bicker said:Barring medical counter-indications, one mile is a good place to start. Most folks can work up to that in a very short period of time, generally doing the mile in 20-30 minutes. It is important to note that both distance and intensity play a role: A lot of folks assume that they get the same cardiovascular benefits from walking a mile in 40 minutes that they get from walking a mile in 20 minutes, and unfortunately it just isn't the case. (Of course, these number vary for each individual, but most folks are in these ranges.)
A good goal after that is three miles. As others have suggested, build up to it, steadily but not all-at-once. Many folks can work up to that within just a few weeks; other take more than a month. While 20 minutes of physical activity gains the first level of significant cardiovascular benefits, an hour garners an even higher level of benefits.
A wonderful older woman lives across the street from me. I believe she's celebrating her 70th birthday soon, and does the three mile loop around our neighborhood, every single day, in less than 45 minutes. She also participated in the MA Breast Cancer Walk: 60 miles in three days. Utterly impressive; and you know she's going to live so much longer for it.![]()

What is sure is that (1) what that takes differs for different people, and (2) folks, themselves, are often bad judges of what's the right pace for themselves, more often than not going at too leisurely a pace, but remarkably some folks push themselves too hard. What I used to figure it out was a heart-rate monitor, and sought to keep myself in the prescribed cardiovascular range for my age.Question to Bicker. I understand what you are saying about a mile in 20 minutes is better than a mile in 40 but is there a point where you can say, while still being at a walking pace, that you are having as good a cardiac effect as you can while still being at a walking pace?
and do our walks! 
Brisk walking ("power walking" - swing those arms!) is great cardio, if you're looking for cardio stuff. You just don't want to get out there and push immediately. We don't want you passing out on the side of the road!C.Ann said:-----------------------------------
I have the same concerns about jogging - and the only road I could jog on where I'll be for the next 7 or 8 months is definitely not safe for jogging..
Seems I also remember reading something recently that stated that brisk walking (LOL - if I get to that point) is just as good for your health (cardio and otherwise) as jogging - minus the potential for knee, foot and back problems..
Tigger&Belle said:Feel free to ask my pedometer geek questions!![]()

C.Ann said:-------------------------------
Okay - "pedometer geek" -- what does 10,000 steps a day equate to in terms of "miles"?
I was thinking I would like to get a pedometer.. I'm going to check that one out.. It would be nice to know how far I'm walking (or not - LOL)..
The Mystery Machine said:OK...you asked!![]()
I have bought a few pedometers and they just don't count correctly.
Which model do you have and how do you know it is accurate???