codewars.com (learn_2_code)

Race #326

View Pit Stop page for race #326 by learn_2_codeGhost race

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Official speed 76.43 wpm (53.23 seconds elapsed during race)
Race Start September 21, 2014 4:10:20pm UTC
Race Finish September 21, 2014 4:11:13pm UTC
Outcome No win (3 of 3)
Accuracy 97.0%
Points 0.00
Text #408 (Length: 339 characters)

There are two kinds of fibers in our muscles, red and white. When an athlete trains for long distance running, he or she builds more red muscle fibers than white muscle fibers in his calf muscles. A sprinter has more white muscles. If you retrain a marathon runner to be a sprinter, most of the muscle fibers will convert to white muscles.