Characteristics of Respiratory Function during Swimming Exercise in Thoroughbreds.

• DOI: 10.1292/jvms.60.687
• Publication Date: 2002-10-09T03:07:09Z
• Authors: Seiji HOBO; Kohei YOSHIDA; Toyohiko YOSHIHARA
• Keywords: Male; Respiration; Physical Exertion; 0402 animal and dairy science; Blood Pressure; 04 agricultural and veterinary sciences; Pulmonary Artery; 0403 veterinary science; Inhalation; Heart Rate; Physical Conditioning, Animal; Lactates; Animals; Female; Horses; Swimming

Equine respiratory patterns during swimming were examined in five normal horses. The experiment included a preliminary warming-up stage and 6 circuits of around an annular pool 50-meter-circumference. horses for rates, intratracheal pressures, inspiratory time (TI), expiratory (TE), cycle (T; TI + TE), heart blood lactate concentrations, hematocrit gases. rates maintained 25/min. Blood gas values changed significantly swimming. pressures expiration inspiration increased with exercise duration compared to the immediately after stage. duty ratio (TI/T) averaged 0.33, which implied that was roughly doubled time. We considered longer may limit sudden collapse airways by water pressure prevent radical decrease air space volume, thus maintains buoyancy.