Cardiovascular Response During Postural Change in the Elderly

1990 ◽  
Vol 45 (1) ◽  
pp. M20-M25 ◽  
Author(s):  
I. B. Goldstein ◽  
D. Shapiro
Keyword(s):  
Cardiovascular Response ◽  
The Elderly ◽  
Postural Change

scholarly journals Refined Multiscale Fuzzy Entropy to Analyse Post-Exercise Cardiovascular Response in Older Adults With Orthostatic Intolerance

Entropy ◽  
2018 ◽  
Vol 20 (11) ◽  
pp. 860 ◽  
Author(s):  
Marcos Hortelano ◽  
Richard Reilly ◽  
Francisco Castells ◽  
Raquel Cervigón
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Orthostatic Intolerance ◽  
Cardiovascular Response ◽  
Recovery Period ◽  
The Elderly ◽  
Fuzzy Entropy ◽  
Post Exercise ◽  
And Gender ◽  
Risk Factors For Falls

Orthostatic intolerance syndrome occurs when the autonomic nervous system is incapacitated and fails to respond to the demands associated with the upright position. Assessing this syndrome among the elderly population is important in order to prevent falls. However, this problem is still challenging. The goal of this work was to determine the relationship between orthostatic intolerance (OI) and the cardiovascular response to exercise from the analysis of heart rate and blood pressure. More specifically, the behavior of these cardiovascular variables was evaluated in terms of refined composite multiscale fuzzy entropy (RCMFE), measured at different scales. The dataset was composed by 65 older subjects, 44.6% (n = 29) were OI symptomatic and 55.4% (n = 36) were not. Insignificant differences were found in age and gender between symptomatic and asymptomatic OI participants. When heart rate was evaluated, higher differences between groups were observed during the recovery period immediately after exercise. With respect to the blood pressure and other hemodynamic parameters, most significant results were obtained in the post-exercise stage. In any case, the symptomatic OI group exhibited higher irregularity in the measured parameters, as higher RCMFE levels in all time scales were obtained. This information could be very helpful for a better understanding of cardiovascular instability, as well as to recognize risk factors for falls and impairment of functional status.

The cardiovascular response to postural change as a function of race

1995 ◽  
Vol 39 (2-3) ◽  
pp. 173-186 ◽  
Author(s):  
Iris B. Goldstein ◽  
David Shapiro
Keyword(s):  
Cardiovascular Response ◽  
Postural Change

scholarly journals Effects of Lifelong Endurance Exercise on Cardiovascular Response to Orthostatic Stress in The Elderly Athletes

2012 ◽  
Vol 26 (S1) ◽  
Author(s):  
Naoki Fujimoto ◽  
Graeme Carrick-Ranson ◽  
Paul S Bhella ◽  
Jeffrey L Hastings ◽  
Shigeki Shibata ◽  
...  
Keyword(s):  
Endurance Exercise ◽  
Cardiovascular Response ◽  
The Elderly ◽  
Orthostatic Stress ◽  
Elderly Athletes

scholarly journals Análise dos Índices Espectrais da Variabilidade da Frequência Cardíaca Durante a Mudança Postural de Idosos Hipertensos

2018 ◽  
Vol 20 (2) ◽  
pp. 146 ◽  
Author(s):  
Ariane Hidalgo Mansano Pletsch ◽  
Alderico Rodrigues De Paula Júnior ◽  
Nelson José Freitas da Silveira ◽  
Walkiria Shimoaya-Bittencourt ◽  
Rodrigo Aléxis Lazo Osório
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
High Risk ◽  
Low Frequency ◽  
The Elderly ◽  
Prognostic Indicator ◽  
Cardiac Risk ◽  
Control Group ◽  
Postural Change ◽  
Healthy Elderly

