Back in 1947 Henry Atkins, who was the editor of Body Culture Magazine, first documented a very effective workout training technique that he referred to as the "Multi-Poundage System".
These days we typically refer to this training technique as "Drop Sets"...
Drop Sets are an advanced bodybuilding method where you perform a set
of an exercise for as many reps as you can, then immediately lighten the weight and perform another set for as many reps as possible with no rest in between sets. This process can be repeated several times in a row depending on how hard you want to push yourself.
This is an effective way to train to muscular failure and beyond while recruiting the maximum number of muscle fibers. Generally when you perform a heavy low rep set you'll recruit mostly fast twitch muscle fibers. And when you perform a light high rep set you'll recruit mostly slow twitch muscle fibers.
However, with Drop Sets you'll literally be able to combine the best of both worlds within the same set for some serious muscle stimulation.
Each time you drop the weight and continue to perform more reps, you'll recruit more muscle fibers, increase blood flow to your targeted muscle groups, and give yourself an intense mind blowing muscle pump!