In addition to the cat’s highly specialised skeleton their balletic athleticism is also due to their abundance of fast-twitch muscles. The cat has evolved over the eons to be balletically graceful while at the same time be a ferocious and highly effective hunter and escaper from predators. It’s fast-twitch muscles are integral to these abilities. The infographic attempts to explain.
Domestic cat’s graceful athleticism partly due to fast-twitch muscles by Michael Broad