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There is a relatively flat power–cadence relationship between 60 and 100 rpm in fatigued subjects (Beelen and Sargeant 1991). Does this mean power output measured at 80–100rpm can be compared with power output at 40 rpm? Burnley (2010) says no, but Marcora and Staiano would argue that this is acceptable. There is published support for Burnley’s point. Acceleration at the end of a Wingate test yields a linear torque–angular velocity relationship, which predicts a parabolic power–cadence relationship in these fatigued subjects (MacIntosh et al. 2004). In fatigue, power output would be greater when measured at 75 rpm than when measured at 40 rpm.

We would argue that the results of Beelen and Sargeant (1991), which are remarkably similar to the results of Marcora and Staiano (2010a, b), are consistent with those of MacIntosh et al.(2004). The actual power output for the corresponding torque–cadence …