In 1980 Alberca et al. described a patient with a syndrome of increased muscle irritability, who presented ondulating muscle rolling movements and electrically silent cramps, myoedema and muscle reactions to mechanical stimulation similar to myotonic response, suggesting a disfunction at myofibrillar level.
For c-3po, it was a costume, Anthony Daniels played c-3po: For R2-D2, It was a costume and a remote controlled robot. CGI was also used in the prequel trilogy. So, they had Kenny Baker to play him : And from Portrayal section of wookieepedia article on R2-D2 :
C-3PO is a popular character in Star Wars and probably one of the most notable droids of all time, and was primarily designed to serve humans.He is portrayed by Anthony Daniels. Love this witty and pessimistic human-cyborg! CATEGORY: MOVIES. #TAGS: Movies, C3PO soundboard, Star Wars, C3PO Sounds, C-3PO. RIGHTS: PERSONAL.-3PO is a popular character in Star Wars and probably one of the most notable droids of all time, and was primarily designed to serve humans. He is portrayed by Anthony Daniels. Love this witty and pessimistic human-cyborg! CATEGORY: MOVIES.