286 research outputs found
El sector del fitness en España; análisis del gimnasio low-cost y los centros de electroestimulación integral
The evolution of the fitness sector is a constant that has been repeating itself for years. New trends and business models are emerging in order to gain a foothold in the sector or attached on it. Low-cost gyms and whole body electromyostimulation centers currently present significant growth in Spain.The aim of this study is to analyze this type of centers and reasoning the possible impact that they may have on the fitness sector.In both cases, the growth and expansion of these centers has turned out to be fast and constant, and it is expected to be continued like that during the next year. The increase presence of these centers has an impact both in the rest of companies of the sector an in the final user. Different points and observed factors may influence the consolidation, permanence an stability of both centers.La evolución del sector del fitness en una constante que lleva repitiéndose durante años. Nuevas tendencias y modelos de negocio surgen con el fin de hacerse un hueco en el sector o afianzarse en él. Los gimnasios low-cost y los centros de electroestimulación integral destacan por tener un gran crecimiento en España.El objetivo de este estudio es analizar este tipo de centros y razonar las posibles repercusiones que pueden tener en el sector del fitness.En ambos casos, el crecimiento y expansión ha resultado ser rápido y constante y se espera que siga siendo asà durante los próximos años. La mayor presencia de estos centros repercute tanto en el resto de empresas del sector como en el usuario final. Diferentes puntos y factores observados pueden influir en la consolidación, permanencia y estabilidad de ambos centros
Intra-seasonal variability of extreme boreal stratospheric polar vortex events and their precursors
This is the author accepted manuscript. The final version is available from Springer Verlag via the DOI in this record.The dynamical variability of the boreal stratospheric polar vortex has been usually analysed considering the
extended winter as a whole or only focusing on December, January and February. Yet recent studies have
found intra-seasonal differences in the boreal stratospheric dynamics. In this study, the intra-seasonal
variability of anomalous wave activity preceding polar vortex extremes in the Northern Hemisphere is
examined using ERA-Interim reanalysis data. Weak (WPV) and strong (SPV) polar vortex events are grouped
into early, mid- or late winter sub-periods depending on the onset date. Overall, the strongest (weakest) wave-
activity anomalies preceding polar vortex extremes are found in mid- (early) winter. Most of WPV
(SPV) events in early winter occur under the influence of east (west) phase of the Quasi-Biennial Oscillation
20 (QBO) and an enhancement (inhibition) of wavenumber-1 wave activity (WN1). Mid- and late winter WPV
21 events are preceded by a strong vortex and an enhancement of WN1 and WN2, but the spatial structure of the
anomalous wave activity and the phase of the QBO are different. Prior to mid-winter WPVs the enhancement
of WN2 is related to the predominance of La Niña and linked to blockings over Siberia. Mid-winter SPV
events show a negative phase of the Pacific-North America pattern that inhibits WN1 injected into the
stratosphere. This study suggests that dynamical features preceding extreme polar vortex events in mid-winter
should not be generalized to other winter sub-periods.This
work was supported by the Spanish Ministry of Economy and Competitiveness (grant number CGL2012-
34997). BA is supported by the Natural Environment Research Council (grant number NE/M006123/1). MA
acknowledges funding from the NASA ACMAP program
Differences in trajectories and predictive factors of cognition over time in a sample of cognitively healthy adults, in zaragoza, spain
Great inter-individual variability has been reported in the maintenance of cognitive function in aging. We examined this heterogeneity by modeling cognitive trajectories in a population-based longitudinal study of adults aged 55+ years. We hypothesized that (1) distinct classes of cognitive trajectories would be found, and (2) between-class differences in associated factors would be ob-served. The sample comprised 2403 cognitively healthy individuals from the Zaragoza Dementia and Depression (ZARADEMP) project, who had at least three measurements of the Mini-Mental State Examination (MMSE) in a 12-year follow-up. Longitudinal changes in cognitive functioning were modeled using growth mixture models (GMM) in the data. The best-fitting age-adjusted model showed 3 distinct trajectories, with 1-high-to-moderate (21.2% of participants), 2-moderate-stable (67.5%) and, 3-low-and-declining (9.9%) cognitive function over time, respectively. Compared with the reference 2-trajectory, the association of education and depression was significantly different in trajectories 1 and 3. Instrumental activities of daily living (iADLs) were only associated with the declining trajectory. This suggests that intervention strategies should be tailored specifically to individuals with different trajectories of cognitive aging, and intervention strategies designed to maintain cognitive function might be different from those to prevent decline. A stable cognitive performance (‘successful cognitive aging’) rather than a mild decline, might be more ‘normal’ than generally expected
Response of Arctic ozone to sudden stratospheric warmings
Sudden stratospheric warmings (SSWs) are the main source of
intra-seasonal and interannual variability in the extratropical stratosphere.
