Douglas Robb at HealthHabits posted the other day about the Occlusion/Kaatsu training method, which is popular in Japan. While not necessarily useful to me, I found it a very interesting read.
Kaatsu Training / Occlusion Training
What Kaatsu Training Does
Kaatsu training looks like it can increase muscle hypertrophy significantly more than regular resistance training over an extremely short period of time. In fact the results of the studies show that 2 weeks of Kaatsu training increases muscle mass to a higher degree than 5 weeks of regular resistance training.