I go to an organized workout class 3-4 times a week. Depending on when I go, I'll get one of two trainers who have different approaches to workouts.
Trainer One (Form Guy) pays a lot of attention to proper form. In his workouts, we recover while waiting for the slowest guy to finish before moving to the next exercise (unless the slow guy is really slow, then we move on and the slow guy skips something eventually to catch up).
Trainer Two (Speed Guy) does a lot of timed workouts with very short breaks. For example, Saturday we did 200m row, 10 burpees, 15 goblet squats, 20 ball slams, and 25 renegades (a rowing movement with dumbbells from the push up position). We had 1 minute for each set before moving on to the next set and 1 minute between each super set. We did six super sets in all. The perky ex-gymnast beside me had no problems with it, but I wasn't able to even finish a set before moving to the next exercise.
What's the purpose of these fast workouts? I don't get it. It just seems like a prescription for injury to me. Is there some advantage to fast paced workouts that I'm missing?
FWIW, I don't care whether either workout is helping my distance running. I'm 60+ and weight lifting for long term health benefits.