Critical cadence (CC), critical power (CP) and the work above CP (W') were determined from linear and hyperbolic modelling during skating on a slide board, in thirteen well trained speed skaters. Three to four trials to exhaustion were used for the fitting. CC from linear was higher than hyperbolic model (56.0 ± 4.8 vs 55.0 ± 4.5 push-offs/min, p= 0.01). No differences were found for CP and W' parameters from the models analysed.