FIGURE 2.
Effect of footwear (CON, gray; HCS, white) on the Oc of running (A) and blood [lactate] (B) during the incremental treadmill test. For panel A, the group mean running economy is provided for each speed where a valid measurement had been attained in both footwear conditions within-participant (n ≥ 20), with the sample size at each speed indicated. In panel B, the blood [lactate]–speed relationship is provided for a representative participant and the group mean speed at 3 mM blood [lactate] is also illustrated in the inset figure. The dotted lines in panel B indicate the speed corresponding to a blood [lactate] of 3 mM for CON and HCS. *Statistically significant between-condition difference (P < 0.05). #Statistically significant between condition difference in peak running speed (P < 0.05).