I am working on my NASM(National Academy of Sports Medicine) Cert. and am currently a personal trainer at World Gym. The above listed program sounds very similar in concept and principle to the type of workouts that I put my clients through.
Most clients are similar in that they have the goal of losing fat and gaining muscle. Their bodies are also very deconditioned and are often not ready to take on the balance and stability needed to perform traditional lifts with moderate to heavy weight. A program such as the above is designed to re-initiate/fine tune motor control through the use of unstable environments such as stability balls/dyna-discs etc, as well as keeping your heart rate up. It has also been said that if you perform an exercise in an unstable environment such as a Med/stability ball push up, you will be far stronger in the regular exercise(regular push-up) because your body will not have to stablilize itself. Which seems to make sense.
Also, I agree with you, workouts such as the above are tougher than you would think. Not ideal for adding size/mass like most of the BB on this site want...but can be fairly useful(IMO so far, havent been training for very long) for many of the clients I see and could possibly be useful for sport specific training. NASM has termed this type of training as "functional/stabilization training".
The strange thing about this type of training for me is that when I played college sports, our Strength and Conditioning/Sports Med Teams used similar approaches for injury rehabilitation. Now, I am required to use such principles are a primary workout for my clients.
Hopefully hdogg will comment! He has tons of knowledge on the effectiveness/uneffectiveness of this type of training and I have talked with him about it before. He will undoubtedly prove everything I have said above to be wrong. Hi hdogg!!
