Facebookផា្ដច់សេ្នហ៍ (kittyboy)

Race #965

View Pit Stop page for race #965 by kittyboyGhost race

View profile for Facebookផា្ដច់សេ្នហ៍ (kittyboy)

Official speed 44.60 wpm (91.21 seconds elapsed during race)
Race Start February 24, 2011 5:47:28am UTC
Race Finish February 24, 2011 5:49:00am UTC
Outcome No win (3 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.