Bull & Bronc Riding
Flank Straps
A flank strap is a rope or leather band cinched tightly around an animal's flank — the sensitive area just in front of the hindquarters. It is not a safety device. It is applied specifically to cause irritation and pain, provoking the animal to buck more violently. When the strap is removed after the ride, the bucking typically stops immediately.
The evidence
Veterinary studies have documented elevated cortisol levels — the primary stress hormone — in rodeo animals consistent with acute pain responses. A 1994 study published in the Journal of Animal Science found cortisol levels in rodeo animals up to three times higher than baseline pasture measurements.
Source: Journal of Animal Science, 1994; American Veterinary Medical Association reports