I have had one surreal day. Earlier a work colleague claimed to be six foot. So I did the close up hand measurement, in doing so I realised that he either mistaken, or I have shrunk. After a while I decided that it is my posture. My exercises are limited by the pain that I feel some three plus decades. I cannot do crunches due to my lower back, so I have to do planks to kind of offset the difference in my mind. It obviously also affects the yoga routines on the lower back. It is bearable, maybe just a trick of the mind, but I need a new approach here. I have my normal medically given stretching routines, but these are probably limited. Basically I am up a creek without a paddle. I am hoping some of you lot can tell me what are the best training methods for lower spinal damage. I have heard the big training ball can help, but as I am less than confident, I thought I would throw this out you lot, I have never asked before, so it would mean plenty