Blood pressure and cognitive function: the role of central aortic and brachial pressures

Central (aortic) blood pressures differ from brachial pressures and may be more relevant to the study of cognitive function, given that blood is delivered to the brain through the central large arteries. Pulse-pressure amplification reflects the augmentation of blood pressure between the central and peripheral arteries, which diminishes with aging. We aimed to determine the association between central blood pressure and cognitive function in independently living adults aged 20 to 82 years (N = 493). In adjusted regression models, higher central systolic pressure and higher central pulse pressure were each associated with poorer processing speed, Stroop processing, and recognition memory. Lower amplification was associated with poorer Stroop processing, working memory, and recognition memory. Higher brachial systolic pressure and brachial pulse pressure were both associated with poorer Stroop processing. In summary, central pressures and amplification were sensitive indicators of cognitive aging, predicting aspects of cognitive performance not predicted by brachial blood pressure.

Apuntes básicos sobre programación de autómatas. OMRON : C20H.

Ejemplar fotocopiado

Evaluation of the Omron MX3 Plus monitor for blood pressure measurement in adolescents

This study analyzed the accuracy/agreement of the Omron MX3 monitor on 165 adolescents. Blood pressure was measured by the automatic monitor connected in Y with the mercury column (three consecutive and simultaneous measures). The independent measures were analyzed, and the mean differences between systolic and diastolic measures for both methods were calculated and compared with British Hypertension Society (BHS) and Association for the Advancement of Medical Instrumentation (AAMI) criteria. The automatic monitor received the highest degree of BHS recommendations for systolic and diastolic blood pressures according to the BHS. The median (25th and 75th) difference between the observer and the monitor measurements was -2 (-6 and 1) mmHg for systolic and 0 (-3 and1) mmHg for diastolic pressures. The monitor also satisfies the AAMI standard for the studied population. In conclusion, the Omron MX3 Plus monitor can be considered reliable and valid for clinical practice and is in accordance with BHS and AAMI criteria.

Validação do monitor de medida de pressão arterial Omron HEM 742 em adolescentes

FUNDAMENTO: A medida precisa da pressão arterial é fundamental para a investigação científica ou decisão clínica. Nesse sentido, é importante verificar valores fornecidos por equipamentos eletrônicos. OBJETIVO: Validar o monitor Omron HEM 742 de medida de pressão arterial em adolescentes, segundo os critérios sugeridos pela British Hypertension Society. MÉTODOS: Participaram do estudo 150 adolescentes com idades entre 10 e 16 anos. O monitor automático Omron HEM 742 foi conectado em Y com equipamento auscultatório de coluna de mercúrio, e realizaram-se três avaliações simultâneas, calculando-se as diferenças entre os dois equipamentos. Para verificar a relação entre ambos, utilizaram-se o coeficiente de correlação intraclasse e a plotagem de Bland-Altman (concordância). A especificidade e a sensibilidade do aparelho foram determinadas pela curva ROC. RESULTADOS: A comparação entre as medidas acusou uma diferença menor ou igual a 5 mmHg em 67,3% dos valores sistólicos e 69,3% dos valores diastólicos; uma diferença menor ou igual a 10 mmHg ocorreu em 87,3% e 90,6% dos valores sistólicos e diastólicos, respectivamente; e uma diferença menor ou igual a 15 mmHg em 96,6% dos valores sistólicos e 97,3% dos diastólicos. Esses resultados indicam grau A segundo o protocolo da British Hypertension Society. Observou-se ainda elevada concordância nos valores obtidos por meio do monitor automático, e verificou-se que esse equipamento é capaz de identificar a presença ou a ausência da pressão arterial elevada. CONCLUSÃO: O monitor Omron HEM 742 mostrou-se válido para medidas de pressão arterial em adolescentes, conforme os critérios sugeridos pela British Hypertension Society.

Effectiveness of in-office blood pressure measurement by eye care practitioners in early detection and management of hypertension

AIM To investigate the number of hypertensive patients, the optometrist is able to identify by routinely taking blood pressure (BP) measurements for patients in "at -risk" groups, and to sample patients' opinions regarding in -office BP measurement. Many of the optometrists in Saudi Arabia practice in optical stores. These stores are wide spread, easily accessible and seldom need appointments. The expanding role of the optometrist as a primary health care provider (PHCP) and the increasing global prevalence of hypertension, highlight the need for an integrated approach towards detecting and monitoring hypertension. METHODS Automated BP measurements were made twice (during the same session) at five selected optometry practices using a validated BP monitor (Omron M6) to assess the number of patients with high BP (HBP) - in at -risk groups -visiting the eye clinic routinely. Prior to data collection, practitioners underwent a two-day training workshop by a cardiologist on hypertension and how to obtain accurate BP readings. A protocol for BP measurement was distributed and retained in all participating clinics. The general attitude towards cardiovascular health of 480 patients aged 37.2 (依12.4)y and their opinion towards in-office BP measurement was assessed using a self -administered questionnaire. RESULTS A response rate of 83.6% was obtained for the survey. Ninety -three of the 443 patients (21.0% ) tested for BP in this study had HBP. Of these, (62 subjects) 67.7% were unaware of their HBP status. Thirty of the 105 subjects (28.6%) who had previously been diagnosed with HBP, still had HBP at the time of this study, and only 22 (73.3%) of these patients were on medication. Also, only 25% of the diagnosed hypertensive patients owned a BP monitor. CONCLUSION Taking BP measurements in optometry practices, we were able to identify one previously undiagnosed patient with HBP for every 8 adults tested. We also identified 30 of 105 previously diagnosed patients whose BP was poorly controlled, twenty-two of whom were on medication. The patients who participated in this study were positively disposed toward the routine measurement of BP by optometrists.

