從何說起.............
膝蓋蹲低 彎成90度 身體微微向前 推刃要向你的肩膀外側推出
推出後你的腿必須是伸直的
剛開始要慢慢練習 每個推刃都要推的確實 一步一步慢慢練習
等練習一段時間之後 增加推刃的頻率 你就可以感受到加速的效果了
由淺入深慢慢學習 得到的效果才會好
同時長推刃也是在高速時 維持速度的唯一方法
加油吧！
甩手.........................................................................................................................................>發信人： Che (新壞好男人)
甩手：甩手的目的是協助帶腳步，幫助加速，與跑步往前後帶的方式不同，溜冰是往後偏
外，與腳的方向對稱。
達一定程度時再用溜的；可以蟹步輔助練習。
made by ㄚ彪
*如何溜的比較輕鬆自然?
正確的溜冰方式: ........................................................可以參考skater's in-line的影片 : 正確推刃
重心轉移在溜直排輪是一個很重要的部分,重心要跟著左右腳輪流交換,是以壓內刃推腳施力
(由前視---底座腳形如/ \ ), 以外刃作滑行(底座腳形 \ / ). (直直的| |稱為平刃),如果只會二腳都壓內刃溜
必定溜的很累.前進時腳呈外八字,------>若右腳在前時, 右腳稍稍稍壓外刃, 左腳則稍壓內刃, 左腳用力推
(壓內刃推腳), 在前之 右腳滑出去, 重心稍微移往右前方,左腳提起往前跨越右腳(拉長時間著地)輕輕
放下左腳 ,------->此時已換成為左腳在前,左腳稍稍稍壓外刃, 右腳則稍壓內刃, 右腳用力推(壓內刃推腳),
左腳滑出去, 重心稍微移往左前方,右腳提起往前跨越左腳 ...........兩隻腳交互訓練溜. 常見初學者犯的
毛病是滑行距離不夠長, 右腳滑出去還沒幾公分, 左腳就急速著地, 然後兩腳就這樣急速的舉起,放下,
舉起,放下,舉起,放下........., 試圖右腳著地滑行拉長時間, 左腳拉長時間不著地看看, 使單腳滑行拉長
時間, 兩隻腳交互訓練溜, 比較輕鬆自然.為了加快速度 , 前後擺手的訓練要重視, 擺手講求要自然，
切勿左右擺動，要儘量前後擺手，標準是手往前擺時儘量不要超過鼻尖, 往後擺時手臂不是彎曲的,
要儘量伸直,另外 , 在溜快的時侯,下腳要重視感覺 ,下腳著地時一樣要讓鞋子輕輕放下, 輪子順勢往
前帶 , 並不是溜快就要大力的往下踩, 這反而會產生阻力, 溜的很累.在 SkateFreak.nl 中有另一種推刃
方式Double Push之影片可參考.
壓內刃(但如果二腳同時都壓內刃溜必定溜的很累)
壓外刃作滑行(右腳)
...........|.........|.............................................................|..........|............................
inside edge :內刃
...........|.........|.............................................................|..........|............................
inside..|.........|..outside....................................inside...\.........|...outside..............outside
edge: 外刃
.edge...|.........|....edge...........--------------->........edge....\.......|.....edge................
............\____/..........................long
time........................\__/..............................
...........................................................................................................................
.......new.wheel...........................................................worn.wheel..................
...........................................................................................................................
由前視, 左腳
http://www.nettracing.com/step1.htm中有另一種推刃
方式Double Push之影片可參考 or http://www.nettracing.com/step1.htm 很詳細有double Push之影片可參考
from SkateFreak.nl
/ DoublePush.com - De Double Push 另一種推刃方式 Double Push
Double Push
From : Elements of the Chad Hedrick Double Push c. P. J. Baum,November 2001.
Dan's
Double Push Stripped Bare, made possible by the generous support of
Alan Bragman, Lynn Durkee, Brian Arnell, Tony Johnson, Ray Pisar, James
Babkes, and Daniel R. Dugan. Eddy Matzger Workshop.
*輪子配置方式為什麼有80mm 80mm 80mm 80mm or 72mm 72mm 80mm 80mm(Hi-Lo設計) or
76mm 76mm 80mm 80mm(Hi-Lo設計) or 四個均76mm or 四個均72mm ? 等.........配置方式?