The profound alterations to the stratospheric circulation that accompany such
events produce rapid changes in the atmospheric composition. The goal of this
study is to deepen our understanding of the dynamics that control changes of
Arctic ozone during the life cycle of SSWs, providing a quantitative analysis
of advective transport and mixing. We use output from four ensemble members
(60Â years each) of the Whole Atmospheric Community Climate Model version 4
performed for the Chemistry Climate Model Initiative and also use reanalysis
and satellite data for validation purposes. The composite evolution of ozone
displays positive mixing ratio anomalies of up to 0.5–0.6 ppmv above 550 K
( ∼  50 hPa) around the central warming date and negative anomalies
below (−0.2 to −0.3 ppmv), consistently in observations, reanalysis, and
the model. Our analysis shows a clear temporal offset between ozone eddy
transport and diffusive ozone fluxes. The initial changes in ozone are mainly
driven by isentropic eddy fluxes linked to enhanced wave drag responsible for
the SSW. The recovery of climatological values in the aftermath of SSWs is
slower in the lower than in the upper stratosphere and is driven by the
competing effects of cross-isentropic motions (which work towards the
recovery) and isentropic irreversible mixing (which delays the recovery).
These features are enhanced in strength and duration during sufficiently deep
SSWs, particularly those followed by polar-night jet oscillation (PJO)
events. It is found that SSW-induced ozone concentration anomalies below
600 K ( ∼  40 hPa), as well as total column estimates, persist around
1 month longer in PJO than in non-PJO warmings.</p
Patient information after hospitalization improves humanistic care in intensive care units
Introduction The purpose of the study was to assess the prognosis value of pro-adrenomedullin (pADM), C-reactive protein (CRP) and procalcitonin (PCT), lactate (LT), albumin (ALB), cholesterol (CHOL), white blood cell (WBC) and severity score in patients with severe sepsis or septic shock.
Methods A prospective, observational study in adult patients with severe sepsis or septic shock in a polyvalent ICU. Demographics, severity scores (APACHE II and SOFA) and all of the biomarkers were
studied within 24+ hours from septic shock onset. Descriptive and comparative statistical analysis was performed using the statistical software packages SPSS v.15 and MedCalc® 9.2.1.0. Conclusion The protein pADM, LT and ALB showed good prognosis
accuracy when measured on admission of septic patients to the ICU.Ye
Anxiety and risk of vascular dementia in an elderly community sample: The role of sex
Background: To assess the association between anxiety and risk of vascular dementia (VaD), as well as potential sex differences, in a community-based cohort.
Methods: A random sample of 4057 dementia-free community participants aged 55 or older, from the longitudinal, community-based Zaragoza Dementia and Depression Project (ZARADEMP) study were followed for 4.5 years. Geriatric Mental State B (GMS)-Automated Geriatric Examination for Computer Assisted Taxonomy (AGECAT) was used for the assessment and diagnosis of anxiety, and a panel of research psychiatrists diagnosed the incident cases of VaD according to DSM-IV (Diagnostic and Statistical Manual of mental disordes). Multivariate survival analysis with competing risk regression model was performed.
Results: In men, the incidence rate of VaD was significantly higher among anxiety subjects compared with non-anxiety subjects (incidence rate ratio (IRR) (95% confidence interval (CI)): 3.24 (1.13–9.35); p = 0.029), and no difference was observed in women (IRR (95%CI): 0.68 (0.19– 2.23); p = 0.168). In the multivariate model, for men, cases of anxiety had 2.6-fold higher risk of VaD (subdistribution hazard ratio (SHR): 2.61; 95%CI: 0.88–7.74) when all potential confounding factors were controlled, with no statistical significance (p = 0.084), but a clinically relevant effect (Cohen’s d: 0.74). No association was found in women.
