To lose weight--you need to work in the lower heart rate ranges---and not doing endurance. In your lower ranges, you use fat for energy--at the higher ranges--you use glycogen. This is why you carb load for distance running--b/c to sustain that activity for that amount of time--you need glycogen and that is obtained from carbs. This is why some people who get into endurance running, don't necessarily lose weight. Their weight may shift around as they become toned and get stronger, but they don't necessarily lose weight.
Start off with 3x per week (Every other day) at 20-30 minutes of exercise.
The rule of thumb is to increase by no more than 10% per week. so if you do 90 minutes the first week--you do 99 minutes the following week. The second rule of thumb is no more than 10% per workout. So you would divide that 9 minutes across workouts....doing a 33, 33, 33. The week after you can add 10 additional minutes for 109 minutes total.....and do 36, 36, 37.
the increase can be time as I have shown OR it can be distance.
Work up to a max workout of 1 hour--and do not do more than that unless you are engaged in a training schedule. There really is no need for the body to do more. This is the equivilant of no more than 3-5 miles for a novice.
When you begin training--you may notice in the first few weeks that you are doing less than what you were doing as the runs are very very easy. The reason is that there are phases in training and at the beginning--you are getting your body prepared for the stress it is about to endure. Getting the blood flowing well and all that jazz. You'll be excited and pumped and ready to just run off into the sunset. But then you will notice by the long run day--OH CRAP. I have to run THAT far.
Then when you get to the end of the season---when taper time happens--when you start cutting the mileage as the final preps for your body---you'll feel antsy and jittery and then you'll get to your long run day and notice--OH CRAP--I can run the marathon today--I could I could I could please let me please let me please let me. And you must resist at all costs.
So be aware of the mental aspects as well and preparing yourself in that way as well.
Oh and my excuses that I did not let get in my way---
2005 race (2004 training season)--I had a 4yo and a 2yo
2006 (2005 training season)--I had a 5yo and a 3yo, a husband out of town on a field assignment (aka I was a single mom) had a babysitter on Saturdays for long runs, did the TM during the week for short runs, had knee surgery and still manage to skate out with a good finish time (Based on my records) for the half. WE can make all the excuses in the world. But as Nike says--JUST DO IT.
