Characteristics of Respiratory Function during Swimming Exercise in Thoroughbreds.

Male Respiration Physical Exertion Blood Pressure 04 agricultural and veterinary sciences Pulmonary Artery 0403 veterinary science Inhalation Heart Rate Physical Conditioning, Animal Lactates Animals Female Horses Swimming
DOI: 10.1292/jvms.60.687 Publication Date: 2002-10-09T03:07:09Z
ABSTRACT
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.
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