There are a plethora of websites that deal with health and exercise for children and adults. This is a small sampling:- KidsHealth http://kidshealth.org/kid/stay_healthy/fit/work_it_out.html
- My Life Check http://mylifecheck.heart.org/Multitab.aspx?NavID=3&CultureCode=en-US
- http://www.heart.org/HEARTORG/Educator/FortheGym2/JumpRopeSkills/Jump-Rope-Skills_UCM_001270_Article.jsp
- http://www.usajumprope.org/
- http://www.absoluteastronomy.com/topics/Jumping
- http://library.thinkquest.org/5407/
- http://mylifecheck.heart.org/Multitab.aspx?NavID=8&CultureCode=en-US
- http://www.heart.org/HEARTORG/GettingHealthy/HealthierKids/ActivitiesforKids/5-Ways-that-Play-can-Change-your-Day_UCM_312479_Article.jsp
