It’s time to start moving! Walking is an excellent form of exercise, especially for beginners or people returning to fitness after a long time off. This introductory walking program will help you build enough endurance to safely and effectively increase the time that you walk over the course of 12 weeks.
Aim for a total of five workouts per week: Do the Strength-Cardio Circuit two times (but not on consecutive days), Speed-Burst Intervals one to two times, and Long-Hill Intervals one to two times. | Health.com
This Is Your Body On Walking http://www.rodalesorganiclife.com/wellbeing/this-is-your-body-on-walking?cid=soc_Rodale's%2520Organic%2520Life%2520-%2520RodalesOrganicLife_FBPAGE_Rodale's%2520Organic%2520Life__