Andrew Mitchelmore1, Lee Stoner2, Danielle Lambrick3, Simon Jobson4, James Faulkner4. 1. Department of Sport & Exercise, University of Winchester, UK. Electronic address: Andrew.Mitchelmore@winchester.ac.uk. 2. Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, NC, USA. 3. Faculty of Health Sciences, University of Southampton, UK. 4. Department of Sport & Exercise, University of Winchester, UK.
Abstract
BACKGROUND AND AIMS: The between-day reliability of oscillometric pulse wave analysis has been demonstrated in a young, healthy population but not in an older sample. This study examined the between-day reliability of the SphygmoCor XCEL in individuals over 50 years. As blood pressure is measured in a range of postures and fasting states (supine/seated, fasted/non-fasted), this study also investigated the effect of these variables on central blood pressure and central systolic loading. METHODS: Fifty-one adults (m = 21; age 57 ± 6.4 y) were tested on three mornings in supine and seated conditions and in fasted and non-fasted states. Data was analysed as a whole and for normotensive (n = 25) and hypertensive participants (n = 26). RESULTS: SphygmoCor XCEL demonstrated strong reliability in the whole sample for central systolic and diastolic blood pressures, augmentation index (AIx) and AIx75 (ICC = 0.77-0.95). Significant interaction effects were observed in central diastolic blood pressure, central pulse pressure, augmentation index (AIx) and AIx75 (p < 0.05; ηp2 = 0.10-0.23). Fasting state had a greater influence on central pressures in a seated than supine posture, but a greater effect on central systolic loading measures in a supine posture. CONCLUSIONS: The SphygmoCor XCEL is a reliable tool to assess central haemodynamic variables in an older population. It would be pertinent for clinicians and researchers to record central measures in a supine posture to minimise the effects of food consumption. Conversely, the assessment of central systolic loading should occur in a seated condition to minimise the influence of varying fasting states.
BACKGROUND AND AIMS: The between-day reliability of oscillometric pulse wave analysis has been demonstrated in a young, healthy population but not in an older sample. This study examined the between-day reliability of the SphygmoCor XCEL in individuals over 50 years. As blood pressure is measured in a range of postures and fasting states (supine/seated, fasted/non-fasted), this study also investigated the effect of these variables on central blood pressure and central systolic loading. METHODS: Fifty-one adults (m = 21; age 57 ± 6.4 y) were tested on three mornings in supine and seated conditions and in fasted and non-fasted states. Data was analysed as a whole and for normotensive (n = 25) and hypertensiveparticipants (n = 26). RESULTS: SphygmoCor XCEL demonstrated strong reliability in the whole sample for central systolic and diastolic blood pressures, augmentation index (AIx) and AIx75 (ICC = 0.77-0.95). Significant interaction effects were observed in central diastolic blood pressure, central pulse pressure, augmentation index (AIx) and AIx75 (p < 0.05; ηp2 = 0.10-0.23). Fasting state had a greater influence on central pressures in a seated than supine posture, but a greater effect on central systolic loading measures in a supine posture. CONCLUSIONS: The SphygmoCor XCEL is a reliable tool to assess central haemodynamic variables in an older population. It would be pertinent for clinicians and researchers to record central measures in a supine posture to minimise the effects of food consumption. Conversely, the assessment of central systolic loading should occur in a seated condition to minimise the influence of varying fasting states.
Authors: Sabina Barrios-Fernandez; Eduardo Manuel Sosa-Sánchez; Jorge Carlos-Vivas; Laura Muñoz-Bermejo; Jesús Morenas-Martín; María Dolores Apolo-Arenas; Jose Carmelo Adsuar; Francisco Javier Domínguez-Muñoz Journal: Healthcare (Basel) Date: 2022-01-21
Authors: Andrew Mitchelmore; Lee Stoner; Danielle Lambrick; Lucy Sykes; Charlotte Eglinton; Simon Jobson; James Faulkner Journal: PLoS One Date: 2018-11-01 Impact factor: 3.240