2. Use your arms
Avoid holding on to the handrails as this won`t allow you to maintain correct posture. Bend elbows and pump your arms swinging forward and back from your shoulders.

3. Avoid going too fast
If you find yourself over-striding or leaning forward in an attempt to walk fast -decrease speed and correct your posture. Too much, too fast, too soon - are the main causes of injury. Make sure the exercise program is structured, systematic and progressive.