Do not approach by heelApproach by the heel will reduce the speed because then your legs need to spread out, more emphasis on the body makes more energy consumption. At this concentration muscles to keep the body more balance to proceed forward. Moreover, when the grounding by the heel will force out many bad junk on your frame. The best way to limit the power of this is use your treadmill is designed with shock absorbers. Use the steps in the short run, you will feel a little uncomfortable at first but once you've adapted to it, you automatically are accustomed to land by heart, and remember the focus for the step pedal to reach best speed.
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