walk through vs warm up

walk through

verb
  • To rehearse (something) casually. 

  • Used other than figuratively or idiomatically: see walk, through. 

  • To explain (something) to (someone), step by step. 

  • To perform (something) with ease or perfunctorily. 

warm up

verb
  • To prepare for an activity by carrying out a practice or preparation routine. 

  • To reach, or cause to reach, a normal operating temperature (of a car for example). 

  • To become warmer. 

  • To heat or reheat (e.g. food). 

  • To do gentle exercise, stretching etc., in order to prepare the body for more vigorous exercise. 

  • To make (an audience) enthusiastic or animated before a show 

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