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Search Results: 1 - 10 of 250329 matches for " Rosa P. Hernández-Torres "
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The Respiratory Exchange Ratio is Associated with Fitness Indicators Both in Trained and Untrained Men: A Possible Application for People with Reduced Exercise Tolerance
Arnulfo Ramos-Jiménez,Rosa P. Hernández-Torres,Patricia V. Torres-Durán,Jaime Romero-Gonzalez
Clinical Medicine : Circulatory, Respiratory and Pulmonary Medicine , 2008,
Abstract: Background: The respiratory exchange ratio (RER) indirectly shows the muscle′s oxidative capacity to get energy. Sedentarism, exercise and physically active lifestyles modify it. For that reason, this study evaluates the associations between RER during sub-maximum exercise and other well established fitness indicators (body fat, maximum heart rate, maximum O2 uptake, workload, and lactate threshold), in physically active trained and untrained men.Methods: The RER, O2 uptake and blood lactate were measured in eight endurance trained and eight untrained men (age, 22.9 ± 4.5 vs. 21.9 ± 2.8 years; body mass, 67.1 ± 5.4 vs. 72.2 ± 7.7 kg; body fat, 10.6 ± 2.4% vs. 16.6 ± 3.8% and maximum O2 uptake, 68.9 ± 6.3 vs. 51.6 ± 5.8 ml kg 1 min 1), during maximum exercise test and during three different sub-maximum exercises at fixed workload: below, within or above the lactate threshold.Results: Endurance trained men presented higher O2 uptake, lower blood lactate concentrations and lower RER values than those in untrained men at the three similar relative workloads. Even though with these differences in RER, a strong association (p < 0.05) of RER during sub-maximum exercise with the other well established fitness indicators was observed, and both maximum O2 uptake and lactate threshold determined more than 57% of its variance (p < 0.05).Conclusions: These data demonstrate that RER measurement under sub-maximum exercise conditions was well correlated with other established physical fitness indicators, despite training condition. Furthermore, the results suggest that RER could help obtain an easy approach of fitness status under low exercise intensity and could be utilized in subjects with reduced exercise tolerance.
Validez del cuestionario de hábitos y conductas físico-deportivas de Pierón en jóvenes del norte de México
Ramos-Jiménez, Arnulfo;Wall-Medrano, Abraham;Esparza-Del Villar, Oscar A.;Hernández-Torres, Rosa P.;
Revista electrónica de investigación educativa , 2010,
Abstract: several self-report questionnaires have been used to evaluate various determiners of sports practice in young people, but very few have been applied to mexicans. in this analysis, the questionnaire was administered to 222 subjects (13-25 years). we determined its internal consistency (cronbach α), content validity (document analysis), construct (exploratory factor analysis, efa) as well as that of the criterion. the latter, by its correlation (spearman) with anthropometric variables: body mass index (bmi) and waist circumference (wc) and physiological (vo2max). the results showed that the internal consistency is acceptable (cronbach's α = 0.68 to 0.85). moreover, this questionnaire similarly responds to queries posed in surveys already reported (to find out the physical, educational, psychological and socio-demographic characteristics of physical/sports practice). the efa showed 1, 2 and 3 factor structures with adequate cronbach's α (~0.70) and kaiser-meyer-olkin (~0.72) values. the practice of physical activity was associated with a lower bmi and higher vo2max. the questionnaire proved to be a valid instrument for investigating physical/sports habits and behavior in young people from northern mexico.
