Don't feel silly using your arms to energise yourself when fitness walking
Walking properly also involves your arms. Don't be ashamed of the natural pendulum provided by the back and forth movement of your arms when you are fitness walking.
With your shoulders loosened up and relaxed, this pendulum will improve your balance and, above all, exercise your upper body muscles, especially the oblique abdominal muscles on the side of your body. After a few sessions, you will feel great and sense your body toning up!
Also remember to stand up straight: sport walking uses your entire body and helps you build endurance from head to toe.