Figure 4
The arterial-venous difference in blood levels of lactate in the legs and arms during the first and second sessions of diagonal stride skiing and the intervening double poling at 90% VO 2max/peak . The values presented are means ± SD. The P-values, effect size ( p η2), and observed power obtained with the two-way ANOVA (skiing technique × extremity) are presented. *P < 0.05 in comparison to DP and ††† P < 0.001 in comparison to the legs.