https://blogs.mercola.com:443/sites/vitalvotes/archive/2019/01/15/6-tips-for-keeping-fit-as-you-age.aspxUse it or lose it is the only mantra you need to know when it comes to keeping fit well into your senior years, is the message Medical Daily wants you to remember. But, because the demands and limitations of your body change over the years, it&rsquo;senCommunityServer 2008.5 SP1 (Debug Build: 31106.3070)https://blogs.mercola.com:443/sites/vitalvotes/archive/2019/01/15/6-tips-for-keeping-fit-as-you-age.aspx?ShowAllComments=True#9389951/16/2019 1:38:07 AM24451277-a5aa-4add-96dc-64081bfd86fa:938995Brian1<p>Any tips on preserving motor units? When we age, we lose motor neurons which is partly what causes sarcopenia. Reinnervation can only adopt so many orphaned muscle cells. For those with polio, resistance training may cause post polio syndrome. The soleus doesn&#39;t lose significant amount of motor units in old age. It seems like endurance exercise is the only known solution so far.</p> <p>Apparently, an 80 year old had a VO2 max of a 35 year old. He was very active.</p> <p><a rel="nofollow" target="_new" href="https://www.hindawi.com/journals/crim/2015/909561/">www.hindawi.com/.../909561</a> </p> <p>Ed Whitlock who broke records in running, had a large number of motor units and a high VO2 max for his age. <a rel="nofollow" target="_new" href="https://www.nytimes.com/2016/12/28/sports/ed-whitlock-marathon-running.html">www.nytimes.com/.../ed-whitlock-marathon-running.html</a> </p>