Why running, hoping and jumping is good for you!
People commonly believe that type of exercise like running, jumping or hoping involves execsive jarring, pounding of the joints and bones and should be avoided. I heard numerous times people saying that they stopped doing these activities because they were scarred of doing damage to the joints and bones. The evidence tells us something different. It has been shown that regular weight bearing-high impact exercise such running, jumping or hoping may improve the bone mass. So why it is good to have increased bone mass? Lets give example; in older female population there is natural decrease in bone mass after menopause. When you have better bone mass before menopause your bones will be much stronger and even when some bone density decreases (which is innevitable) they may still be strong enough. So regular high impact exercise in younger age may be considered as natural way of reducing chances of having weaker bones in older age! However high impact exercise may not be for everyone. People with history of joint problems and weak bones should consult their physician before undertaking high impact exercise.
Check out this article; http://well.blogs.nytimes.com/2014/03/07/why-high-impact-exercise-is-good-for-your-bones/?_php=true&_type=blogs&_php=true&_type=blogs&_r=1&