re: LSU in the CrossFit Games

I know crossfit makes many roll their eyes. I started two weeks ago. Im 40 yrs old, and have been sedentary a while. I used to be a marathon runner a decade+ ago, but now im just badly out of shape. Ive never messed around with weights much ever. I joined not because i have illusions of being well built or athletic, but rather to improve my respiratory rate, pulse, vO2, stroke volume, muscle tone/metabolic rate, blood pressure, etc before i find myself facing dangerous health problems. im woefully behind most people and thats fine, but there are also fair share who are in similar position as me. Whereas i used to only occassionally jog (slowly) at lsu lakes, im now doing a full spectrum of different exercises i personally would never have been able to do without this sort of structured environment. Crossfit isnt only obnoxious cult types that discuss it facebook and what not.