balance beam vs fitness club

balance beam

noun
  • A gymnastics event using the balance beam apparatus. 

  • The horizontal member of any balance (scale,) usually carrying pans at each end, supported at its center by a fulcrum. 

  • A gymnastics apparatus, a narrow wooden rail used in artistic (athletic) gymnastics. 

fitness club

noun
  • A facility with exercise equipment and sometimes instructors. 

How often have the words balance beam and fitness club occurred in a corpus of books? (source: Google Ngram Viewer )