ResumoO estudo da Variabilidade da Frequência Cardíaca (VFC) tem permitido, de forma não invasiva, avaliar o Sistema Nervoso autônomo e o risco cardíaco, sendo um importante indicador prognóstico de doenças cardíacas e sistêmicas. O objetivo foi avaliar e comparar a VFC no domínio da frequência e do tempo de idosos com hipertensão arterial e de idosos saudáveis frente à mudança postural de repouso para sentado. Foram estudados 18 indivíduos hipertensos e 18 indivíduos saudáveis na faixa etária de 60 a 85 anos. A frequência cardíaca e os intervalos R-R foram coletados pelo instrumento Polar S810i durante 1200 s nas posturas supina e sentada. A VFC foi analisada no domínio do tempo - DT pelas variáveis: Índice raiz quadrada da média dos quadrados das diferenças entre intervalos R-R (iR-R) sucessivos (RMSSD), desvio padrão da média dos iR-R normais em ms - SDNN e PNN50%, que traduz a diferença de duração superior a 50 milissegundos, e no domínio da frequência, pelas bandas de alta (AF) e baixa frequência (BF), e da razão BF/AF. Ocorreu alteração na VFC dos idosos tanto no grupo controle e hipertenso, no entanto não houve mudanças significativas na VFC entre os grupos estudados. Ao analisar a VFC no domínio do tempo, o estudo mostrou que a amostragem estudada apresenta alto risco cardíaco ao analisar o parâmetro SDNN. Conclui-se que a mudança postural alterou a VFC desses idosos, tanto no grupo controle e hipertenso, no entanto não houve mudanças significativas na VFC entre as fases dos grupos estudados e obteve-se como resultado alto risco cardíaco ao avaliar o parâmetro SDNN em ambos os grupos.Palavras-chave: Hipertensão. Idoso. Frequência Cardíaca.AbstractThe study of heart rate variability (HRV) allows noninvasive way to evaluate the autonomic nervous system and cardiac risk, and an important prognostic indicator of heart and systemic diseases disease. The objective was to evaluate and compare the HRV in the frequency and duration of elderly patients with hypertension and healthy elderly versus postural change in the condition of rest. The study comprised 18 hypertensive individuals and 18 healthy subjects aged 60 to 85 years, both sexes. Heart rate and RR intervals were collected by the instrument Polar S810i during 1200 s in supine and sitting postures. HRV was analyzed in time domain indices SDNN, RMSSD and PNN50% and the frequency domain, by bands of high (AF) and low frequency (LF), and the ratio LF / HF. Intergroup intra-analyes were used as well as the tests of normality D’Augustine as a criterion for parametric groups. There was change in heart rate variability of both the elderly and hypertensive patients in the control group, however there were no significant changes in studied HRV intergroups . In the area of the time it was found that the sampling shows high-risk cardiac parsing the parameter SDNN. The results showed that the change posture changed the variability of heart rate in the control group and hypertension, however there were no significant changes in HRV among the phases of the groups and a high risk was obtained as a result of the parameter SDNN for both heart the groups.Keywords: Hypertension. Aged. Heart Rate.

Feasibility of Mild Traumatic Brain Injury Assessment Based on Cardiovascular Response to Postural Change

2020 ◽  
Vol 35 (5) ◽  
pp. E422-E428
Author(s):  
Katie N. Russell ◽  
Edward A. Preble ◽  
Meghan Hegarty-Craver ◽  
Jacques P. Arrieux ◽  
Wesley R. Cole ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Mild Traumatic Brain Injury ◽  
Cardiovascular Response ◽  
Postural Change ◽  
Injury Assessment

scholarly journals (r)Alpha Lipoic Acid Is a Safe, Effective Pharmacologic Therapy of Chronic Orthostatic Hypotension Associated with Low Sympathetic Tone

2019 ◽  
Vol 28 (03) ◽  
pp. 188-193 ◽  
Author(s):  
Gary L. Murray ◽  
Joseph Colombo
Keyword(s):  
Side Effects ◽  
Orthostatic Hypotension ◽  
Lipoic Acid ◽  
Orthostatic Intolerance ◽  
The Elderly ◽  
Pharmacologic Therapy ◽  
Postural Change ◽  
Glucose Levels ◽  
Treatment Side Effects

