Research overview: respiratory and cardiovascular limits during cheetah sprints

Sustaining a sprint demands rapid oxygen delivery and gas exchange. This overview surveys what is known about the cheetah heart, lungs, blood, and airways in the context of brief, maximal exercise. Features often discussed include large nasal passages and airways for high airflow, a sizable heart and adrenal glands, and a high red-blood-cell capacity, all framed as supporting explosive effort and rapid recovery. Researchers infer these roles from comparative organ morphometrics and from physiological measurements during exercise. Because the chase is so short, the cardiovascular system must surge output quickly rather than sustain it, a different challenge from endurance running. Understanding these limits ties together the cat respiratory anatomy, its reliance on anaerobic metabolism, and the heat and oxygen debt it carries away from a hunt.