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Racetrack exercise vs treadmill exercise with respect to exercise-induced pulmonary haemorrhage (EIPH): implications for studies of putative treatments of EIPH
- Source :
- Comparative Exercise Physiology. 15:313-318
- Publication Year :
- 2019
- Publisher :
- Wageningen Academic Publishers, 2019.
-
Abstract
- Multiple treadmill-based studies using low numbers of horses have evaluated potential prophylactic treatments for exercise-induced pulmonary haemorrhage (EIPH) and found no effect. However, the relevance of these findings to racing is unclear. Because severity of EIPH incurred on treadmills has not been compared to that following high-speed racetrack exercise in the same horses, we retrospectively performed this comparison using bronchoalveolar lavage fluid red cell numbers (BALFRBC) due to the relative insensitivity of tracheobronchoscopy. Six race-fit Thoroughbreds with recent tracheobronchoscopic EIPH scores ≥2 were exercised to fatigue on a treadmill at 115% V̇O2max (5% incline, 12.3-14.2 m/s), and maximally on a racetrack over 800 m and 1,100 m with average speeds ranging from 16.4-16.7 and 15.5-16.6 m/s, respectively. Run order varied but was not randomised. Bronchoalveolar lavage (BAL) was performed blindly using Bivona tubes 45-60 mins post-exercise. BALFRBC were determined using a haemocytometer. Data were expressed as median and interquartile range, and analysed using RM ANOVA with significance set at P
- Subjects :
- medicine.medical_specialty
medicine.diagnostic_test
040301 veterinary sciences
Physiology
business.industry
Veterinary (miscellaneous)
Endocrinology, Diabetes and Metabolism
0402 animal and dairy science
Biophysics
Horse
Treadmill exercise
04 agricultural and veterinary sciences
Exercise-induced pulmonary haemorrhage
040201 dairy & animal science
Biochemistry
0403 veterinary science
Bronchoalveolar lavage
Physiology (medical)
Internal medicine
medicine
Cardiology
Orthopedics and Sports Medicine
Treadmill
business
Subjects
Details
- ISSN :
- 17552559 and 17552540
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- Comparative Exercise Physiology
- Accession number :
- edsair.doi...........297eee19f135c32bef1d640098f6225e