Gradual Versus Continuous Increase of Load in Ergometric Tests: Are the Results Comparable?

摘要

Standard exercise testing (ET) comprises progressive exercise provocation with cardiovascular monitoring. Exercise tolerance is estimated by workload. Cardiopulmonary exercise testing (CPX) is a non-invasive measurement of ventilator/ gas exchange which provides more accurate quantifications of cardiorespiratory fitness (CRF). Workload is usually increased stepwise in ET and continuously (ramp) in CPX. Our aim was to examine the comparability of the results. Thirty two healthy volunteers (17 females/15 males, age 26.8 ± 6.1 years, BMI 24.5 ± 3.0) underwent exercise testing on a bicycle ergometer up to maximum physical exhaustion; under ramp protocol (CPX) and 2-7 days later with a stepwise increase of workload (ET).