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Check this out, this is interesting. I think Arnold was right, it's the pump! The pump!!! :bananaroc :bananaroc
Lactic acid is a by product of the G-L-A System (6). This is the energy system that is used most heavily during 30-90 seconds of work. Power lifting type movements are dependent on the creatine phosphate system which is used for extremely low rep, high percentage (of your maximum strength) sets. The PC system does not result in lactic acid production. This is just another reason to use supersets, strips, and other techniques that produce this effect.
Sets that use the Glycogen-Lactic Acid system (30-90 seconds, shocking methods or 6-15 reps) prime the pump (create extreme pumps). There are many benefits to this in regards to hypertrophy. One is to super hydrate your myofibrils (9)(see anatomy of a muscle fiber for detailed explanation of myofibrils)! A pump is caused by the collapsing of veins. As you know from the anatomy of a muscle, veins take blood out and arteries bring blood to the muscles. Even though the veins begin to fail, the arteries continue to bring blood to the muscles! This build up of fluid causes a flow of blood to go back into the muscle which in turn causes the pump! |