Exercise is the miracle cure that, if it came in pill form, would make doctors everywhere rich. When so many of the health problems suffered by sedentary populations in affluent countries could be assuaged by simply getting up off the couch, it is hard to understand why more people don’t exercise more. As with many things that appear simple on the surface, there are a lot of factors at work that mean, that, for the time being, couch potatoes outnumber fitness freaks. One company, however, is trying its best to change that fact. The Basic-Fit chain of fitness studios espouses a philosophy that seeks to expand access to the power of fitness.