Authors of Power Factor Training books in 1993 received a lot of feedback from many of the tens of thousands of bodybuilders and strength athletes using the new system. They were told over and over again how people had achieved strength gains and
Authors of Power Factor Training books in 1993 received a lot of feedback from many of the tens of thousands of bodybuilders and strength athletes using the new system. They were told over and over again how people had achieved strength gains and