upper arm strength...? i admit it probably takes a little muscle and that it is mentally challenging....but sitting...in a car? just like with golf...if a guy not even in shape in his 50's can do it...proabably isnt going to be to physically demanding. football takes INSANE training to even step out on the field. unless your a lineman...then you just have to be big (the refrigerator) basketball? those guys run FOREVER, sprint, jump, super good cardio and fast muscle twitch. sitting....in a car? maybe lift a little weights but come on...no cardio, you dont have to be super strong or in shape. just a little endurance and mental strength with a natural talent for wanting to travel in a circle for 5 hours...and your golden. thats why women CAN do it. watch some women step out onto a rugby field, or football field, or even basketball....not gonna happen. i love the quality crowd that enjoys nascar to. you can tell alot about the sport by its fans. " gonna git down der and git me some hawt dawgs with mustard en dem chopped pickles, some quality warm budweiser or shcmidt beer..nah we aint needin no chairs! we git the igloo and some piggly wiggly bags stuffed with buns fer them dawgs..wheeewwww go earnhardt, pass me one them there hawt pawkets elma, they got real meat in em!"