This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

light runs always unproductive while intervals always productive

Hello

I've been using the 945 for a while now and something must be wrong : 
each time I do a light/recovery run, my VO2max goes down and I become unproductive 
Each time I do an intervals session, my VO2max goes up again and I become productive again 

Even in the interval session I can see that, at the start while doing the warm up, condition is always around -5 to -8 then when doing the workout i'm around +2 to +8

my HR is set on auto, should I change my zones or something else ? 
I'm using a strap and not the OHR


an example here :