The Respiratory Exchange Ratio is Associated with Fitness Indicators Both in Trained and Untrained Men: A Possible Application for People with Reduced Exercise Tolerance
Arnulfo Ramos-Jiménez, Rosa P. Hernández-Torres, Patricia V. Torres-Durán, Jaime Romero-Gonzalez, Dieter Mascher, Carlos Posadas-Romero and Marco A. Juárez-Oropeza
Clinical Medicine Insights: Circulatory, Respiratory and Pulmonary Medicine , 2012,
Abstract: Background: The respiratory exchange ratio (RER) indirectly shows the muscle′s oxidative capacity to get energy. Sedentarism, exercise and physically active lifestyles modify it. For that reason, this study evaluates the associations between RER during sub-maximum exercise and other well established fitness indicators (body fat, maximum heart rate, maximum O2 uptake, workload, and lactate threshold), in physically active trained and untrained men. Methods: The RER, O2 uptake and blood lactate were measured in eight endurance trained and eight untrained men (age, 22.9 ± 4.5 vs. 21.9 ± 2.8 years; body mass, 67.1 ± 5.4 vs. 72.2 ± 7.7 kg; body fat, 10.6 ± 2.4% vs. 16.6 ± 3.8% and maximum O2 uptake, 68.9 ± 6.3 vs. 51.6 ± 5.8 ml kg 1 min 1), during maximum exercise test and during three different sub-maximum exercises at fixed workload: below, within or above the lactate threshold. Results: Endurance trained men presented higher O2 uptake, lower blood lactate concentrations and lower RER values than those in untrained men at the three similar relative workloads. Even though with these differences in RER, a strong association (p < 0.05) of RER during sub-maximum exercise with the other well established fitness indicators was observed, and both maximum O2 uptake and lactate threshold determined more than 57% of its variance (p < 0.05). Conclusions: These data demonstrate that RER measurement under sub-maximum exercise conditions was well correlated with other established physical fitness indicators, despite training condition. Furthermore, the results suggest that RER could help obtain an easy approach of fitness status under low exercise intensity and could be utilized in subjects with reduced exercise tolerance.
Validación de la versión corta del Woman Abuse Screening Tool para su uso en atención primaria en Espa?a
Plazaola-Casta?o,Juncal; Ruiz-Pérez,Isabel; Hernández-Torres,Elisa;
Gaceta Sanitaria , 2008, DOI: 10.1590/S0213-91112008000500005
Abstract: objective: to examine the criterion validity of the spanish short version of the woman abuse screening tool (wast) to identify battered women among those attending primary health care services in spain. material and methods: we performed a cross-sectional study in two primary care centers in granada. a total of 390 women between 18 and 70 years old were studied. the index of spouse abuse (isa) was used as the gold standard. results: two score criteria were used. using the first criterion, 132 women (33.8%) scored positively. the sensitivity was 91.4%, specificity was 76.2%, positive predictive value 40.2% and negative predictive value was 98.1%. five women with a negative wast score obtained a positive isa score (false negatives). seventy-nine women obtained a positive score in the wast, with a negative score in the isa (false positives). conclusions: these results coincide with the sensitivity and specificity values obtained in the validation of the instrument in spanish-speaking women in the usa, which also recommend the use of the first criterion. the spanish short version of the wast is a suitable instrument to be used by health professionals for the early detection of gender violence in the healthcare context of spain. however, because of its low specificity, this instrument should be used with caution.
Factores fisiológicos y sociales asociados a la masa corporal de jóvenes mexicanos con discapacidad intelectual Physiological and social factors associated with increments of body mass of Mexican young people with intellectual disabilities
A. Ramos-Jiménez,A. Wall-Medrano,R. P. Hernández-Torres
Nutrición Hospitalaria , 2012,
