I am not objecting to the "cheating" claim. I disregarded it immediately and only considered this as an exercise experiment. My point is that single studies wit

I am not objecting to the "cheating" claim. I disregarded it immediately and only considered this as an exercise experiment. My point is that single studies without control groups are not going to tell you much. Are their conclusions reasonable? Of course. Did we learn much from the study above what we already knew about moderate exercise? Not really.