Oxygen consumption, locomotory‐respiratory coupling and exercise‐induced pulmonary hemorrhage in horses during the Paso Fino gait
Abstract Background Workload associated with the high frequency Colombian Paso Fino gait has not been evaluated. Objectives To determine the oxygen consumption (V̇O2), heart rate (HR), stride frequency: breathing ratio, and hematology associated with the Paso Fino gait, including whether exercise‐in...
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Wiley
2024-11-01
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| Series: | Journal of Veterinary Internal Medicine |
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| Online Access: | https://doi.org/10.1111/jvim.17226 |
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| author | Shannon Massie Renaud Léguillette Warwick Bayly Ray Sides Angélica María Zuluaga‐Cabrera |
| author_facet | Shannon Massie Renaud Léguillette Warwick Bayly Ray Sides Angélica María Zuluaga‐Cabrera |
| author_sort | Shannon Massie |
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| description | Abstract Background Workload associated with the high frequency Colombian Paso Fino gait has not been evaluated. Objectives To determine the oxygen consumption (V̇O2), heart rate (HR), stride frequency: breathing ratio, and hematology associated with the Paso Fino gait, including whether exercise‐induced pulmonary hemorrhage (EIPH) occurs. Animals Eleven Paso Fino horses. Methods Prospective cohort study. Horses performed a standardized Paso Fino gait test across a wooden sounding board, simulating competition. V̇O2 and ventilatory parameters (tidal volume [VT]; peak inspiratory and expiratory airflows [PkV̇I, PkV̇E]; respiratory rate [RR], minute ventilation [V̇E]) were measured using a portable ergospirometry facemask. Heart rate was measured using electrocardiograms. Post‐exercise lactate, hematocrit, bicarbonate, pH, electrolytes, and biochemistry concentrations were measured. EIPH was assessed via tracheobronchoscopy. Four horses completed a secondary high‐intensity gallop to elicit peak V̇O2 for comparative purposes. Results Median [IQR] mean individual HR during the Paso Fino gait was 190 [178, 201] bpm. Relative V̇O2 measured 49.8 [48.4, 59.5] mL/(kg min; VT = 8.6 [8.0, 10.7] L; RR = 87.1 [75.4, 99.5] bpm; V̇E = 869 [740, 902] L/min; PkV̇I = 33.4 [32.7, 37.2] L/s; PkV̇E = 44.2 [40.3, 46.0] L/s). Horses took 2.8 [2.7, 2.9] strides/second and had a stride frequency: breathing ratio of 2.0 [1.8, 2.3]. Post‐exercise blood lactate concentration and hematocrit measured 2.7 mmol/L and 50% respectively. Three horses showed endoscopic evidence of Grade‐1 EIPH. The Paso Fino gait V̇O2 and HR equaled 79% V̇O2pk and 91% maximal HR, respectively, based on the high‐intensity gallop. Conclusions and Clinical Importance The Paso Fino gait represents submaximal exercise based on V̇O2 < V̇O2pk and blood lactate. |
| format | Article |
| id | doaj-art-c4e9755eef524816813d4b937cc01f36 |
| institution | Kabale University |
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| language | English |
| publishDate | 2024-11-01 |
| publisher | Wiley |
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| series | Journal of Veterinary Internal Medicine |
