"Our unique training program resulted in larger increases in muscle hypertrophy than most other strength training studies. The result in muscle thickness can be converted to cross-sectional area, which gives an increase of 17.3% (0.25% per day), an increase that is much larger than average. of 0.11% per day as reported in a large meta-analysis (Wernbom, Augustsson & Thomeé 2007) "Daniel Cortobius and Niklas Westblad
"Training at intensities as low as 20% 1 repetition maximum with moderate vascular occlusion results in muscle hypertrophy in as little as 3 weeks."
Loenneke, Jeremy Paul BS;
Pujol, Thomas Joseph EdD, CSCS
During occlusion training, the metabolic stress is achieved, but at much lower mechanical tension than would be needed if the muscle had free access to transport away slag products and "old" blood. What you also avoid by using blood flow restriction is just as much muscle damage, and this opens up some areas of use. Richard Drott
"Occlusion training could provide additional benefits to traditional strength training to improve muscular hypertrophy and muscular strength in collegiate athletes."
Farley, Richard S .; Caputo, Jennifer L.