Why the study?
How do changes in blood flow and blood oxygen tension affect oxygen uptake in resting versus contracting dog skeletal muscle?
Population
in situ gastrocnemius-plantaris muscle group of the dog
Comparison
changes in blood flow and blood oxygen tension… vs resting muscle / baseline parameters
Design
Preclinical
Authors
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Caution against applying canine muscle findings to human oxygen delivery; leaves open capillary recruitment mechanisms in clinical exercise physiology.
How do changes in blood flow and blood oxygen tension affect oxygen uptake in resting versus contracting dog skeletal muscle?
Contracting skeletal muscle maintains oxygen uptake at lower critical oxygen tensions than resting muscle, likely due to increased functional capillary density.
Stainsby et al. (1964) studied this question.
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