Figure 6. Group mean muscle oxygen uptake (○) and pulmonary oxygen uptake (•) in the recovery from low-intensity exercise.

The continuous vertical line represents the end of exercise. A illustrates the ‘raw’ data whereas in B the pulmonary data have been ‘time-aligned’ to the muscle data by moving the data back by a time equal to the time delay preceding the phase II decrease in pulmonary oxygen uptake (dashed vertical line).