I agree with tkrik, walking on treadmill is definetly different. I can walk further off a treadmill than on. I also hold on to at least one arm due to balance issues, when I step off I take a minute before I try to walk. Be proud of what you did accomplish you will get there. On days when walking is more difficult try a stationary bike, one you sit down in not on top of (i hope that make sense.) Way to go.