calisthenics vs pursuit

calisthenics

noun
  • A system of such exercises. 

  • Gymnastic exercises under the participation of a (surface-wise) multitude of muscles and often minimal equipment (thus, usually bodyweight exercises) with a stress on stamina. 

pursuit

noun
  • A hobby or recreational activity, done regularly. 

  • A discipline in track cycling where two opposing teams start on opposite sides of the track and try to catch their opponents. 

  • The act of pursuing. 

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