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 :
The post of CJCSC was created by former Prime minister of Pakistan Zulfikar Ali Bhutto in March 1976, and the first Chairman was four star rank officer, General Muhammad Shariff. The current holder of the office is General Khalid Shameem Wynne who is recently promoted to a 4 star rank.