I purchased the ab circle pro after watching how promising it looked on tv. I bought it from ebay knowing that with the TV adds you always get charged top dollar. got the maching set it up thinking wow this is great, used it a few times and felt the back of my arms hurting after the work out. after using it for about a week every day I noticed the screws to the bar holding the knee pads would get loose so I would stop my work out and have to do some work to tighten the machine. after working out which I had increased my workout the bar came loose and my legs were seperated completely which was very painful, I just had given up on the machine at that point. a few days later I started with lower back pain, it got so bad I could not get up out of bed it was coming from my neck all the way to my lower spine, this was in Nov.2009, I went to my primary care doctor and he ordered an MRI of my lumbar spine which showed a lot of damage I have it on a medical report, I have been to a chiro who said stop! the twisting motion did a lot of damage and I have been to over 15 doctors to rule out anything else and there is nothing that would indicate this was an existing problem. I am going to pain management next because it really has change my quality of life. DO NOT BUY THIS MACHINE I think we should start a class action against this company for thier failure to ensure the safety of the consumer who watches this promising commercial and then buys this machine, I wrote the seller on ebay and they did not hesitate to not only refund my money but they told me to keep the machine which says a lot since with ebay if you dont want something the return policy is you must send it back I still have the machine to show what is malfunctioning anyone who feels as I do please contact me at
[email protected] they should be punished for trying to make money on something that can hurt you to the point that it has me. I am not the same anymore and live in pain everyday while they have that girl on TV making the public think this is the best machine you can purchase.