That's how it's done! Despite travelling slower than walking, I work up a sweat because more muscles are being used when very slow jogging, than normal walking. Unwell little old women tapping their walking sticks veritably zoom past walking their miniscule twitchy and bad tempered rat dogs. Embarassing, but a better workout than walking at normal speed, or a bit faster.I`v found that now I am much older when I run I am actually slower than when I am walking