Tips from ediets.com

Health and Diet
Enjoy friendly family competition. There aren’t many activities more motivating than team competition. Join a father-son or mother-daughter softball league in your area. Or, sign them up for a kids-only league and volunteer as an assistant coach, so you can get out there on the field and practice with them. Make healthy living a family affair.

Fitness
Be sure to get a medical check up prior to beginning any exercise or sports program. If you are on medication or at high risk for heart disease, diabetes or stroke, you need to have a physician's clearance prior to engaging in vigorous activity.