Rainie (nghoiying04)

Race #5

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Official speed 67.10 wpm (57.41 seconds elapsed during race)
Race Start May 14, 2015 2:49:39pm UTC
Race Finish May 14, 2015 2:50:37pm UTC
Outcome Win (1 of 3)
Accuracy 85.0%
Points 0.00
Text #1080408 (Length: 321 characters)

有兩種纖維在我們的肌肉,紅色和白色。當一個運動員的長途列車運行,他或她構建更多的紅肌纖維比白肌纖維在他的小腿肌肉。阿短跑選手有更多的白色肌肉。如果你再培訓馬拉松運動員是一個短跑選手,大部分肌肉纖維將轉換為白色肌肉。