... consumed during the recovery period, was independent of activity frequency (range 0.91–1.16 ml O2 g −1 ) and accounted for more than 80 % of the total metabolic cost when activity was performed intermittently. Lactate concentration was measured at rest, immediately after running and immediately after...

... cost of activity ( C act ), calculated by summing EEOC and EPOC and then dividing by the distance run, increased as both activity duration and intensity decreased. The values for C act ranged from 553 ml O 2 g −1 km −1 for a 15 s run at 25 % MAS to 43 ml O 2 g −1 km −1 for a 60 s run at 100 % MAS...