一般休閒鞋四個均76mm 較多見 , 80mm 80mm 80mm 80mm or 80mm 80mm 80mm 80mm 80mm or
84mm 84mm 84mm 84mm 84mm, 常見於競速鞋, 大直徑輪子可以增加速度, 但是靈活度差, 不適合
花式動作. 76mm 76mm 80mm 80mm ,速度增加 , 靈活度也不差. 72mm 72mm 80mm 80mm,於Mission
曲棍球鞋可見(Hi-Lo設計), 速度增加, 靈活度好, 且第一輪比第二輪微上調1mm, 可加強速度爆發力施展,
也適合花式動作, 所以, 如果你的鞋子本身有可以自由調整不同大小輪子設計(rockering),
如部份k2, salomon , roces,Baue(Salomon TR9, K2 Titanium, and Bauer Vapor 8 hockey skates)的鞋子,則可以
自己嘗試調整不同大小輪子,造成不同效果. 如果你的鞋子本身沒有可以自由調整不同大小輪子設計,
嘗試將幾乎磨損的成75mm or 74mm的76mm輪子,裝置在第一輪, 不就是74mm 76mm 76mm 76mm?可以
微增加速度爆發力和簡單花式動作施展.像Roces鞋子有rockering「調整墊」設計者, rockering差距4mm
故可以配成: 76mm 80mm 80mm 80mm or 72mm 72mm 76mm 76mm or 76mm 76mm 80mm 80mm or 76mm
76mm 76mm 80mm or 80mm 84mm 84mm 84mm .............組合極多.
Mission曲棍球鞋(Hi-Lo設計)72mm
72mm 80mm 80mm
紅\藍天使輪子改裝
SPECTER的藍天使，底座用料實在，踩刃精確，很耐操，有時候可以充當曲棍球鞋使用。這雙10號藍天使
原來輪子配置方式是80mm 80mm72mm 72mm ,我將輪子配置方式改變為如上圖的84mm 84mm76mm 76mm,
速度大增!
Hi-Lo設計
可以自由調整不同大小輪子設計(rockering)
調整墊可以調整輪子的高度
K2 的調整墊: 
*微調整輪子和路面接觸的高度?
我們可以配合各種運動所需，調整輪子和路面接觸的高度 :(以"_"帶代表輪子"O"高度)
可利用 : 1.不同直徑的輪子 or 2."調整墊" 調整和路面接觸的高度.
● 一般位置Flat ：所有的輪子都著地和路面接觸，由於重心高、傾斜角度大，可以增進推滑距離。
OOOO=_ _ _ _
● 長距離位置：和路面的接觸點只限於前後兩輪，輪子能承受的力量變小，適合長距離滑行。_ -
- _
● Degressive （BANANA of frame）：著地點只有兩輪或三輪，前後幅度縮短，利於花式動作,難度高的急轉彎。
_ _- - or _ _ _- (此例第一輪比第二輪微上調2mm)
● Banana : - _ _ -可以大大地提高直排輪的靈敏度. 硬度較高的那顆放第一顆, 花式動作比較容易做.
● Sup HI-LO or Decreasing
*我已經學直排輪1年了
我已經學直排輪1年了--------------平均2個月練一小時, 共6hr
我已經學直排輪1年了----------------平均7天練一小時, 共52hr
我已經學直排輪1年了----------------平均2天練一小時, 共182hr
一樣已經學直排輪1年誰容易學好?
*直排輪鞋很貴?
一雙直排輪NT3800, 穿5年, 每一年中平均2個月練2小時, 5年共6X2X5=60hr, 3800/60hr = 每小時 63元
一雙直排輪NT3800, 穿5年, 每一年中平均7天使用2小時, 5年共52X2X5=520hr, 3800/520hr = 每小時 7.3元
一雙直排輪NT7600, 穿5年, 每一年中平均7天使用2小時, 5年共52X2X5=520hr, 7600/520hr = 每小時 14.6元
*要如何學後溜?
先從向後踏步開始，雙腳呈倒V字形後退，練習直線向後退。慢慢練習熟了後，練習向後畫葫蘆，練習能直線的向後退畫葫
蘆，再試試看後溜繞著一個大圓轉，可以試試只用一腳畫葫蘆，慢慢練習熟了後，可以在地上放角標，練習向後做雙腳的
S型練習，練習後溜的S型，再進階成後剪冰，最後能直線的左右後剪冰。
*花式溜冰較注重單腳的變化訓練, 可以單腳壓內刃轉彎, 也可以單腳壓外刃轉彎, 溜直排輪時，
要常常練習用一隻腳滑行，讓自己的重心能完全在一隻腳上, 靈活度會增加.而競速溜冰講究
壓低姿勢, 前後擺手, 用力推腳 .
*要學花式溜冰 , 應該學直排花式溜冰 or 傳統輪四輪溜冰?
