Key result
Maximal oxygen uptake was 16% greater on treadmill protocols compared to cycle ergometer protocols (21.4 vs 18.1 ml/kg/min; P<0.01), and ramp tests yielded the highest oxygen uptake to work rate ratio.
Why the study?
To compare the hemodynamic and gas exchange responses of ramp treadmill and cycle ergometer tests with standard clinical exercise protocols.
RCT (n=41)
Randomized order
Absolute Event Rate: 21.4% vs 18.1%
p-value: p=<0.01
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Ramp protocols may enhance adult exercise performance; leaves open need for confirmatory trials before adoption.
Myers et al. (1991) conducted an RCT in Chronic heart failure, coronary artery disease, and normal subjects (n=41). Ramp treadmill and cycle ergometer tests vs. Standard exercise protocols (Bruce, Balke, 25 W/stage, 50 W/stage) was evaluated on Maximal oxygen uptake (treadmill vs cycle ergometer protocols) (p=<0.01). Maximal oxygen uptake was 16% greater on treadmill protocols compared to cycle ergometer protocols (21.4 vs 18.1 ml/kg/min; P<0.01), and ramp tests yielded the highest oxygen uptake to work rate ratio.
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