IGF-1 LR3.....................................................................
at very least but without this ped not possible
chinese sun yang one of first to use in swimming ........
breakes 1500m record of a epo doped aussie
makes sense as where most of stuff made
and a legend like liu xiang in china
who was absolutely the first to benefit heavily from it in athletics,,,,
in the event that most suited to it with does fast legs
then comes along katie ledecky and breaks records the exact same way
but to larger extent as mentioned with womens athletics 10000m ,
women s reocrds softer as more enhancement to be had
from less develeoped female nervous system ......................
note this is the dope but there are new training methods in 1500m
that helping also
and mens record could go today ,as
IGF-1 use no longer few but the many in swimming
and have a fast italian here.