If you want to change your habits you may want to change your thinking first!
Think: I hate sports and it works. You keep on hating sports. 
Think: I love to experience something new. Go for a walk and observe what happens inside like a new perspective. Some may observe nervousness or resistance at the beginning and flow of easiness after some time. Make it a game like watching a new TV series. By observing your thoughts can soon choose what you want to keep in stock and what new seeds you want to plant to grow in your perception.
Walking Guru 