This was given to a guitar student to help them with playing sextuplet runs (aka: 16th note triplet runs). This exercise has you playing short bursts, but also works your endurance because you are asked to play the same thing 4 times in a row.
The tab in the video has triplet groupings shown, but the tab you can see in this blog entry and download have sextuplet groupings instead so you can see the beats more easily.
Here is the Guitar Pro 6 tab for this lesson:
HEY!!! Does Your Rhythm SUCK!?