Type

Journal Article

Authors

Rose Anne Kenny
Roman Romero Ortuno
Diarmuid O'Shea
Brian Lawlor
Lisa Cogan

Subjects

Physiotherapy & Sport

Topics
orthostatic frail elderly physical activity age factors humans hypotension older people haemodynamics chi square distribution female ageing hypotension orthostatic physiopathology pilot projects heart rate orthostatic hypotension oh elderly cross sectional studies independent living health status male finometer gerontology ireland risk factors aged frail phenotype neuroscience blood pressure linear models multivariate analysis weight loss health status indicators hemodynamics

Orthostatic haemodynamics may be impaired in frailty. (2011)

Abstract Background: orthostatic hypotension (OH) is a physical sign that reflects a final common pathway of various forms of disordered physiology, which is the hallmark of geriatric frailty. Fried et al. recognise three increasing frailty phenotypes in older people, based on measurements of weight loss, exhaustion, grip strength, walking speed and physical activity. Orthostatic haemodynamics have not been considered as markers of frailty in older people. Objective: to classify a community sample of older people into three increasing frailty phenotypes and compare their orthostatic haemodynamics. Design: cross-sectional study. Setting: geriatric research clinic. Subjects: a total of 442 subjects (mean age 72, 72% females) without dementia or risk factors for autonomic neuropathy. Methods: the sample was classified according to modified Fried criteria. Orthostatic systolic blood pressure (SBP), diastolic blood pressure (DBP) and heart rate (HR) responses were monitored during an active stand with Finometer?. Results: one hundred and ninety-eight subjects (44.8%) were classified as non-frail, 213 (48.2%) as pre-frail, and 31 (7.0%) as frail. Across groups, there was a significant increasing gradient in baseline HR (P = 0.008) and decreasing gradients in Delta HR (i.e. maximum HR within 30 s?baseline HR) (P < 0.001) and maximum HR by 30 s (P < 0.001). On average, by 30 s after stand, non-frail subjects had recovered 98% of their baseline SBP, while pre-frail and frail subjects had recovered 95 and 92%, respectively (P for trend = 0.064). Conclusions: the orthostatic HR response and, to a lesser extent, SBP recoverability, appear impaired in frailty. Orthostatic haemodynamics may be useful markers of frailty.
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Full list of authors on original publication

Rose Anne Kenny, Roman Romero Ortuno, Diarmuid O'Shea, Brian Lawlor, Lisa Cogan

Experts in our system

1
Rose Anne Kenny
Trinity College Dublin
Total Publications: 252
 
2
Brian A. Lawlor
National College Ireland
Total Publications: 125