Because of requirements of folding frame design, most folding treadmills are naturally less stable than non-folding treadmills. (That doesn't mean they aren't stable - it just means that non-folding treadmills are more stable).

That is why, if you look at stability ratings for treadmills, non-folding treadmills almost always come out on top.

That's also why you'll notice that as you get into premium treadmills ($2000+), very few of them will fold up.

If you're paying that much for a treadmill you want one that feels as stable as a commercial unit. (Ever notice that treadmills at health clubs don't fold?)

So main advantage to non-folding treadmills (and it's a compelling one - especially if you're a runner) is that they are generally more stable than folding treadmills.

There are a few exceptions to this rule of course, but that's really main difference when comparing folding versus non-folding treadmills.

Regardless of which option you choose, keep in mind that while non-folding treadmills might be a little more difficult to move, they can offer some great added benefits to your workout itself.

Kathryn O'Neill is chief editor for Treadmill Review at http://www.treadmillreview.net

For treadmill buying tips, brand reviews, best buys and weekly sales, visit Treadmill Review at:

http://www.treadmillreview.net

1. Listen to your body and check with your physician before starting an exercise program 2. Do a variety of exercises 3. Play a sport 4. If a body part hurts, don't aggravate it & seek medical attention 5. During exercise, mentally focus on body part you're exercising 6. At least two genuine smiles while resting during an hour workout 7. Vary cardio routines including length of time, day, and speed 8. Have at least one brief conversation before or during workout 9. Compete with a sub-goal in mind (repetition required before going to next level(s)) and reaching a goal 10. Less is more if done correctly 11. Drink eight glasses of water a day …. Start day with one glass & drink less with meals …. Don't drink it all at once 12. Eat a variety of nourishing foods (include some fruit, one walnut, one pecan, two almonds) 13. Drink no more than 1.5 cups of your favorite sport drink after exercise 14. Don't eat within two hours of exercising for optimal stomach strength