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The study was conducted at the Cota-cota university campus, Universidad Mayor de San Andrés, in La Paz, Bolivia, which is located 3300 m above sea level. Before measurements of heart rate and ventilation frequency took place, female adult Tinamous’ and female adult chickens’ were trained for 2 months to run on a motorized treadmill 3 minutes each at 1.5, 2.0, 2.5, 3.0 km km/h. Before starting the protocol, electrodes were implanted transthoracically in the animal to monitor heart rate and ventilation frequency during resting at 4°C in a freezer and 25°C inside an incubator, running on a treadmill at different velocities.


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Last updated: 05/19/12