sparkywowo said:I have been trying to get this figured out and still don't know what is going on.
I have a good guess of my MHR (185) and AT(170). (170 is where the heavy breathing and fatigue starts in when I ramp up the effort a few bpm every couple of minutes over the course of 20 minutes. Can't get higher than 185-186, I am 40 yrs old.)
So, for increased AT, I would work out at 160-170 (95-100% of AT) a couple of times a week at 20-25 mins each time. But, I don't know what you are saying about the VO2max intervals. Is it 3,4,5... 5 min intervals (or more) at +105% of AT with what recovery etc... Can I get some more details, Thanks!
Exercise physiology is an inexact science for the most part.
I am not qualified but my understanding is that at one time it was believed the best enhancer of pushing up AT levels was to exert yourself within 5 bpm below your AT level. Then it was stated within 10 bpm.
Again V02 max enhancement is sketchy. It appears to be agreed that intervals should be 3 minutes plus with 4 minutes being the optimum.
Effort should be such that your reach V02 max at the end of the interval. Another recommendation was to ride at 95% effort throughout. I prefer to ride V02 max intervals on consistent low grade hills at high cadence.
Recovery time can be 3:1 or as low as 1:1. Here aerobic fitness is the determiner. I would start out at 3:1 and in time as your fitness improves you will be down to 1:1. The downhill return from a hill is helpful here.
Another exercise where V02 max is substantially improved is the "Tabata Protocol" (Google that). It is a vicious indoor interval where you are ensured of reaching your V02max in 4+ minutes.