otter wrote:
muscle fiber theory in humans is junk science wrote:
You are stating muscle fiber theories as if they are proven facts. Only elite athletes at universities or professional athletes have muscle fiber biopsies. No sane medical doctor has ever done muscle biopsies on infants in order to test twitch ratio. The issue with changing a 100m/400m athlete to distance runner is an under developed cardio system. Also, there is a sprinter's mentality. A sprinter's mentality rarely allows an athlete to psychologically adapt to racing longer than 1500m well. I do not know the identity of this sprinter female athlete. It makes no sense that Coach JS is planning on skipping past 800m straight to road racing with a 100m/400m athlete. The issue is not muscle fibers. The issue is sport psychology.
Oh, you're right. This is all in their head. Sport psychology is the limiting factor. Thank you for enlightening me. Years of research down the drain. I will start over again.
Besides your smart aleck response, do you have muscle biopsy data on infants you want to share? It's interesting how swimmers do not get bogged down with muscle fiber theory discussions. All high school swimmers, 50 yard splash and dash to 500 yard freestyle largely train the same. Body builds for athletes differ. I'm relatively close in age to Bo Jackson & Hershel Walker. The reason why I would have been able to kick their asses in 600m run and event longer is not due to my muscle fibers and not due to their muscle fibers. They were too darn large to even dare to think about beating me in 600m. Muscle fibers adapt to the way they are used. The reason why video game playing coach potatoes cannot suddenly become sub-11 100m sprinters at age 30 is due to strength to weight ratio and neuromuscular coordination sprinters have developed since they were infants. Infants. That gets back to you and your twitch ratio science. Again, when you start giving us twitch ratio data on infants, you will be on to something. Oh. What twitch ratio were Miruts Yifter and Thomas Wessinghage in their prime? Both men were sub-49 400m men and sub-13:15 5000m men. I bet you'll say 50/50. How convenient. Muscles adapt to the way they are or not trained.