VO2 Max - Failure (In my eyes)

Well, last night I did the VO2 at Kettlebells and my plan was to use the 12kg bell for the whole 80 sets doing 8 reps per set. I only made it about 24 sets doing 8 and then I had to drop to the 8kg bell because I was not able to catch my breath and I was getting a cramp in side that was not letting up during the rest interval.

I can't tell you how disappointed I am in my performance last night. Maybe the fact I only had a few hours of sleep had something to do with the poor performance. I am not sure but I do know I want to try again with 12kg but I am going to gut it out and do the entire 80 sets with 8 reps. I might even try at home a few times to try and get the reps done up.

I should be happy with this performance as most people can't do the VO2 one time let alone doing it 3 times like I have done now.