I've seen some advice to maintain a high heartrate while doing resistance training, and workout systems like CrossFit, Mtn Athlete etc seem to advocate keeping a high intensity during resistance sessions as well.
However, this doesn't make sense to me. I would think that being able to focus entirely on form while during weights is more beneficial than doing the workout while feeling worked. Conversely, I'd rather do separate interval sessions where I can push myself without worrying about injury and dropping weights on myself etc.
While I can see the benefit of combining high intensity during resistance workout if one is pressed for time, for people who have enough time to do separate resistance and interval sessions this seems to make more sense.
What do y'all think?