99Dan..thanks!..that's is a very informative post!..I'll have to print it out for my parents..they would be interested.
Mom is 71 and Dad is 74..they have a treadmill like mine..or rather I bought one identical to theirs..lol..I think they walk about 15 minutes or so a day at speed of, i think my mom said, 2.8...a speed that's comfortable while using those ski poles...they don't time it necessarily..they play gospel and country tapes..and do 5~6 songs from what I gather.
Thanks again for the doctor test info..
My posts my opinion only, make your own financial decisions.