I disagree. I believe that if you have enough body awareness to know that what you are doing is a physical act, that you choose to go deeper with that act... physically. When lifting something, one might just use their arms, but if they know that it will be better for them to lift that object with their entire core, they are in fact using more of their body and creating more of a workout. All a workout is, is body awareness. Knowing what to use in ones body to become more efficient. Simply going deeper with one move. Again, using the whole body to do something as oppose to straining one part (like an arm, or their back). I believe they were more fit, but not because of what they were told, but because of their physical body awareness.