Analysis of physical activity in emmetropic and myopic university students during semester and holiday periods: A pilot study

Background Previous studies (mostly questionnaire-based in children) suggest that outdoor activity is protective against myopia. There are few studies on young adults investigating both the impact of simply being outdoors versus performing physical activity. The aim was to study the relationship between the refractive error of young adults and their physical activity patterns. Methods Twenty-seven university students, aged 18 to 25 years, wore a pedometer (Omron HJ720ITE) for seven days both during the semester and holiday periods. They simultaneously recorded the type of activity performed, its duration, the number of steps taken (from the pedometer) and their location (indoors/outdoors) in a logbook. Mean spherical refractive error was used to divide participants into three groups (emmetropes: +1.00 to -0.50 D, low myopes: -0.62 to -3.00 D, higher myopes: -3.12 D or greater myopia). Results There were no significant differences between the refractive groups during the semester or holiday periods; the average daily times spent outdoors, the duration of physical activity, the ratio of physical activity performed outdoors to indoors and amount of near work performed were similar. The peak exercise intensity was similar across all groups: approximately 100 steps perminute, a brisk walk. Up to one-third of all physical activity was performed outdoors. There were some significant differences in activities performed during semester and holiday times. For example, lowmyopes spent significantly less time outside (49 ± 47 versus 74 ± 41 minutes, p = 0.005) and performed less physical activity (6,388 ± 1,747 versus 6,779 ± 2,746 steps per day; p = 0.03) during the holidays compared to during semester. Conclusions The fact that all groups had similar low exercise intensity butmany were notmyopic suggests that physical activity levels are not critical. There were differences in the activity patterns of lowmyopes during semester and holiday periods. This study highlights the need for a larger longitudinal-based study with particular emphasis on how discretionary time is spent.

Prática desportiva, qualidade de vida, violência escolar, composição e satisfaçação corporal dos adolescentes algarvios

Tese de douoramento, Psicologia, Faculdade de Ciências Humanas e Sociais, Universidade do Algarve, 2014

Presión arterial en preescolares de la localidad de Usaquén en Bogotá

Introducción: La hipertensión arterial es un problema de salud pública tanto en países industrializados como en vía de desarrollo. Su prevalencia en la infancia viene en aumento por lo que es relevante determinarla en niños preescolares a nivel local. Objetivo: Determinar la prevalencia de hipertensión arterial en niños de tres a cinco años de una cohorte de 14 hogares infantiles del ICBF de la localidad de Usaquén en Bogotá. Materiales y métodos: Se realizó un estudio de corte transversal analítico, utilizando la base de datos de un ensayo aleatorizado y controlado del año 200913, y se evaluaron las cifras de tensión arterial de acuerdo a sexo, edad, talla y su correlación con el IMC con un nivel de confianza del 95% y precisión del 1%. Se calcularon las medias, desviaciones estándar, percentiles y prevalencia. Resultados: Se obtuvo una muestra de 1035 casos, encontrándose una prevalencia de 4,5% de HTA sistólica, 10,4% de diastólica, ambas en estadio I; teniendo en cuenta tanto sistólica como diastólica, fue de 11,6% en estadio I. Se determinaron los valores de presión arterial sistólica y diastólica en cuartiles de acuerdo a edad, sexo y talla. El coeficiente de correlación entre el IMC y los niveles de presión arterial sistólica y diastólica fueron de 0.0992 y 0.0362 respectivamente. Conclusión: La prevalencia de HTA general fue de 11,6%, predominando la diastólica en estadio I en niños preescolares. No se encontró correlación entre el IMC y las cifras de tensión arterial sistólica y diastólica.

Simulació d'un magatzem automàtic amb Citect Scada

Creació d’una simulació amb Scada d’un magatzem automàtic. Aquest funcionarà amb un autòmat Omron CQ1M, i en el nostre cas l’autòmat serà qui controlarà tot el procés

Estimativa da composição corporal e análise de concordância entre analisadores de impedância bioelétrica bipolar e tetrapolar

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Análise de fatores biológicos de indivíduos com 80 anos ou mais e que apresentam relação com suas longevidades

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Comparação de dois métodos de profilaxia dental: avaliação da pressão arterial e do conforto do paciente. Ensaio clínico controlado e randomizado

GOALS: This research evaluated the change in arterial pressure before and after two procedures of dental prophylaxis: Jet system baking soda and conventional prophylaxis and patient's opinion regarding the comfort of each one. MATERIAL AND METHOD: Were selected 32 patients with age between 18 to 30 years old, who need prophylaxis to remove biofilm and were subjected to three different types of treatment: sodium bicarbonate jet (G1), prophylaxis conventional (G2) and placebo (G3) at intervals of one month between them. Patients were divided randomly. Arterial pressure was measured by wrist digital Omron HEM – 6111. The measurements were realized in four times: before the prophylaxis, immediately the end of procedure, 15 and 30 minutes after finished of treatment. Patient comfort was measured by a Visual Analog Scale (VAS) after the end of the treatment. The data were analyzed using the variance test. The results showed that there was statistically significant difference to the comfort of the procedures. RESULTS: There was a statistically significant difference to the comfort of the procedures, and G2 and G3 better than G1. Regarding the variation of arterial pressure there was no statistically significant difference between groups. CONCLUSIONS: The methods of prophylaxis no effect on arterial pressure, but conventional prophylaxis is more comfortable than others treatments

Sistemas de Control Automático. Práctica 2 (curso 2010-2011)

Práctica 2 de sistemas de control automático. Control de velocidad mediante el autómata CP1L y el variador MX2 de Omron.