Double and Triple Split Training
In this method suggests that you train twice or three times a day. Sound tough, it is, and only a few competitive bodybuilders apply it to their routine. But they don't do full-body workouts; they double or triple split. They train one or two body parts per session. And they do just a few heavyweight sets to keep their workouts short but getting maximum impact.

Tri-sets Training
Tri-sets offer intense, grueling sessions and should only be attempted once you have developed significant endurance. Tri-sets means performing three full-on exercises for one muscle group in nonstop sequence. This is a hardcore muscle burner and besides adding significant paint, it can also add significant bulk.

Giant Sets Training
Giant sets offer another step up the excruciating pain/gain ladder of intensity. This technique demands that four consecutive exercises for a single muscle group be performed.

Staggered Sets Training
Staggered sets provide priority training for smaller muscle groups like your calves, forearms and traps. Advanced bodybuilders might alternate sets for these body parts into their routine while they train a major body part – slipping in a couple of sets of donkey calf raises, for example, between heavy sets of chest work.