they walking backwards because to train their confident...
to exercise the leg muscles that are seldom used as our leg muscles are build the normal way for walking forward instead.For advance walker they can run backwards
But there are some side effects. as walking backwards u tend to look back after a few steps. this neck movement of looking back causes a strain to ur neck and upper backbone which is not good though. unless u are very very confident that u no need to look at all. To be in that state u are able to donate ur eye/cornea to someone who needs it more then u liaoz... :devil: