I have been incredibly out of shape and overweight most of my life. In the last year I've managed to lose a lot of weight and I started weight training about 8~

I have been incredibly out of shape and overweight most of my life. In the last year I've managed to lose a lot of weight and I started weight training about 8~ months ago. I saw my VO2 go from 33 to 39 (which is still quite low) at a very steady rate and then all of a sudden just plateau at 39. Was absolutely annoying because I thought I had only a month or two left before I hit that 50%/Absolute Average point for my age :( Sadly (for me), I think this means I actually have to start doing cardio.