Weekends should be about going out and doing something together. Kids are master adapters. If you make physical activity a part of the family weekend routine, that is what they will expect.While it can be tempting to let your kids sit in front of the TV so that you can get some extra sleep or do things around the house, it can set a sedentary pattern. Instead, try getting them out the door after breakfast. That way, they’re less likely to beg for Saturday-morning cartoons or reach for the videogames.If you say you want them to go out so you can all get some exercise, it won’t have quite the allure of, say, going for a family bike ride or having a picnic in the park. Bring along a Frisbee or a kite and before you know it, your kids will be so busy having fun, they won’t want to stop for lunch.Kids are naturally competitive, so motivate him by setting up a game with a soccer ball (if you only have one or two people on a team, it doesn’t matter -- you can still set up goals and score). You can also suggest races or set up contests to see who can throw a ball or Frisbee the farthest. Whatever activity you choose for your child, he&#39;ll be more likely to push himself -- and have fun -- if you set it up as a challenge.It can be soccer, karate, or any other physical activity he might enjoy. Ask other parents what their kids are doing on the weekends. If you child gets to play with a friend, he may be more motivated to join in.