Sf 5 x 5 question

[TomoUK]

Im sure this is a stupid question but what is the theory behind the set of 8 on the friday that follows the increased weight set of 3?

 

[Madcow2]

Can be several uses. After the heavy triple the CNS is primed so to speak and performance over the lighter weight should be fairly strong. You get additional workload, some slightly different stimulus both above and below the coming Monday target set of 5 (think about the spectrum from strength to muscular endurance). Maybe think of it as setting you up optimally for the Monday set of 5 which falls pretty much in the middle of 3 and 8. Or maybe he did it to just look cool and placate all the bodybuilders who felt that anything less than 8 reps was pure strength irregardless of total volume and intensity level used .