People who choose a low-stress activity to introduce their bodies to a new regimen of healthy living might choose to start off slow and build up to a more exertive routine.  As their ability to do more for longer periods increase, it is important that their equipment has the ability to grow with them.  Treadmills are a great example of this type of equipment.  Treadmills can be adjusted to perform at higher levels as the user’s ability increases.

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