Here is the original "Density Training" post by Ethan Reeve from the dragondoor.com forum:

For those of you who do not know of Ethan Reeve - he is one of the elite strength coaches in the country - period. He is has a unique gift for blending PL, OL, KB and many other approaches into an effective training program.

To all concerned,

This may be a little different training than many are accustomed to:
I have had many types of athletes have great success increase their strength
as well as strength or power endurance doing what I term "density training"
For instance, let's say your goal for the 2 pood kettlebell clean-n-press is to do
12 reps in a row. First, you want to use double the voume of your goal which is
24 reps. You will only do this workout twice per week. You will start out
doing 12 sets of 2 reps in 12 mins. Meaning you start a new set every 60 secs.
At first your rest periods will be about 50-55 secs. After this becomes easy to
you move to 8 sets of 3 reps in 8 mins. When this becomes easy move to 6 sets
of 4 reps in 6 mins. When this becomes easy move to 5 sets of 5 reps in
5 mins. You will notice by now your rest periods become shorter as your reps
increase. After this becomes easy move to 4 sets of 6 reps in 4 mins. When this
has become easy for you I can promise that you will be able to do the 12 reps
goal on the clean-n-press. Using this formula I have had many, many athletes
perform between 30-45 reps on chinups in a row. I had one wrestler do 600 chinups
in 63 mins., he was a 3-time state champion.While I have had many other
athletes do between 400-500 chinups in 90-120 mins. Our goal at UT Chatt.
was to have 90+% of our wrestlers do 10 sets of 10 reps on chinups in 10 mins.
We started with 20 sets of 5 in 20 mins. then working to sixes to 7's to 8's
to 9's until we reached 10 sets of 10 in 10 mins. This took a period of 3
months to reach.
However, we then did the 100 reps each day throughout the season along with
our rope climbs, and 3x's per week power cleans, front squats, rdls,
standing presses, bent rows,dips, etc.

Let's say your goal is to do 2 pood kettlebell snatches for 40+40. The total
volume will be 80+80. Do this only twice per week. First you might do 40
sets of 2+2 in 40 mins.
When this becomes easy move to 26 sets of 3+3. Then move to 20 sets of
4+4 in 20 mins. Notice that at first your workout might only be snatches.
However, as you spend less time on the snactches you will be able to put
more lifts into your program.Then move into 16 sets of 5+5. Then 13 sets of
6+6 in 13 mins. After this becomes easy do 11 sets of 7+7, resting one minute
after completion of each set. Then work on 10 sets of 8+8, resting one mins.
after completion of each set. Once you have reached the 10's decrease the
volume to the goal volume because now you are going for pure quality. So,
you will do 4 sets of 10+10 with one mins. break after completion of set.
Then move 4 sets of 11+11. Then to 3 sets of 12+12. Then to 3 sets of 13+13.
Once you have reached 2 sets of 20+20 WITH ONE MINS. BREAK AFTER COMPLETION OF SET
you will be very clos to the 40+40 goal. My caution to you is that you will want to do
this only twice per week. It can be very taxing. Density training is basically
squeezing alot of volume into a short period of time to make it more quality.

If you have any questions, please reply!
In Strength,
Ethan Reeve


I can verify that is approach works - well.