Chronic orthostatic hypotension (OH), affecting 10 to 30% of the elderly, is associated with falls, and increased morbidity and mortality. Current pharmacologic therapy can cause or worsen hypertension and fluid retention. (r)α lipoic acid (ALA), a powerful natural antioxidant, avoids those complications and may assist management of chronic neurogenic orthostatic hypotension (NOH). The purpose of this study is to demonstrate improvement in the symptoms of orthostatic dysfunction with r-ALA, including improved sympathetic (S) and blood pressure (BP) responses to head-up postural change (standing).A cohort of 109 patients with low S tone upon standing was detected using the ANX −3.0, Autonomic Monitor, ANSAR Medical Technologies, Inc., Philadelphia, PA. From the cohort, 29 patients demonstrated NOH (change in (∆) standing BP ≥ −20/–10 mm Hg); 60 patients demonstrated orthostatic intolerance (OI, ∆ standing systolic BP between –6 and –19 mm Hg). These 89 were given ALA orally: either 590 to 788 mg (r)ALA or 867 to 1,500 mg of the less expensive 50 to 50% mixture (r)ALA and inactive (s)ALA. Changes in their S and parasympathetic (P) tone, and BPs, were compared with 20 control patients during mean follow-up of 2.28 years.Nineteen of 29 (66%) NOH patients responded with a ∆ standing BP from –28/–6 mm Hg to 0/+2 mm Hg. Forty of 60 (67%) of patients with OI responded with a ∆ standing BP of –9/+1 mm Hg to +6/+2 mm Hg. Although all patients treated with ALA increased S tone, the ∆ BP depended upon the pretreatment of S tone. Those with the lowest S tone responded the least well. The only treatment side effects were nausea, intolerable in only 5%. Nausea improved with routine gastrointestinal medications. Glucose levels improved in the 28% of patients who were diabetic. Also, resting hypertension improved. Control patients had no ∆ BP and no increase in S tone.(r)ALA improves S-, and BP, responses to head-up postural change, and thereby NOH/OI, in a majority of patients without causing harmful side effects.

Cell surface changes during aging of human bladder epithelium examined by lectin probes and SEM

1990 ◽  
Vol 48 (3) ◽  
pp. 966-967
Author(s):  
J. Jacob ◽  
M.F.M. Ismail
Keyword(s):  
The Elderly ◽  
Ultrastructural Changes ◽  
Pokeweed Mitogen ◽  
Asymmetric Structure ◽  
Luminal Surface ◽  
Bladder Epithelium ◽  
Aldehyde Groups ◽  
Cell Surface Changes ◽  
Phosphate Buffered Saline ◽  
Surface Changes

Ultrastructural changes have been shown to occur in the urinary bladder epithelium (urothelium) during the life span of humans. With increasing age, the luminal surface becomes more flexible and develops simple microvilli-like processes. Furthermore, the specialised asymmetric structure of the luminal plasma membrane is relatively more prominent in the young than in the elderly. The nature of the changes at the luminal surface is now explored by lectin-mediated adsorption visualised by scanning electron microscopy (SEM).Samples of young adult (21-31 y old) and elderly (58-82 y old) urothelia were fixed in buffered 2% glutaraldehyde for 10 m and washed with phosphate buffered saline (PBS) containing Ca++ and Mg++ at room temperature. They were incubated overnight at 4°C in 0.1 M ammonium chloride in PBS to block any remaining aldehyde groups. The samples were then allowed to stand in PBS at 37°C for 2 h before incubation at 37°C for 30 m with lectins. The lectins used were concanavalin A (Con A), wheat germ agglutinin (WGA), phytohaemagglutinin (PHA) and pokeweed mitogen (PWM) at a concentration of 500 mg/ml in PBS at pH 7.A.

The effect of dental geriatric curricula on attitudes toward the elderly

1988 ◽  
Vol 52 (9) ◽  
pp. 516-518 ◽  
Author(s):  
J Mann ◽  
TJ Bomberg ◽  
JM Holtzman ◽  
DB Berkey
Keyword(s):  
The Elderly

Effects of Physical Training on Stuttering

1968 ◽  
Vol 11 (4) ◽  
pp. 767-776 ◽  
Author(s):  
B. Don Franks ◽  
Elizabeth B. Franks
Keyword(s):  
College Students ◽  
Group Therapy ◽  
Physical Training ◽  
Cardiovascular Response ◽  
Training Group ◽  
Physical Stress ◽  
Submaximal Exercise ◽  
Endurance Running ◽  
Response To Exercise

Eight college students enrolled in group therapy for stuttering were divided into two equal groups for 20 weeks. The training group supplemented therapy with endurance running and calisthenics three days per week. The subjects were tested prior to and at the conclusion of the training on a battery of stuttering tests and cardiovascular measures taken at rest, after stuttering, and after submaximal exercise. There were no significant differences (0.05 level) prior to training. At the conclusion of training, the training group was significandy better in cardiovascular response to exercise and stuttering. Although physical training did not significantly aid the reduction of stuttering as measured in this study, training did cause an increased ability to adapt physiologically to physical stress and to the stress of stuttering.

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