Christian Thibaudeau wrote about this rep scheme in his article "The Best Reps
Loading Schemes for Optimal Progress".
With this rep scheme you use a weight that you could have done maybe 6-7 reps with.
Do a set of 5.
Take a 10-12 sec break.
Do a set of 4.
Take a 10-12 sec break.Do a set of 3.
Take a 10-12 sec break.
Do a set of 2.
Take a 10-12 sec break.
Do a set of 1.
You have now completed 15 reps with a very challenging weight. Thibaudeau says that you should do no more than 3 sets of this, and that if you can you need to put forth more effort.
I have tried this in my own training and have to say that it really feels great and you get a good pump. And as Pavel Tsatsouline says: If you get a pump with heavy weights you shall grow.
