Nasal strips’ future in Thoroughbred racing seemed limitless in the fall of 1999. Just two weeks after longshot Burrito won a race at Keeneland wearing one, 29 of the 101 horses competing in the 1999 Breeders’ Cup at Gulfstream Park November 6th had the 4-by-6-inch strip affixed 1.5 inches above their nostrils. 

Bill Heller (European Trainer - issue 18 - Summer 2007)

Physiologically speaking, one of the major limiting factors to racehorse performance is how efficiently the lungs can exchange gasses. Clearly any threat to the efficiency of the lungs will result in poor performance.

Paul Peacock (European Trainer - issue 14 - Summer 2006)