Giddings Madeleine L, Auringer Jacob P, Meier Nathan F, Lefferts Elizabeth C, Wang Chong, Kane-Barnese Lindsay
Department of Kinesiology, Concordia University Irvine, Irvine, California, USA.
Department of Biology, Concordia University Irvine, Irvine, California, USA.
Clin Physiol Funct Imaging. 2025 Jan;45(1):26-32. doi: 10.1111/cpf.12902. Epub 2024 Sep 13.
Brachial blood pressure (BP) is the current gold standard for BP assessment; however, measures of pulse wave velocity (PWV) and central blood pressure (CBP) may contribute uniquely to assessment of cardiovascular health status. As of yet, standards for assessment of CBP and PWV have not addressed the impact of hydration status on proper measurement. To understand the impact of hydration, PWV and CBP should be measured in a euhydrated and hypohydrated state.
Forty-three young, healthy participants (21 ± 2 years) completed a dehydration protocol utilizing moderate aerobic activity until they lost 1%-2% of their body weight. PWV and CBP were measured before and following the dehydration protocol. Linear regression was utilized to assess change in hydration status and change in PWV and CBP.
No significant relationships were observed between the change in hydration status (% body weight lost) and PWV (β = 0.05, p = 0.78) or central diastolic BP (β = -3.8, p = 0.10), however, a significant relationship was observed with central systolic BP (β = -5.0, p = 0.03).
In conclusion, the assessment of hydration status before measurement of CBP or PWV may not be necessary in young, healthy individuals.
肱动脉血压（BP）是目前血压评估的金标准；然而，脉搏波速度（PWV）和中心血压（CBP）的测量可能对心血管健康状况的评估有独特贡献。截至目前，CBP和PWV的评估标准尚未涉及水合状态对正确测量的影响。为了解水合作用的影响，应在水合正常和水合不足状态下测量PWV和CBP。
43名年轻健康参与者（21±2岁）完成了一项脱水方案，利用适度有氧运动直至体重减轻1%-2%。在脱水方案前后测量PWV和CBP。采用线性回归评估水合状态变化以及PWV和CBP的变化。
未观察到水合状态变化（体重减轻百分比）与PWV（β=0.05，p=0.78）或中心舒张压（β=-3.8，p=0.10）之间存在显著关系，然而，观察到与中心收缩压存在显著关系（β=-5.0，p=0.03）。
总之，在年轻健康个体中，测量CBP或PWV之前可能无需评估水合状态。