| spelling | doaj-art-c4e9755eef524816813d4b937cc01f362024-11-25T08:31:40ZengWileyJournal of Veterinary Internal Medicine0891-66401939-16762024-11-013863337334510.1111/jvim.17226Oxygen consumption, locomotory‐respiratory coupling and exercise‐induced pulmonary hemorrhage in horses during the Paso Fino gaitShannon Massie0Renaud Léguillette1Warwick Bayly2Ray Sides3Angélica María Zuluaga‐Cabrera4Faculty of Veterinary Medicine University of Calgary Calgary, Alberta CanadaFaculty of Veterinary Medicine University of Calgary Calgary, Alberta CanadaCollege of Veterinary Medicine Washington State University, Grimes Way Pullman, Washington USACollege of Veterinary Medicine Washington State University, Grimes Way Pullman, Washington USAInstitución Universitaria Visión de las Américas Medellín ColombiaAbstract Background Workload associated with the high frequency Colombian Paso Fino gait has not been evaluated. Objectives To determine the oxygen consumption (V̇O2), heart rate (HR), stride frequency: breathing ratio, and hematology associated with the Paso Fino gait, including whether exercise‐induced pulmonary hemorrhage (EIPH) occurs. Animals Eleven Paso Fino horses. Methods Prospective cohort study. Horses performed a standardized Paso Fino gait test across a wooden sounding board, simulating competition. V̇O2 and ventilatory parameters (tidal volume [VT]; peak inspiratory and expiratory airflows [PkV̇I, PkV̇E]; respiratory rate [RR], minute ventilation [V̇E]) were measured using a portable ergospirometry facemask. Heart rate was measured using electrocardiograms. Post‐exercise lactate, hematocrit, bicarbonate, pH, electrolytes, and biochemistry concentrations were measured. EIPH was assessed via tracheobronchoscopy. Four horses completed a secondary high‐intensity gallop to elicit peak V̇O2 for comparative purposes. Results Median [IQR] mean individual HR during the Paso Fino gait was 190 [178, 201] bpm. Relative V̇O2 measured 49.8 [48.4, 59.5] mL/(kg min; VT = 8.6 [8.0, 10.7] L; RR = 87.1 [75.4, 99.5] bpm; V̇E = 869 [740, 902] L/min; PkV̇I = 33.4 [32.7, 37.2] L/s; PkV̇E = 44.2 [40.3, 46.0] L/s). Horses took 2.8 [2.7, 2.9] strides/second and had a stride frequency: breathing ratio of 2.0 [1.8, 2.3]. Post‐exercise blood lactate concentration and hematocrit measured 2.7 mmol/L and 50% respectively. Three horses showed endoscopic evidence of Grade‐1 EIPH. The Paso Fino gait V̇O2 and HR equaled 79% V̇O2pk and 91% maximal HR, respectively, based on the high‐intensity gallop. Conclusions and Clinical Importance The Paso Fino gait represents submaximal exercise based on V̇O2 < V̇O2pk and blood lactate.https://doi.org/10.1111/jvim.17226exerciseminute ventilationstride frequencytidal volume |
| spellingShingle | Shannon Massie Renaud Léguillette Warwick Bayly Ray Sides Angélica María Zuluaga‐Cabrera Oxygen consumption, locomotory‐respiratory coupling and exercise‐induced pulmonary hemorrhage in horses during the Paso Fino gait Journal of Veterinary Internal Medicine exercise minute ventilation stride frequency tidal volume |
| title | Oxygen consumption, locomotory‐respiratory coupling and exercise‐induced pulmonary hemorrhage in horses during the Paso Fino gait |
| title_full | Oxygen consumption, locomotory‐respiratory coupling and exercise‐induced pulmonary hemorrhage in horses during the Paso Fino gait |
| title_fullStr | Oxygen consumption, locomotory‐respiratory coupling and exercise‐induced pulmonary hemorrhage in horses during the Paso Fino gait |
| title_full_unstemmed | Oxygen consumption, locomotory‐respiratory coupling and exercise‐induced pulmonary hemorrhage in horses during the Paso Fino gait |
| title_short | Oxygen consumption, locomotory‐respiratory coupling and exercise‐induced pulmonary hemorrhage in horses during the Paso Fino gait |
| title_sort | oxygen consumption locomotory respiratory coupling and exercise induced pulmonary hemorrhage in horses during the paso fino gait |
| topic | exercise minute ventilation stride frequency tidal volume |
| url | https://doi.org/10.1111/jvim.17226 |
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