title: A respiratory mask for resting and exercising dogs.
abstract: A respiratory face mask has been developed for use with unsedated beagles trained to run on a treadmill. The latex rubber mask, shaped to fit the animal's muzzle, incorporates two modified, commercially available, pulmonary valves for separating inspiratory and expiratory flows. The mask has a dead space of 30 cm3 and a flow resistance below 1 cmH2O . 1(-1) . s. The flexible mask is used to measure breath-by-breath respiratory variables over extended periods of time during rest and exercise.
mesh_terms: D000818:Animals; D004285:Dogs; D008397:Masks; D005082:Physical Exertion; D010827:Physiology / Q000295:instrumentation*; D012119:Respiration; D012146:Rest