[identity profile] spacelem.livejournal.com 2010-06-05 11:18 am (UTC)(link)
Didn't read the exercise article (some sort of registration required), but I've read something very like it before. Scientists measured people's strength or recovery or something depending on whether or not they had warmed up first, and found that those who stretched further got less out of the exercise. This always grated when I was doing fencing, because one of the instructors seemed to think that if you weren't stretching like a yoga master, you weren't doing it right.

Having said that gentle stretching is okay, but you can get that extremely well from doing things like spider crawling around the room.