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Titolo:
Nasal strips do not affect pulmonary gas exchange, anaerobic metabolism, or EIPH in exercising Thoroughbreds
Autore:
Goetz, TE; Manohar, M; Hassan, AS; Baker, GJ;
Indirizzi:
Univ Illinois, Coll Vet Med, Dept Vet Clin Med, Urbana, IL 61801 USA Univ Illinois Urbana IL USA 61801 Dept Vet Clin Med, Urbana, IL 61801 USA Univ Illinois, Coll Vet Med, Dept Biosci, Urbana, IL 61801 USA Univ Illinois Urbana IL USA 61801 Med, Dept Biosci, Urbana, IL 61801 USA
Titolo Testata:
JOURNAL OF APPLIED PHYSIOLOGY
fascicolo: 6, volume: 90, anno: 2001,
pagine: 2378 - 2385
SICI:
8750-7587(200106)90:6<2378:NSDNAP>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
VASCULAR PRESSURES; DILATOR STRIP; BLOOD AMMONIA; HORSES; HEMORRHAGE; LACTATE; RESISTANCE; RACEHORSES; HUMANS;
Keywords:
nasal dilator strip; blood-gas tensions; lactate production; ammonia production; exercise-induced pulmonary hemorrhage;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Manohar, M Univ Illinois, Coll Vet Med, Dept Vet Biosci, 1102 W Hazelwood Dr, Urbana,IL 61802 USA Univ Illinois 1102 W Hazelwood Dr Urbana IL USA 61802 61802 USA
Citazione:
T.E. Goetz et al., "Nasal strips do not affect pulmonary gas exchange, anaerobic metabolism, or EIPH in exercising Thoroughbreds", J APP PHYSL, 90(6), 2001, pp. 2378-2385

Abstract

The present study was carried out to examine whether nasal strip application would improve the exercise-induced arterial hypoxemia and hypercapnia, diminish anaerobic metabolism, and modify the incidence of exercise-induced pulmonary hemorrhage (EIPH) in horses. Two sets of experiments, control andnasal strip experiments, were carried out on seven healthy, sound, exercise-trained Thoroughbred horses in random order, 7 days apart. Simultaneous measurements of core temperature, arterial and mixed venous blood gases/pH, and blood lactate and ammonia concentrations were made at rest, during submaximal and near-maximal exercise, and during recovery. In both treatments, whereas submaximal exercise caused hyperventilation, near-maximal exercise induced significant arterial hypoxemia, desaturation of Hb, hypercapnia, and acidosis. However, O-2 content increased significantly with exercise in both treatments, while the mixed venous blood O-2 content decreased as O-2 extraction increased. In both treatments, plasma ammonia and blood lactate concentrations increased significantly with exercise. Statistically significant differences between the control and the nasal strip experiments could not be discerned, however. Also, all horses experienced EIPH in both treatments. Thus our data indicated that application of an external nasal dilator strip neither improved the exercise-induced arterial hypoxemia and hypercapnia nor diminished anaerobic metabolism or the incidence of EIPH in Thoroughbred horses performing strenuous exercise.

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Documento generato il 23/01/20 alle ore 03:47:05