The problem was, I was getting into a rut.  I ran at around the same speed and the same incline, with minor variations.  It was very boring, and I wasn't burning anymore calories, nor was I getting any toner. 

So I started using some of the programmed workouts that were installed on my treadmill.  I found I was kicking up my exercise.  It was becoming more challenging.  And if there is an indication I am getting a better workout, it was the fact that I was sweating bullets. 

Now I have a new routine, evertime I exercise I use a different program.  They include the cardio, weightloss, strength, interval and hill climbing programs.  I find the weightloss is the one that kicks my butt, however, the interval program is a proven method to get more results in less time.  You go from intervals of fast/steep to slow/level paces. 

The fact is, running or walking in place is about as exciting as listening to George Bush speak.  But when you add new challenges it is more like listening to Obama.  And if you feel challenged and motivated you are probably going to burn more calories and get toned.

It is also important to constantly set new benchmarks.  Don't fall into a rut.  If you are completing a program at the current level with moderate ease, kick it up a notch or two.  To achieve your fitness goals you need to do more than go through the motions.

In addition, the treadmill is running at a considerable faster speed in comparison to walking.   These are considerations when buying a treadmill for running or jogging.

• The motor - I would recommend you get a model with at least 2.5 continuous duty horsepower.  That is the HP where the treadmill runs comfortably, not the peak HP.  For runners, you are better off with a 3.0 HP motor.  The goal is to have a motor that does not strain when running at higher speeds.
• The deck - Get a treadmill with a 1" deck, especially if you are a bit over weight.  You want a deck that can handle the constant impact. 
• The treadbelt- You want a machine with a quality treadbelt that will not stretch excessively from high speeds.
• Deck length - When you run or jog you need a longer deck.  For people of average height a 54" or 55" deck is adequate.  If you are tall, and/or a sprinter consider a 60" deck. 
• Large rollers - A model with 2.5" or larger rollers is suggested.  Larger rollers are better for extending the life of many of the components. 

I would recommend you spend a minimum of $1,000 if you plan on moderate jogging.  If you are a runner you want to price models in the $1,500 - $2,000 price range.  It is better to get a treadmill specifically designed for jogging or running. You less likely to "run" down your treadmill.   

Recommended treadmills for jogging - Sole F80, Smooth 6.25, New Balance 1400

Recommended treadmills for running - Sole F85, Smooth 9.25HR, PaceMaster Silver