Fiber type alteration to potentiate hypertrophy

[aomeara21]

I have a “bro” theory and I’m curious if you guys have had any education or anecdotal evidence to confirm or deny this

My hypothesis is that have a powerlifting focused (maximal power and or strength base) at either the beginning of a persons lifting career or following a break will prepare the muscles to grow in a proceeding program with more hypertrophy focused rep ranges

My thought process behind this is that in addition to the benefits in stability adapted from heavy % loads the lifters intermediate fibers will transition to fast twitch predominant muscle bellies based on the theory that intermediate fiber will transition to support the stimulus provided

In case the highlighting makes it too hard to read here is quotations from “scientific principles of strength” by israetel, chad Weasley smith and James Hoffman
Which describe the process muscle fiber adaptation takes place as it relates to specificity ( in this case it’s adaptations to converging and opposing stimuli)

“Fast twitch fibers
produce force rapidly when activated by the nervous system, but more
importantly for powerlifting, they produce more force per cross-sectional
area. Not only this, they are much bigger than slower twitch fibers to
begin with, and also respond to heavy training by growing faster and
more in total than slower-twitch fibers. Thus, having your muscles be
predominantly fast twitch (or rather as fast twitch as your genetics will
allow) is a very good thing for both acute powerlifting performance
(picking up heavy weights NOW) and for later improvements in
performance (getting bigger and stronger with time).”

“The fiber types themselves
don’t change through training, but the intermediate fibers (ones of
an even mix of fast and slow twitch properties) start to behave more
like slow twitch fibers and less like fast twitch Fibers. This change in
characteristics seems largely (likely wholly) reversible, but both the
initial change to slow twitch and reversion to faster twitch can take on
the order of months to occur. In a meaningful sense, endurance training
will reduce the pool of fast-acting fibers in at any one point and over
time, and is thus largely harmful to powerlifting results.”

Thank you if You get around to reading it all. I don’t blame u if you don’t have the time to read this book of a post.

Ps. Sorry if there’s any misused terminology I’m 18 and don’t have a college degree in this field which is why I’m coming to you😂

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[Joe]

[aomeara21]

Awesome I appreciate you diving into it with me. Thats exactly what I was looking for and you expressed my other train of thought being using heavy weight training close to failure would provide enough of a stimulus to promote intermediate fiber adaptations anyway.

[Author]

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