Pretty much title, 17M trying to go from 7:20 to 7:05 . I know a good mile workout is 10x400 w 60s rest, could you multiply everything by 1.5 , so 10x600 w 90s rest?
Pretty much title, 17M trying to go from 7:20 to 7:05 . I know a good mile workout is 10x400 w 60s rest, could you multiply everything by 1.5 , so 10x600 w 90s rest?