Hi Justine,A few months ago I would have agreed with you about preferring longer workouts, but I'm now on the last few weeks of a rotation which has so completely changed my body that I've had to rethink my opinions on workout length. I do 30 minutes weights almost every day. Heavy weights. So heavy that I need to lie down afterwards!!! Each day I also do 30 mins steadystate (fast walking) and 30 mins yoga. A couple of times a week I do a little bit of HiiT. The sessions are dispersed throughout the day - not in one long session. There is no dread, and I give 100% to them all.
I agree with Nathalie, though, - premixes allow you to do whatever length of workout you wish. So, yes, create long total body workouts, but keep making awesome, shorter premixes.
What type of workouts are you doing? I would be interested to see what your rotation is.
Thanks
Rhonda