Interval training is one of the greatest ways to build muscle endurance. This type of routine is one of my favorites because it gives a great workout in a minimal amount of time. It can also be used for any number of single body parts by limiting the exercises your perform to exercises that work those body parts.

How to perform this routine

Each exercise will have 5 sets in which you will go all out for 20 seconds performing a max number of reps. After 20 seconds has expired, rest for 10 seconds and then begin the next set.

You should rest only 2 minutes between exercises

For the exercises requiring weights, use an amount of weight that is challenging to perform reps for 20 seconds.

Upper Body Blast
Exercise Details
Push-ups - Regular Set 1 - 20 seconds
Set 2 - 20 seconds
Set 3 - 20 seconds
Set 4 - 20 seconds
Set 5 - 20 seconds
Pull-ups Regular Grip Set 1 - 20 seconds
Set 2 - 20 seconds
Set 3 - 20 seconds
Set 4 - 20 seconds
Set 5 - 20 seconds
Dips - Bars Set 1 - 20 seconds
Set 2 - 20 seconds
Set 3 - 20 seconds
Set 4 - 20 seconds
Set 5 - 20 seconds
Dumbbell Curls Set 1 - 20 seconds
Set 2 - 20 seconds
Set 3 - 20 seconds
Set 4 - 20 seconds
Set 5 - 20 seconds
Triceps Extensions Set 1 - 20 seconds
Set 2 - 20 seconds
Set 3 - 20 seconds
Set 4 - 20 seconds
Set 5 - 20 seconds
Dumbbell Press - Flat Set 1 - 20 seconds
Set 2 - 20 seconds
Set 3 - 20 seconds
Set 4 - 20 seconds
Set 5 - 20 seconds
Shoulder Press Set 1 - 20 seconds
Set 2 - 20 seconds
Set 3 - 20 seconds
Set 4 - 20 seconds
Set 5 - 20 seconds
Chin-ups Max Reps
Push-ups - Regular Max Reps