Figure 4. Microvascular perfusion expressed as perfusion units (PU) across time points (T0 - T4). CC: pneumatic cold compression. Between-conditions (CC vs. sham) differences per time point are indicated by asterisks (* p < 0.05; ** p < 0.010; *** p < 0.001) ns: no significant. MMA, n = 40; young healthy adults, n = 20; Older, n = 20.