hoàng sơn (hoangsonpro)

Race #1

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Official speed 70.94 wpm (32.99 seconds elapsed during race)
Race Start April 17, 2010 3:52:49am UTC
Race Finish April 17, 2010 3:53:22am UTC
Outcome Win (1 of 2)
Points 0.00
Text #409 (Length: 195 characters)

There are two kinds of fibers in our muscles, red and white. Red muscle fibers enable us to maintain long-term, low stress activity. White muscle fibers are specialized for fast, rapid movements.