Aweakened peroneal muscle can cause sloppy walking, drop foot which causes tripping and you must lift your leg from the thigh so that your toes clear the ground and your foot slaps onto the ground, hopefully heel first. I have seen many people who cannot feel their feet or legs in a stocking pattern and many who cannot move their ankles, feet and toes and some who cannot feel or move anything from the knees down.
Most people experience some loss of movement.
CMT is primarily a disease of the nerves where by the myelin or insulating sheath of myelin on the nerves does not stay intact and the messages from the brain to the muscles through the nerves are not carried properly. It differs from muscular dystrophy in that people who have CMT are born with normal muscles. The muscles atrophy because the CMT affected nerves that serve them cannot properly send the message from the brain for them to move. Therefore, muscles can atrophy even though they are being used. People with muscular dystrophy have a problem with their muscles from the beginning.