"實際上，在現今國際的正式溜冰比賽有：競速，花式，曲棍球三種項目，在競速溜冰項目的部份
直排滑輪，已經完全取代了傳統式溜冰鞋，在溜冰曲棍球項目的部份，目前在國際上是有二套
比賽制度，並可以使用直排滑輪或是傳統式溜冰鞋，參加比賽。
在花式溜冰的項目，（如：世界運動會花式溜冰項目，世界杯花式溜冰錦標賽，亞洲杯花式溜冰
錦標賽）到目前為止，世界各國的花式溜冰好手，尚無一人嘗試使用直排花式溜冰鞋，而全部使用
傳統輪四輪溜冰鞋，參加比賽。
其原因是:
1. 直排輪具有類似戰車履帶功能的優點，因此可以適合在各種路面與場地上暢行無阻，但是在轉彎
時就會變得較為吃力，尤其是單腳要小轉彎更是困難。就是因為直排輪對於較小的轉彎弧線難以
穩定的控制，所以無法完成較高難度的旋轉動作（如：Heel Spin，Broken Spin，Inverted Spin）
2. 直排輪的前後長度比傳統輪式長，當雙腳站立時，與地面的接觸面積比傳統輪式大，所以非常
容易站穩與控制，但是單腳站立時，與地面的接觸面積卻比傳統輪式小，所以很不容易站穩與控制。
然而花式溜冰必須要時常使用單腳來完成動作，如飛燕、跳躍、旋轉、連接步。尤其是當跳躍的落地
動作時，因為必需要單腳站立，輪子與地面的接觸面積較小，所以控制非常不穩定，很容易造成二圈
以上高難度跳躍動作的失誤。"
直排和冰刀還是有些不同 在跳躍的落地時比不好做 尤其在圈數高的時侯， 而且用真的直排花式鞋
來溜有時不見得會比一 般休閒鞋去改成花式鞋來得好溜!!
Speed Skate Technique
Matt Pickering (mattp@gte.net)
Here are my comments from the world of indoor speed skating...
Proper indoor technique (and basic outdoor technique as well) involves
stroking
through your heel. You should feel the force of the stroke right down
your leg
through to the base of your heel. This concentrates the stroke power through
your fourth and fifth wheels (depending on fore-aft frame alignment, it
may be
more through part of the third, all of the fourth and part of the fifth
wheel). This keeps your weight back on your heels. Doing it right, you'll
feel a majority of the force through the heel, but feel the inside edge
evenly
across the frame.
Inline arm swings move in sync with foot placement. Arms in the straightaway
should be swung straight forward and back. Ideally,
you should see the tips of
your fingers just below your nose and the arm should come back parallel
to your
body during normal stroking. While turning,
the outside arm is pulled across
your chest, forcing you into the turn while the inside arm continues
fore-and-aft like in the straights. If the speed is high, some
skaters will
only use the outside arm and drop the inside arm for balance (indoor racers
like brushing their fingers on the floor during high speed turns, like
the ice
short track skaters, but this is like putting on the brakes and can cause
the
skater to be pulled into the turn and lose their balance. Coaches discourage
this habit.).
The concentration of forces is critical in indoor. Too much weight over
the
toes and down you go. To many, it may appear like the skater is pushing
with
their toe when at the end of the stroke, but in fact they are going down
through the heel. The pushing back gives that appearance. There are skaters
that toe push, but it is another habit that needs to be broken, as it
is sloppy
technique, robs you of power and can throw you off balance. At lower speeds,
indoor racers will push straight out on the understroke and pull the leg
in
behind the crossover leg. It's a great strength building and power booster
if
done right. At high speeds, its almost all power strokes as rapidly as
possible. Outdoor power is impressive, but your eyes will water watching
some
of these indoor racers going all out. (I've clocked a couple at under
9
seconds for a 100 meter lap. That's fast!).
Because indoor racers spend so much time turning, you don't see the double
push
the way you do outdoors. What you will see if you pay close attention
and if
the timing is right, you'll see racers as they come out of one turn they'll
get
maybe one or two strokes upright. On that last stroke, they'll place their
right foot on their outside edge and roll to the inside edge as they push
out
with a power stroke as they shift their weight and lean into the next
turn and
then cross over at the end of the stroke. Done right, this is a tremendous
boost of speed going into the turn. This is as close as we get. Done right,
this is an awesome feeling rolling into the turn.
I do outdoor cross-training. We practice the double-push and work on
power
strokes to hone our indoor technique and endurance. With the exception
of the
double push, indoor and outdoor are very similar. I love long power strokes
powering uphill, arms in full swing. Images of long track speed skating
come
to mind. But it is a distant second to the precision of indoor.
Just my offering...
Matt Pickering
Team Extreme, Bealeton, VA