Interval Training: Walkers Charge Ahead!

Hello serious walkers and the beginners! We are now entering another terrain - efficient walking. This is another three week challenge. I think that a shorter, measurable challenge works the best when we try something new. Here are the RULES: 1. Commit to a number of miles per day that you would like to walk. Make it a reasonable number but remember that you have to stick to it for 21 days. Remember that it's okay to shorten the miles because we will be doing interval walking. 2.