kevin (pkj5643)

Race #208

View Pit Stop page for race #208 by pkj5643Ghost race

View profile for kevin (pkj5643)

Official speed 47.01 wpm (86.53 seconds elapsed during race)
Race Start March 16, 2011 1:33:49pm UTC
Race Finish March 16, 2011 1:35:16pm UTC
Outcome Win (1 of 5)
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.