Time course of brachial artery dilation following reactive hyperemia. Time course in 10-second intervals of brachial artery FMD expressed as percent difference from baseline diameter after upper arm cuff inflation (upper curve) and forearm cuff inflation (lower curve). Each point in the graphs represents an average of all data available in that time-point; the error bars represent one standard error to the mean.
Peretz et al. BMC Cardiovascular Disorders 2007 7:11 doi:10.1186/1471-2261-7-11