Nevertheless, the selected reference value of 0.5 L/min (variation in the ventilation per min) might be too narrow for graded exercise tests
The study measured the women's cardiovascular fitness based on an exercise test
All participants performed an incremental cycle ergometer exercise test
until exhaustion to determine exercise intensities for the subsequent continuous cycle ergometer exercise tests
Using a series of 4-5 min intermittent maximal exercise tests
, they calculated the difference between C[O.sub.2] and the product of a metabolic respiratory quotient constant and V[O.sub.2] (C[O.sub.2] - V[O.sub.2] x 0.75).
For exercise test
, Bruce protocol was applied and all tests' sessions were in the morning.
Cardiorespiratory fitness was evaluated using a graded arm crank exercise test
performed at baseline and immediately after the training program.
Participants were informed not to consume food or drink (except water) within two to 3 hours of the exercise tests
and avoid caffeinated products for 6 hours prior to the exercise test
The subjects underwent one maximal and two submaximal cardiopulmonary treadmill exercise tests
24 to 72 hrs apart.
Incremental exercise tests
are relatively accessible for the evaluation of COPD patients but, when coupled to physiological measurements, they require expensive equipment, which needs regular maintenance and calibration and qualified staff to overview the tests .
With institution ethical approval, trained endurance athletes, (n = 12) performed three incremental cardiopulmonary exercise tests
to volitional exhaustion, on three different days at least 1 week apart.
All subjects performed three 7-minute bicycle exercise tests
at workloads of 20 W and 30 W
His previous and current research is related to the reliability and validity of exercise tests
and clinical trials of exercise training for people with diabetes.