Conclusions: In men, but not in women, risk of VaD was higher among individuals with anxiety, with a clinically relevant effect. Potential anxiety-related preventive interventions for VaD might be tailored to men and women separately
Cost-effectiveness of posaconazole versus fluconazole or itraconazole in the prevention of invasive fungal infections among high-risk neutropenic patients in Spain
Validación del monitor de medición de la grasa corporal por impedancia bioeléctrica OMRON BF 300
ObjetivosValorar la precisión del monitor de grasa corporal por impedancia bioeléctrica OMRON BF 300 y validar su medición del porcentaje de grasa corporal (%GC) frente a la ecuación de Siri. Diseño. Estudio descriptivo, transversal.EmplazamientoAtención primaria. Centros de Salud Coronel de Palma y San Fernando, Móstoles.ParticipantesEn la valoración de la precisión del monitor participaron 88 personas y 91 en la validación.Mediciones y resultados principalesLas determinaciones de %GC se realizaron por triplicado, anotándose la media. La precisión se evaluó mediante el coeficiente de correlación intraclase (CCI) y el coeficiente de variación (CV). La validez, mediante el error técnico, el CCI y el método de Bland-Altman. En la ecuación de Siri la densidad corporal se calculó con la ecuación de Durnin-Womersley. Precisión: el CCI fue de 0,999 y el CV de 0,4 ± 0,03. Validación: la diferencia de %GC monitor (26,6 ± 9,1%) – ecuación de Siri (27,8 ± 8,2%) fue de –1,27% (p < 0,01; IC del 95%, –1,97 a –0,57), el error técnico del monitor del 2,2% y el CCI de 0,956 (IC del 95%, 0,9335–0,9710), situándose un 80,2% de las diferencias monitor – ecuación por debajo del 5%, con un intervalo de concordancia por el método de Bland-Altman de +5,45 a –7,99%.ConclusionesEl monitor OMRON BF 300 satisface los criterios de precisión (CCI > 0,95 y CV bajo) y validación (error técnico excelente, CCI > 0,75 y diferencias clÃnicamente aceptables) y supone una alternativa válida a los pliegues cutáneos en la valoración nutricional del paciente.ObjectivesTo assess the accuracy of the OMRON BF 300 body fat monitor using bioelectric impedance and to validate its measurement of body fat percentage (BF%) against the Siri equation.DesignCross-sectional descriptive study.SettingPrimary care. Coronel de Palma and San Fernando Health Centres, Móstoles.Participants88 people took part in the assessment of the accuracy of the monitor, and 91 in the validation.Measurements and main resultsThe BF% were recorded in triplicate, with the mean being the figure noted. Precision was evaluated through the intra-class correlation coefficient (ICC) and the coefficient of variation (CV); validity, through technical error, the ICC and the Bland-Altman method. In the Siri equation, body density was calculated through the Durnin-Womersley equation. Precision: ICC was 0.999 and CV 0.4 ± 0.03. Validation: the difference between the BF% monitor (26.6 ± 9.1%) and the Siri equation (27.8 ± 8.2%) was –1.27% (p < 0.01; 95% CI –1.97 to –0.57); the technical error of the monitor was 2.2% and of the ICC 0.956 (95% CI, 0.9335–0.9710). Thus, 80.2% of the monitor-equation differences were below 5%, with a concordance interval under the Bland-Altman method of +5.45 to –7.99%.ConclusionsThe OMRON BF 300 monitor satisfies the precision criteria (ICC > 0.95 and low CV) and validation (excellent technical error, ICC > 0.75 and clinically acceptable differences) and is a valid alternative to cutaneous folds as a method of assessing nutrition of the patient
Ser o no ser y estar o no estar en Internet.
Objective: To reflect the situation of the websites of the hospital libraries in Spain in 2003.
Material and methods: The websites of the hospital libraries have been located through C-17 directory, various hospital directories and searching Google, Altavista and Alltheweb. It has been applied the questionnaire of evaluation of websites with pondered punctuation by LluÃs Codina. Visibility indicators have been obtained as well as accessibility according TAW. Results: From the C-17 catalogue have been retrieved 176 hospital libraries, of which 13 have a website; we added to these other 19 websites found through other directories and search engines. Of those 32 websites, 2 were not active; the remaining 30 were analyzed. Five of them passed the Codina's test of level I. In the TAW priority level 1, the problems detected automatically oscillated between 0 and 77.
Conclusions: The results show the low number of hospital libraries with websites on the internet. The websites quality should be improved following the recommendations of the checkup lists to evaluate digital resources on the internet. The scarce visibility of these webs, hinders greatly its localization. On the other hand, the low accessibility rate of these webs blocks their visualization to handicapped people
Anhedonia as a potential risk factor of alzheimer’s disease in a community-dwelling elderly sample: Results from the zarademp project
(1) Introduction: Dementia is a major public health problem, and Alzheimer’s disease (AD) is the most frequent subtype. Clarifying the potential risk factors is necessary in order to improve dementia-prevention strategies and quality of life. Here, our purpose was to investigate the role of the absence of hedonic tone; anhedonia, understood as the reduction on previous enjoyable daily activities, which occasionally is underdetected and underdiagnosed; and the risk of developing AD in a cognitively unimpaired and non-depressed population sample.
(2) Method: We used data from the Zaragoza Dementia and Depression (ZARADEMP) project, a longitudinal epidemiological study on dementia and depression. After excluding subjects with dementia, a sample of 2830 dwellers aged =65 years was followed for 4.5 years. The geriatric mental state examination was used to identify cases of anhedonia. AD was diagnosed by a panel of research psychiatrists according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria. A multivariate survival analysis and Cox proportional hazards regression model were performed, and the analysis was controlled by an analysis for the presence of clinically significant depression.
(3) Results: We found a significant association between anhedonia cases and AD risk in the univariate analysis (hazard ratio (HR): 2.37; 95% CI: 1.04–5.40). This association persisted more strongly in the fully adjusted model.
(4) Conclusions: Identifying cognitively intact individuals with anhedonia is a priority to implement preventive strategies that could delay the progression of cognitive and functional impairment in subjects at risk of AD
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