Thanks Dr. Herbener, I follow. An analogous example to my own would be if someone decided to go underwater and use an air tank to breathe rather than breathing outside. Underwater he is purposefully acting with respect to air, a scarce resource, but outside water he is not: air is just a general condition. Similarly, if I choose to use some other device (that is scarce) to stretch, I am using them as means, but if I use the boards I mentioned, then they are simply a general condition.
Thank you both for your responses!