The researchers videoed mice trying to escape a water pool. They varied the width of the exit doors to allow just one mouse through at a time, then two, three and four. The distance between the doors was also altered. The number of mice in the enclosed wet pool was maintained at 30 - with a new mouse added each time one escaped - to keep the panic level constant.
"Interestingly, we found that the most efficient escape was when the door size was only large enough for one mouse to squeeze through, as it promoted self-organised queuing. However, as soon as the door width was increased, the mice stopped lining-up and competed with each other, which slowed down the overall escape rate."
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.