The routine goes as follows:

Day 1

Squats - 3 x 4, 6, 10

Deadlifts - 3 x 4, 6, 10

Overhead Presses - 3 x 4, 6, 10

Weighted Dips - 3 x 4, 6, 10

Day 2

Rest

Day 3

Dumbbell Rows - 3 x 4, 6, 10

Decline Bench Press - 3 x 4, 6, 10

Weighted Chinups - 3 x 4, 6, 10

Leg Curls - 3 x 4, 6, 10

Day 4

Rest

Day 5

Rest

Day 6

Repeat Day 1

You may want to take two day's of rest after each workout or even just make routine a two day a week program (for example, Monday and Thursday), as it can quickly drain you of your recovery ability and energy if you are working program as hard as you should. And if you are interested in building muscle mass, you need to work program hard.

This increase in focus and intensity will help your muscle building efforts while boosting your strength.

Here are a number of exercises that are well suited to unilateral training that can help you build muscle mass -

Smith Marchine Squats

Leg Press

Leg Curls

Leg Extension

Calf Raises

Cable Crossovers

Pec Deck

Pullups or Pulldowns

Seated Cable Rows

All types of lateral raises for shoulders

Dumbbell Press

Seated overhead dumbbell extensions

Tricep Pressdown

Dumbbell Preacher Curl

Cable Curl

If you are looking for something different to help you break out of a rut and build muscle or you just want to increase intensity and productivity of your current workout, you should definitely give unilateral training a try. Give it a fair shake and you'll be pleasantly surprised by results.