Clinical Exercise Tests
6-min walk test
Submaximal
Shuttle walk test
Incremental, maximal, symptom-limited
Exercise bronchoprovocation Exertional oximetry Cardiac slman Wasserman
Coupling of External Ventilation and Cellular Metabolism
Adaptations of Wasserman’s Gears
General Mechanisms of Exercise Limitation
Pulmonary
Ventilatory Respiratory muscle
dysfunction Impaired gas exchange
Cardiovascular
Reduced stroke volume Abnormal HR response Circulatory abnormality Blood abnormality
What is CPET?
Symptom-limited exercise test
Measure airflow, SpO2, and expired oxygen and carbon dioxide
Allows calculation of peak oxygen consumption, anaerobic threshold
Peripheral
Inactivity Atrophy Neuromuscular dysfunction Reduced oxidative capacity