Abstract: Introducción: Estudios sobre el estado de salud y nutrición de Mexicanos con discapacidad intelectual (DI) incluyendo aquellos con Síndrome de Down (SD), son escasos. Objetivo: Analizar algunos factores fisiológicos y sociales asociados a la masa corporal de jóvenes con DI del norte de México. Métodos: A 57 jóvenes con DI (17 ± 5 a os, SD = 16%) y al menos uno de sus tutores, se les midió su peso, talla, y otras variables antropométricas. Se determinó su IMC (kg/m2), somatotipo y estado nutricio mediante 3 criterios internacionales y glucosa, colesterol total y triacilglicéridos plasmáticos. Al tutor se le aplicó un cuestionario socioeconómico, de inseguridad alimentaria y conocimientos de nutrición. Resultados: Los participantes con SD eran 12 cm más peque os y median 6 mm más de pliegue subscapular (PSECP) que aquellos con otra DI (p < 0,05). El sobrepeso-obesidad estuvo presente en 70 y 44%, respectivamente. Los parámetros bioquímicos fueron similares entre grupos, pero 25% tenía alguna dislipidemia. El IMC del participante correlacionó (p < 0,01) con varios indicadores antropométricos y de adiposidad (r = 0,40 a 0,88), plasmáticos [triacilglicéridos (r = 0,48), colesterol total (r = 0,44)] y edad del participante y tutor (r = 0,35). El gasto en alimentos correlaciono con PSECP del participante (r = -0,33, p < 0,05). La circunferencia de cadera, cintura, pantorrilla y PSECP, explicaron el 89% de la varianza del IMC. Conclusión: La masa corporal de jóvenes con DI del norte de México se relaciona fuertemente con el grado de adiposidad corporal, con dislipidemias y con factores socioeconómicos de su entorno familiar. Introduction: Studies on the state of health and nutrition of Mexicans with intellectual disability (ID) including those with Down syndrome (DS), are scarce. Objective: To analyze some physiological and social factors associated with the body mass of young people with ID from northern México. Methods: Body weight, height and other anthropometric values were measured in fifty seven young (17 ± 5 years) participants with ID (DS,16%) and at least one guardian. BMI (kg/m2), somatotype and nutritional status were established by three international standards and total blood glucose, cholesterol & triacylglycerides, were also analyzed. Guardian's socio-economic, household food insecurity and nutrition literacy status were estimated with validated questionnaires by direct interview. Results: Participants with SD were 12 cm smaller but subscapular skinfold (SECPS) was 6 mm thicker than that from other ID participants (p < 0.05). Prevalence of overwe
Diagnostic Accuracy, Effectiveness and Cost for Cognitive Impairment and Dementia Screening of Three Short Cognitive Tests Applicable to Illiterates
Cristóbal Carnero-Pardo, Beatriz Espejo-Martínez, Samuel López-Alcalde, María Espinosa-García, Carmen Sáez-Zea, Elisa Hernández-Torres, José Luis Navarro-Espigares, Rosa Vílchez-Carrillo
PLOS ONE , 2011, DOI: 10.1371/journal.pone.0027069
Abstract: Background Illiteracy, a universal problem, limits the utilization of the most widely used short cognitive tests. Our objective was to assess and compare the effectiveness and cost for cognitive impairment (CI) and dementia (DEM) screening of three short cognitive tests applicable to illiterates. Methods Phase III diagnostic test evaluation study was performed during one year in four Primary Care centers, prospectively including individuals with suspicion of CI or DEM. All underwent the Eurotest, Memory Alteration Test (M@T), and Phototest, applied in a balanced manner. Clinical, functional, and cognitive studies were independently performed in a blinded fashion in a Cognitive Behavioral Neurology Unit, and the gold standard diagnosis was established by consensus of expert neurologists on the basis of these results. Effectiveness of tests was assessed as the proportion of correct diagnoses (diagnostic accuracy [DA]) and the kappa index of concordance (k) with respect to gold standard diagnoses. Costs were based on public prices at the time and hospital accounts. Results The study included 139 individuals: 47 with DEM, 36 with CI, and 56 without CI. No significant differences in effectiveness were found among the tests. For DEM screening: Eurotest (k = 0.71 [0.59–0.83], DA = 0.87 [0.80–0.92]), M@T (k = 0.72 [0.60–0.84], DA = 0.87 [0.80–0.92]), Phototest (k = 0.70 [0.57–0.82], DA = 0.86 [0.79–0.91]). For CI screening: Eurotest (k = 0.67 [0.55–0.79]; DA = 0.83 [0.76–0.89]), M@T (k = 0.52 [0.37–0.67]; DA = 0.80 [0.72–0.86]), Phototest (k = 0.59 [0.46–0.72]; DA = 0.79 [0.71–0.86]). There were no differences in the cost of DEM screening, but the cost of CI screening was significantly higher with M@T (330.7±177.1€, mean±sd) than with Eurotest (294.1±195.0€) or Phototest (296.0±196.5€). Application time was shorter with Phototest (2.8±0.8 min) than with Eurotest (7.1±1.8 min) or M@T (6.8±2.2 min). Conclusions Eurotest, M@T, and Phototest are equally effective. Eurotest and Phototest are both less expensive options but Phototest is the most efficient, requiring the shortest application time.
