its taking about 41 minutes to go 3 milesanything you're doing if it's more than what you were doing previously - helps...
How long is it taking you to walk those 3 miles? you might want to concentrate on your speed and getting it faster... but movement is good...
take my pulse before I start and after i am donethat's a very quick pace for most people ...
Raising your heart rate is a good thing - cardio is to strengthen your heart as well as burn fat... How are you checking your heart rate.
There are a few threads around on target heart rate - reaching your target heart rate isn't a necessity for fat loss...
So since you don't know what your target heart rate is - you dont know if you're reaching it or not...I was told that Im wasting my time doing this if I do not reach my target heart rate,