Canes, walkers, wheelchairs, scooters: which one do you need? While there are hundreds of options available, only one option will fit you the best and thus provide the biggest benefit possible. Consider the following areas when deciding which type of ambulation aid to select – balance, leg strength, arm strength, weight bearing status, and endurance. For each area, determine whether or not is is an area of limited function. If it is not limited, then it is considered to be within functional limits (WFL). Use the table below to quickly determine which ambulation aid will work best.