in shape vs muscular

in shape

prep
  • In a good state of physical fitness or bodily appearance. 

  • In good condition, repair; in a good state. 

muscular

adj
  • Robust, strong. 

  • Full-bodied 

  • Of, relating to, or connected with muscles. 

  • Having large, well-developed muscles. 

  • Brawny, thewy, having strength. 

How often have the words in shape and muscular occurred in a corpus of books? (source: Google Ngram Viewer )