http://articles.mercola.com/sites/articles/archive/2004/10/23/exercise-bone-mass.aspxExercise does more than just distract children from watching television. According to studies, mechanical loading -- running or jumping, as opposed to swimming or biking -- may be the best way to strengthen kids' bones. The benefits of such exercisesenCommunityServer 2008.5 SP1 (Build: 31106.3070)http://articles.mercola.com/sites/articles/archive/2004/10/23/exercise-bone-mass.aspx#197148Fri, 29 May 2009 01:05:37 GMT24451277-a5aa-4add-96dc-64081bfd86fa:197148Katie_L<p>I am a little unsure about the not weight lifting for adolescence. I am a 13-year-old girl, and I don&#39;t believe weightlifting could harm my growth if done with proper form. I&#39;m only using dumbbells, but I REALLY don&#39;t want to stunt my growth at 4&#39;11. Many sources say that it is a myth.</p> <img src="http://articles.mercola.com/aggbug.aspx?PostID=197148" width="1" height="1">