
Originally Posted by
NACH3
With HIT - we are trying to recruit the toughest muscle fibers possible(type 2b) type 2a/b are both fast twitch muscle fibers yet recruiting type 2b is only possible by going to true positive failure and beyond... Three phases of each lift - positive - static - negative... Once true positive failure is reached, notice our negative(eccentric part of lift is stronger than our positive & static phases of a lift) so to dig deeper into those type2b muscle fibers if you've got a spotter to lift the weight... You then lower the lift as slow as possible for as long as possible until the negative part of the lift is at/and beyond failure during your working set and drops etc - this is from Marcus and his posts(I just don't speak as well LOL)! Also, type 2b fibers can grow 4x the size of type 2a fibers - hence the growth of more muscle tissue! Make more sense?!