https://community.usms.org/swimming/f/general/11530/fast-twitch-musclesI heard from my friend that if i am aiming for 100m , 200m freestyle, i should do heavy weight, low reps in the gym to activate those fast twitch muscle fibers. Is that true? He told me heavy weight, low reps = fast twitch. Low weight, high reps = slowen-USTelligent Community 12https://community.usms.org/thread/188018?ContentTypeID=1Tue, 24 Sep 2013 14:38:00 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:8aebce1c-39c6-4308-a558-b72ddd190b87Former Memberdid your friend also talk to you about transition? from white to pink, pink to red or red to pink or pink to white? and yes i know a little about this....i can show you the scar from a muscle biopsy that was done to determine muscle fiber composition. (imagine a needle the size of a pencil that the doc has to stand up on and push in with both hands into your thigh). no he did not, but seriously the size of a pencil with both hands?!??<div style="clear:both;"></div>https://community.usms.org/thread/188070?ContentTypeID=1Tue, 24 Sep 2013 12:11:54 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:877b6369-edde-4bfb-83a8-476bf8d8361fsunruhno he did not, but seriously the size of a pencil with both hands?!?? totally serious about that. 24 of us had a ruined leg for about 3 days. mark was super po&#39;d about that. when they (ui/ioc) asked a year later if they could do our shoulders....the answer was not just NO but HE77 NO!!!<div style="clear:both;"></div>https://community.usms.org/thread/188010?ContentTypeID=1Tue, 24 Sep 2013 08:43:15 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:9140d4b8-0be3-4e9d-9c76-9cc9881e6d9dsunruhdid your friend also talk to you about transition? from white to pink, pink to red or red to pink or pink to white? and yes i know a little about this....i can show you the scar from a muscle biopsy that was done to determine muscle fiber composition. (imagine a needle the size of a pencil that the doc has to stand up on and push in with both hands into your thigh).<div style="clear:both;"></div>https://community.usms.org/thread/187993?ContentTypeID=1Tue, 24 Sep 2013 05:37:19 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:f1eeb43e-624e-4cd5-95cd-9e4b0cf68874__steve__Y Move weight fast as possible even if it&#39;s slow<div style="clear:both;"></div>