Effect of A Slow Ramp Rate on Exercise Testing: A Healthy Volunteer Study

Effect of A Slow Ramp Rate on Exercise Testing: A Healthy Volunteer Study


Authored by Julian Martin Brown

Ramp rates for incremental ramp rate exercise testing are not standardised. The ramp rate may influence the values obtained during exercise testing. We compared a slow ramp rate (SR) (3watts/minute) to a fast ramp rate (FR) (20 watts/minute) in 8 fit non elite cyclists using cycle ergometry. We measured peak power ,oxygen consumption (VO2) at anaerobic threshold (AT) and maximum aerobic capacity (VO2 max). A lower mean peak work (369 Watts vs 406 watts, P=0.004), higher mean AT (42.1 ml/min/kg vs 38.6 ml/min/kg, p=0.16) , lower mean VO2 max (51.7 ml/min/kg vs 54 ml/min/kg p=0.25) and higher ratio of AT to VO2 max (0.82 vs 0.71 p = 0.03) were obtained using the SR protocol.

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