Subcutaneous Histiocytoid Sweet Syndrome Associated with Crohn Disease in an Adolescent
Rosa María Fernández-Torres,Susana Castro,Ana Moreno,Roberto álvarez,Eduardo Fonseca
Case Reports in Dermatological Medicine , 2014, DOI: 10.1155/2014/954254
Abstract: We report a case of subcutaneous histiocytoid Sweet syndrome in an adolescent with Crohn disease. A 14-year-old boy with a 1-year history of ileocolonic and perianal Crohn disease, treated with infliximab and azathioprine, was admitted to the Pediatrics Department with malaise, abdominal pain, bloody diarrhea, and fever (39°C) from 15 days ago. Two days later, he developed cutaneous lesions consisting of tender, erythematous, and violaceous papules and nodules scattered over his legs, soles, and upper extremities. Laboratory studies revealed neutrophilia, microcytic anemia, and elevation of both erythrocyte sedimentation rate and C-reactive protein rate. A skin biopsy specimen showed deep dermal and predominantly septal inflammatory infiltrate in the subcutaneous tissue composed of polymorphonuclears, eosinophils, and mononuclear cells of histiocytic appearance. These histiocytoid cells stained positive for myeloperoxidase. Subcutaneous Sweet syndrome is a rare subtype of acute neutrophilic dermatosis, in which the infiltrate is exclusively or predominantly located in the subcutaneous tissue, causing lobular or septal panniculitis. It is often described in patients with an underlying haematological disorder or caused by drugs, but very rare in patients with inflammatory bowel disease, especially in childhood or adolescence. To our knowledge, this is the first case of subcutaneous histiocytoid type in a paediatric patient. 1. Introduction Sweet syndrome, also referred to as acute febrile neutrophilic dermatosis, is a reactive condition of unknown etiology characterized by an abrupt onset of cutaneous lesions consisting of painful, erythematous plaques, papules, and nodules accompanied by fever and neutrophilia. It has been reported in association with several drugs and inflammatory, neoplastic, and infectious diseases [1]. Cases of Sweet syndrome in patients with Crohn disease have been sporadically reported. Herein, we report a case of this association with the peculiarities being the subcutaneous histiocytoid variant of Sweet syndrome and occurring in an adolescent. 2. Case Presentation A 14-year-old boy with a 1-year history of recurrent ileocolonic and perianal Crohn disease, treated with infliximab and azathioprine, was admitted to the Pediatrics Department with malaise, abdominal pain, bloody diarrhea, and fever (39°C) from 15 days ago. Due to suspicion of concurrent intra-abdominal infection, treatment with teicoplanin, meropenem, and metronidazole was started. Two days after hospital admission, he developed cutaneous lesions consisting of tender,
Systemic Mastocytosis Associated with Splenic Marginal Zone Lymphoma with Villous Lymphocytes
R. Fernández-Torres,M. M. Verea,A. álvarez,P. Torres,E. Fonseca
Dermatology Research and Practice , 2011, DOI: 10.1155/2011/385074
Abstract: The development of a second haematological disease during the course of systemic mastocytosis is a well-known phenomenon. In most of the cases, they consist of myelodysplasia or myeloproliferative disorders. The association with lymphoproliferative disorders has also been described, but it is uncommon and the relationship is not well established. We report a patient diagnosed with systemic mastocytosis who three years later developed a splenic marginal zone lymphoma with villous lymphocytes. 