For an additional anecdata point, my exercise regime has <i>always</i> been strength-building weight-lifting with some cardio sprinkled on top.  I just don&#x27;t get joint pain.<p>Also, I like to make it <i>intensive</i> cardio, which (I&#x27;m just picking it up again now, so past tense) tended to leave me with the most energy I&#x27;ve ever had in my life.