Not for osteoporosis. My daughter had this therapy for 6 months on a severely shattered wrist - in the end, the jury is out on how much it helped - the bone still has not completely healed after 27 months.
I know people want to do everything in their power to strengthen their bones, and there are anecdotal reports of helpfulness for osteoporosis, but I still haven't seen a comprehensive studies showing the amount level of treatment, length of treatment, and long term effectiveness. Many machines are shown placed on specific bones or joints, so I am not sure what the protocol would be if one had widespread osteoporosis - legs, arms and spine. Also, are there any long-term ill effects from a lot of exposure, or exposure over a long time?
So, like many other treatments for the woes of aging, I would say "Looks promising. Now let's see what the long term effectiveness is."
Sue