Passive leg movement (PLM)-induced changes in leg blood flow (LBF) with age in women. A: second-by-second tracing of LBF (ml/min) at baseline (BL) and throughout 2 min of PLM. B: peak change in LBF from BL (ΔLBFpeak, ml/min); C: LBF area under the curve (AUC) for the first 60 s of PLM (LBFAUC, ml/min). Young, n = 10; old, n = 10. BL indicates the average of the 60 s just before initiation of PLM. Dashed line at 0 s indicates the start of 2 min of PLM. *P < 0.05, significantly different from supine posture; #P < 0.05; significantly different from young women. Values are means ± SE.