tune-up vs warming up

tune-up

noun
  • A series of preparations for vigorous exercise; a warm-up 

  • A series of adjustments to an engine in order to improve its performance 

  • A match or race (frequently one exhibition in nature) contested as preparation for a match or race of high stakes. 

warming up

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

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