multifrequency scale (MC-780MA P, TANITA, Tokyo, Japan) with subjects standing
barefoot both during pre- and post-race measurements. Brachial blood pressure
(BP) was measured by a trained observer using Omron HEM 705-CP semiautomatic
oscillometric recorder (Omron Health Care, Tokyo, Japan) with appropriate size
arm cuff supine after at least 5 min of rest. The average of two consecutive
readings of systolic BP (SBP) and diastolic BP (DBP) and heart rate (HR) was
used for the analysis. Central hemodynamics (aortic systolic blood pressure,
aoSBP; aortic diastolic blood pressure, aoDBP; aortic pulse pressure, aoPP) were
estimated using a high-fidelity micromanometer (SPC-301; Millar Instruments,
Houston, Texas, USA) applied to the radial artery and processed using a
SphygmoCor device (AtCor Medical, Sydney, Australia) calibrated from peripheral
BP. A single operator (BF) performed all the measurements both before and after
the marathon and an operator index > 85% was required for the measurements to
be included in the analysis.