拋開鞭甩式擊球的思考迴圈 - 桌球

By Regina
at 2016-01-23T15:28
at 2016-01-23T15:28
Table of Contents
這個問題我思考好一陣子,
總覺得乒乓球用鞭甩是一件很奇怪的事情,
之前說不上來哪裡怪,
但經過這幾次討論我又思考了一下,
我想到了一個我比較喜歡的看法和說法,
大家參考看看
我覺得可以試著跳開思考,而不是只糾結是否要鞭甩,
比較多人在談論運動的時候會講到鞭甩/鞭打式發力,
可是實際上我看很多運動,我總感覺沒那麼像鞭子。
我覺得不像鞭甩,那我覺得像什麼呢?
『拉弓』
舉凡高爾夫開球、羽球或排球扣殺、網球發球、棒球揮棒....etc.
要做到力量最大時,都會把身體往反方向拉開或轉開。
而乒乓球叫「引拍」。
就好像把弓箭拉到最滿,
然後人在發力的時候就類似於「弓的回彈」。
人的各部位肌肉施力作用,類似於弓回彈的張力作用。
這和鞭甩有什麼不一樣?
鞭甩的力量是來自於柄的源頭施力,然後傳遞,
除此之外鞭子其他部分並沒有額外施力作用,鞭只是一個傳遞的媒介。
但是弓在回彈的時候是整隻弓都有張力作用,
握把、中段、弓的尾端,都受張力的影響而作用。
鞭甩主要在於波的'依序'傳遞,
拉弓主要在於整支弓的張力'同時'作用。
拉弓張力是整體作用,
就好像全身上下都有肌肉,
然而實際運動時,
全身的肌肉都可以發生作用,都提供適當的力量。
像弓的回彈一樣。
而不是像鞭甩,單靠鞭柄慢慢傳遞力量到鞭尾,
弓在握把位置上也會有力量逐漸傳遞到尾端,
而且這支弓的剛性越強,張力就越強,傳遞速度也越快。
當你在運動時,
想的是鞭甩、還是想的是拉弓,那效果就不一樣了。
當你想的是鞭甩的時候,
很容易會只用上根部、基部位置的肌肉力量,
很容易忽略較後段的肌肉力量。
當你想的是『弓的回彈』,
就會自然運用到全身各個細節。
再來,
物質的剛性越強則作用力傳遞得越快,
但是人體和鞭子和弓是不一樣的物體,
弓的材質比較是一致的,
人體有骨骼、有筋腱、有肌肉、有皮膚,
肌肉的鬆緊軟硬,是依據人的意志去掌控的,
你放鬆一點肌肉就軟,肌肉使力就變硬、剛性變強。
假設中段或後段的肌肉,
處於太鬆軟的狀態、或者處於太過於不穩定的狀態,
那根部的力量要傳導到尾端的過程當中,
可能會在到尾端之前被抵消、或者傳遞到的時間點錯過了最佳時機。
所以打乒乓球在揮拍擊球的時候,
中段和尾端要先有一定程度的剛性,(當然還有穩定性)
根部作用力傳遞過來得才會夠快、夠及時,
而且比較不會不適當地被抵消。
如果中段和尾端的剛性過於不足,
也就是手臂或哪個部位太過於鬆散,
那力量就無法有效率又準確地傳遞上來,
也就是你的尾端和中段要先提前作用保持剛性,
但又不能太硬,不能太緊,不能到最滿,
簡單講就是有『韌性』。
引拍完之後,要揮拍,
尾端先啟動產生足夠剛性和穩定性,讓中段力量可以傳導過來,
中段力量跟著啟動產生足夠剛性和穩定性,讓根部力量可以傳導上來,
然後在要擊到球的瞬間,
各部位幾乎同時發力施力,
因為尾端和中段的剛性夠,
所以根部傳導上來的力量非常即時,不會有過多延遲,
穩定性夠,所以傳遞的過程中不會有抵銷或分散,
而且尾端和中段都各自有力量給予加成,
和傳遞上來的力量同時作用。
這就是我以前說的『手帶身體』,然後全身同時發力。
手先啟動,然後擊球瞬間全身同時發力。
雖然弓回彈的過程,是由緊到鬆,
肌肉發力的過程是由鬆到緊。
但是用這樣的意象來思考,我覺得比鞭甩更貼近實際上會有效率的狀況。
而且弓的回彈沒有方向性的問題,不受正反手結構的影響。
http://i.imgur.com/B5rJuax.jpg
我比較喜歡這種說法。
--
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