warming up vs workout

warming up

noun
  • a regime of gentle exercise undertaken before some strenuous exercise or sport 

workout

noun
  • An exercise session; a period of physical exercise. 

  • A schedule or program of specific exercises, especially one intended to achieve a particular goal. 

  • Any activity that requires much physical or mental effort, or produces strain. 

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