running shoes vs spikes

running shoes

noun
  • Sneakers, not cleats; tennis shoes; normal gym shoes. 

  • Trainers with sharp spikes in the soles. 

spikes

noun
  • A pair of athletic shoes equipped with spikes on the sole and heel for better traction. 

  • Synonym of spike strip 

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