This etude is designed to help you develop your alternate picking and strengthen both hands with correct fingering while maintaining perfect coordination.
Alternate picking is arguably one of the most used right hand techniques on the guitar amongst sweep/economy picking and strumming. This technique is especially popular in shred (fast soloing) but you can use it in any style.
In slow videos you can see correct fingering which is very important in order to play clean. You have 5 backing track in various speed. It is not important to reach the full tempo but play every note correctly. Even if you make it half speed, it is still a good exercise.
If you are not familiar with this technique I suggest reading my article about alternate picking where I included many examples with audio, tab, charts and in depth analysis of the technique.
Have fun practicing.