Sorry to hear your not feeling 100%.I spoke to my son in NC today.He has been having back issues over a year. He used to PL when he was younger. He is 46yo has a desk job. He did have an MRI and had 2 cortisone shots.He bought an inversion table and a back brace.His main complaint is he's stiff. I just bought a belt sqt.apparatus for,plan to give it to him on Christmas. Thankfully at almost 72 I feel pretty good most days. Thank you for setting up this cycle routine. Next week my be a little tuff,but I need to get my head into it.