welcome
NBC Sports

NBC Sports

Entertainment

Entertainment

What makes a Kentucky Derby champion? Big hearts, immense lungs and powerful legs

NBC Sports
Summary
Nutrition label

82% Informative

Kentucky Derby will draw attention to horse racing's most-watched event.

Horses have big hearts, immense lung capacity, robust musculoskeletal systems.

Long, thin legs helped horses survive in the wild.

Breeders bred and trained horses for various purposes over millennia.

Horse hearts are built for exertion, lung capacity 10 times that of humans.

In 2023 , deaths occurred not only at Churchill Downs , but other major racing venues, affecting public perceptions of the sport.

Reviews found no single cause for the deaths, but for 2024 , Churchill Downs upgraded equipment used on its dirt surface and added an equine safety veterinarian.

Horseracing Integrity and Safety Authority noted steps being taken to reduce injuries and fatalities.