Figure 1. Femoral blood flow before (PRE) and after (POST) double- and single-leg cycling in older (O60) and younger (U40) endurance-trained individuals. *, Main effect of age, comparisons made between all older and all younger subjects, regardless of modality. † , Main effect of modality, comparisons made between DL and SL cycling, regardless of age. ‡, Interaction effect between modality and age Values are presented as mean ± SD.