Physiologic Tests to Differentiate Dogs with Different Functional Capabilities.
Abstract
The study was undertaken to develop and evaluate physiologic tests that could be used to differentiate dogs assigned to various experimental groups. More than 75 different animals weighing 8-26 kg were used; most were males. To physically stress the animal, a 21-min, 7-stage, submaximal treadmill test was developed, standardized, and used. The test started at 4.8 km/hr at 0% grade and terminated at 6.4 km/hr on a 20% grade. Dogs were assigned to four groups with different energy requirements: trained, nontrained, trained-detrained, or nontrained confined to smaller cages. Measurements associated with exercise heart rates, postexercise lactic acid levels, changes in heart rate after atropine and propranolol injections, increases in blood pressures after norepinephrine injections, the size of fat cells, and muscle cytochrome oxidase activity could effectively differentiate nontrained and trained dogs. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1974
- Accession Number
- AD0783642
Entities
People
- Charles M. Tipton
- Howard H. Erickson
Organizations
- University of Iowa