Figure 4. Changes in forearm haemodynamics.
Increase in forearm haemodynamics from rest to steady-state exercise in control conditions (A) and during local adrenoreceptor blockade (B). In control conditions, older subjects had a significantly smaller increase in FBF (A) and FVC (B) from rest compared to young adults at both 15 and 25% MVC workloads. During adrenoreceptor blockade, older adults still had a significantly smaller increase in FBF (A) and FVC (B) from rest at both 15 and 25% MVC workloads. *P < 0.05 vs. Young.