Abs

A fair while back - scientists began looking at dead humans (ie. cadavers) to examine the functioning of the body.
1. One 'discovery' was that the abdominal muscles 'appeared' to work and flex the spine - ie. a slight rounding of the spine
a.) Crunch exercise became the 'de-rigeur' of ab-training

2. 'Core' training then started to take-over from "Crunch" abdominal training with the revelation that actually the Abs main function was to STABILIZE the spine (otherwise you couldn't maintain a vertical position and would flop!)
a.) This became intertwined with the next revelation, that the muscles in your lower back were 'intertwined' in function with your Abs (and hence should be worked in concert aswell!)

3. This is where the "Core training" phenomena took off from, and derives all its programming from trying to maintain a "Stable" strong CORE (or midsection)

4. Pineapple is OPTIMUM CORE training
a.) Not only does every muscle in your mid-section have to be activated (ie. forced to try and STABILIZE) when you are on the Pineapple - which is what every style of traditional 'core training' tries and do (albeit not as successfully as the Pineapple, as the Pineapple forces more activation through the sub-conscious reflexes that are forced)
b.) The Pineapple also works through your TRUE CORE (your spinal column) - as the Pineapple supercharges your entire Nervous System aswell, boosting your neurological function

5. that's why we call Pineapple - CORE FOUNDATION FITNESS
a.) it is the start point of any level of fitness results you want to achieve

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