Well the average American takes approximately 5,000 steps a day. This is a big reason America is becoming obest. So if you take 20,000 steps a day you will start to loose weight ( As long as you watch your diet). It doesl not matter what your heart rate is, however the higher your heart rate the more calories you will burn. Now im not sure when you say sporadically if you mean during the day at the office walking around to get a paper and sit back down periodically, or if you mean walking for 15-20 min. at a time. But a key thing to remember calories in should equal calories out. Good luck
If you want to be burning fat, you should be doing low intensity for long periods of time. So instead of running, do light jogging. Steps is a hard way to measure, because everyone s steps are different. But as long as you stick to it and keep a healthy diet, you should be fine.
