When it comes to getting fit,a persons best friend just might be a four-legged one. Experts say studies show dog owners walk more,walk faster,and are more likely to enjoy an active lifestyle because of their companion animal. Im fascinated by what a great motivator dogs can be, said Dr Sandra McCune,co-editor of the book,The Health Benefits of Dog Walking for People and Pets. McCune,an animal behaviourist based in Leicestershire,England,said studies show if youre a dog walker,youre more likely to meet the guidelines for daily activities. Dogs are the reason behind two-thirds,66 per cent,of the walks their owners take each week,according to a recent survey of more than 1,011 adults commissioned by pet food company Mars Petcare. One-quarter of people with children and pets regularly visit parks and other outdoor spaces because of their dog. Personally,I have a Labrador, McCune said. When its dark,when its raining,the dog needs a walk,every day. She said dog walking also strengthens social and communal ties. If people go out with a dog,theyre more likely to have a conversation, she explained. According to the poll,some 44 per cent of dog owners aged 65 and older exercise on a weekly basis because of their dog.