1. Introduction The term mastocytosis refers to a group of disorders characterized by and abnormal growth and accumulation of mast cells in one or more organs, including skin, lymph nodes, bone marrow, nervous system, gastrointestinal tract, spleen, and liver. Systemic mastocytosis associated with clonal haematological nonmast cell lineage disease (SM-AHNMD) is an entity recognized by the World Health Organization classification of tumours of hematopoietic tissues [1]. The occurrence of myeloproliferative syndromes in patients with systemic mastocytosis is a well-recognized phenomenon. However, non-Hodgkin’s lymphoma is very uncommon. We report a patient with urticaria pigmetosa of ten years evolution and systemic mastocytosis (SM) diagnosed three years ago who developed splenic marginal zone lymphoma with villous lymphocytes, a low-grade B-cell non-Hodgkin’s lymphoma characterized by splenomegaly, moderate lymphocytosis, bone marrow infiltration, serum monoclonal band, and a benign course with response to splenectomy [2]. To our knowledge, the association of this neoplasm with SM has not been previously documented in the literature. 2. Case Report A 65-year-old female with unremarkable past medical history presented with papular, purplish, and itchy cutaneous lesions located on her forearms, thighs, and trunk for ten years (Figure 1). Figure 1: Papular, purplish cutaneous lesions of urticaria pigmentosa on the forearms. Laboratory investigations, including blood counts, chemistry, and routine coagulation parameters, showed no alterations. A skin biopsy from a papular lesion revealed an acanthotic epidermis and hyperpigmentation of the epidermal basal cell layer. Giemsa stain showed many mast cells around blood vessels and scattered throughout the dermis. A bone marrow smear showed atypical large, spindle-shaped, and hypogranulated mast cells with elongated nucleus. The histological examination of a bone marrow biopsy disclosed decreased cellularity and multifocal infiltrates of cells with oval nucleus and large cytoplasm. These cells were positive with the
Evaluación Inicial del Seguro Popular sobre el Gasto Catastrófico en Salud en México
Hernández-Torres,Jinneth; Avila-Burgos,Leticia; Valencia-Mendoza,Atanacio; Poblano-Verástegui,Ofelia;
Revista de Salud Pública , 2008, DOI: 10.1590/S0124-00642008000100003
Abstract: objective estimating seguro popular de salud's (sps) initial outcome regarding households' catastrophic health spending (chs). the relationship of other important factors to the ce was also estimated. material and methods a cross-sectional study, based on evaluating seguro popular's survey, was carried out in the mexican states of colima and campeche during 2002; it was carried out during the first semester of 2005. sps and other co-variables' relationship with chs was estimated by using the probit model. such relationship was then estimated again using the bi-probit model, but taking endogeneity between chs and sps affiliation into consideration. some simulations led to a detailed analysis of the influence of the use by type of service on the chs. results the probability of sps-affiliated households incurring chs was about 8% less than un-affiliated households (controlled for other co-variables and corrected for endogeneity). the probability of incurring chs was always less for affiliated people, independently of the income bracket which they belonged to and the kind of services used. conclusions the results suggested that sps is financially protecting households; nevertheless, the goal of a 75 % reduction in chs has still to be achieved.
Prevalencia de desnutrición en menores de cinco a os de Tabasco
Lastra-Escudero Lucio G.,Roldán-Fernández Silvia G.,Hernández-Martínez Enrique,Hernández-Torres Alma Patricia
Salud Pública de México , 1998,
Abstract: Objetivo. Evaluar la prevalencia de desnutrición que se presentó en ni os tabasque os menores de cinco a os en 1996, y su evolución entre 1991 y 1996. Material y métodos. Se realizó un estudio de corte transversal que incluyó a 1 256 ni os de 593 comunidades (31 urbanas y 562 rurales) de los 17 municipios de Tabasco. Resultados. El indicador peso/edad registró 41% de prevalencia de desnutrición, distribuida en leve (26.12%), moderada (12.62%) y severa (2.39%). En ni os de entre 1 y 5 a os la prevalencia de desnutrición fue de 45%. Conclusiones. De 1991 a 1996 la cifra de ni os con desnutrición ha disminuido proporcionalmente al incremento de la nutrición normal. Asimismo, han disminuido de seis a cuatro los municipios con indicadores críticos de desnutrición, con base en las acciones del sector salud en el estado de Tabasco.
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