Treadmills should be strong and stable. When you are testing out a potential treadmills for purchase make sure you are dresses as if you are actually going to exercise and wearing your running shoes. Check the rails to make sure they are properly secured and you can easily wrap your hand around them. Other things to check is if the running path and belt are large enough for you to run on. Another great feature of treadmills is that they are programmable and can be preset. This is a great way to make your exercise experience more enjoyable. Also a bottle holder and magazine rack are handy conveniences when doing a daily workout.
Take into consideration the amount of space you have to devote to your treadmill this will determine which type of treadmill is bets for you. Remember to measure your space and bring home the dimensions of the treadmill first. Most exercise equipment looks small on the sales floor but can be too big for a normal sized room. Many treadmills fold up, if you are seeking a fold up model measure the space you have to house it and buy accordingly.