Yeah, but I take a bone of contention when people start talking about hypertrophy from isometric tension. If that garbage worked, I'd just sit in a chair and flex for an hour. But if you believe it works, fine; do it. To be fair, I went back to the article, and sure enough, he's talking strength and hypertrophy.
Even a middle-of-the-road opinion will show lack of trust in these:
http://www.sportsci.com/SPORTSCI/JANUARY/pp123.htm
Even a middle-of-the-road opinion will show lack of trust in these:
http://www.sportsci.com/SPORTSCI/JANUARY/pp123.htm