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1.
Rev. andal. med. deporte ; 12(3): 263-267, sept. 2019. tab, graf
Article in Portuguese | IBECS | ID: ibc-191862

ABSTRACT

OBJETIVO: verificar se existe relação entre as barreiras percebidas à prática de atividade física com o nível de atividade física de escolares do ensino médio. MÉTODOS: participaram do estudo 348 escolares, de 14 a 19 anos. Para as informações do nível de atividade física foi utilizado o IPAQ-versão curta e para as barreiras percebidas, o questionário validado para a população do estudo. RESULTADOS: foram considerados ativos 58.6% dos escolares e as barreiras percebidas mais prevalentes foram "ter muitas tarefas", "falta de tempo" e a "dificuldade ocasionada pelo clima". As meninas relataram maior número e maior frequência de respostas em todas as barreiras investigadas. Foi encontrada correlação negativa significativa (p < 0.001) entre o nível de atividade física e as barreiras percebidas. CONCLUSÕES: os achados deste estudo mostraram o impacto que a percepção das barreiras exerce sobre a prática da atividade física, mostrando que quanto maior é o número de barreiras percebidas pelos escolares menor é o nível de atividade física destes


OBJETIVO: verificar si existe una relación entre las barreras percibidas a la práctica de la actividad física con el nivel de actividad de los estudiantes de la educación secundaria. MÉTODO: En el estudio participaron 348 estudiantes, de 14 a 19 años. Para obtener la información del nivel de actividad física, se utilizó el IPAQ versión corta, y para las barreras percibidas, un cuestionario validado para la población del estudio. RESULTADOS: Fueran considerados activos 58.6% de los estudiantes y las barreras percibidas fueron que "tienen muchas tareas", "falta de tiempo" y "la dificultad causada por el clima". Las chicas mostraron mayor frecuencia de respuestas en todas las barreras investigadas. Fue encontrada correlación negativa significativa (p <0.001) entre las variables nivel de actividad física y las barreras percibidas. CONCLUSIÓN: Los resultados de este estudio mostraron el impacto que la percepción de las barreras tiene sobre la práctica de la actividad física, lo que demuestra que cuanto mayor es el número de barreras percibidas para los estudiantes, menor es el nivel de actividad física de éstos


OBJECTIVE: To investigate the relationship between the Physical Activity Level and the perceived barriers for physical activity among High School Students. METHOD: The study included 348 students, aged between 14 and 18 years. The IPAQ-short version was used for physical activity level information, and to investigate the perceived barriers, a questionnaire validated for adolescents was applied. RESULTS: From all the students, 58.6% were considered active and the most prevalent perceived barriers were "many tasks", "lack of time" and "difficulty caused by the weather". Girls reported greater number and frequencies of all barriers investigated. There was a significant negative correlation (p < 0.0001) between physical activity level and perceived barriers. CONCLUSIONS: The findings of this study showed the impact that the perception of barriers has on physical activity, showing that the greater the number of barriers perceived by the students, the lower is their physical activity level


Subject(s)
Humans , Male , Female , Adolescent , Young Adult , Adolescent Behavior , Motor Activity , Surveys and Questionnaires , Brazil
2.
Rev. andal. med. deporte ; 10(3): 142-146, sept. 2017. tab
Article in Portuguese | IBECS | ID: ibc-165979

ABSTRACT

Objetivo. Investigar os efeitos do treinamento resistido sobre o perfil lipídico de indivíduos com síndrome metabólica. Método. Dez indivíduos sedentários (52.88±10.9 anos) com síndrome metabólica completaram um protocolo de treinamento resistido, com duração total de 15 semanas e frequência semanal de 3 vezes. Antes e após o treinamento resistido, foram analisados parâmetros antropométricos, como massa corporal, índice de massa corporal, circunferências do abdômen, cintura, quadril, percentagem de gordura corporal total, conteúdo de massa magra. Além disso, foi estimado o consumo máximo de oxigênio e foram verificados parâmetros bioquímicos, como colesterol total, triglicerídeos, lipoproteína de alta densidade, lipoproteína de baixa densidade, glicose e ureia. Resultados. A intervenção não modificou estatisticamente a massa corporal, o índice de massa corporal, as circunferências de cintura e quadril, o percentual de gordura corporal total, o conteúdo de massa magra, os níveis bioquímicos do colesterol total, triglicerídeos, lipoproteína de baixa densidade e glicose. Entretanto, o treinamento resistido provocou um aumento dos níveis de lipoproteína de alta densidade, e uma diminuição significativa da circunferência do abdômen e da concentração de ureia. Conclusão. Maiores concentrações de lipoproteína de alta densidade, a diminuição da circunferência do abdômen e menores níveis de ureia, bem como provocados pelo treinamento resistido na população em questão são reflexão de menor risco cardiovascular, indicando que o treinamento resistido pode ser benéfico (AU)


Objetivo. Investigar los efectos del entrenamiento de fuerza sobre el perfil lipídico de las personas con síndrome metabólico. Método. Diez personas sedentarias (52.88±10.9 años) con síndrome metabólico completaron un protocolo de entrenamiento de fuerza de 15 semanas de duración total y tres sesiones semanales. Antes y después de entrenamiento de fuerza, se analizaron parámetros antropométricos como la masa corporal, el índice de masa corporal, las circunferencias abdominal, de la cintura y de la cadera, porcentaje de grasa corporal y la masa magra. Además, se estimó el consumo máximo de oxígeno y se analizaron parámetros bioquímicos como el colesterol total, triglicéridos, lipoproteínas de alta densidad, lipoproteínas de baja densidad, glucemia y urea. Resultados. La intervención no modificó estadísticamente masa corporal, índice de masa corporal, circunferencia de la cintura y la cadera, el porcentaje de grasa corporal total, el contenido de masa magra, los niveles bioquímicos de colesterol total, triglicéridos, lipoproteínas de baja densidad y glucosa. Sin embargo, el entrenamiento de fuerza provocó aumento en las lipoproteínas de alta densidad, disminución significativa en la circunferencia abdominal y en la concentración de urea. Conclusión. Las concentraciones altas de lipoproteínas de alta densidad, los niveles más bajos de urea, así como la reducción de la circunferencia abdominal, inducidos por el entrenamiento de fuerza en esta población, son reflejo de una reducción del riesgo cardiovascular, lo que indica que el entrenamiento de fuerza puede ser beneficioso (AU)


Objective. To investigate the effects of resistance training on the lipid profile of Metabolic Syndrome patients. Method. Ten sedentary subjects (52.88±10.9 years) with Metabolic Syndrome completed a resistance training protocol with a total duration of 15 weeks, three times per week. Before and after the resistance training, anthropometric parameters, such body mass, body mass index, abdominal, waist and hip circumferences, percentage of body fat and muscle mass content were analyzed. Furthermore, the maximal oxygen uptake was estimated and biochemical parameters, such as total cholesterol, triglycerides, high‐density lipoprotein, low‐density lipoprotein, glycemia and urea were analyzed. Results. The intervention didn’t statistically modified body mass, body mass index, circumferences of waist and hip, the percentage of total body fat, lean mass content, the biochemical levels of total cholesterol, triglycerides, low‐density lipoprotein and glucose. However, the resistance training provoked an increase in high‐density Lipoprotein levels and a significant decrease in abdominal circumference and urea concentration. Conclusion. Higher concentrations of high‐density Lipoprotein and lower levels of urea as well as the reductions in abdominal circumference provoked by resistance training in this population are indicators of a lower cardiovascular risk, indicating that the resistance training may be beneficial (AU)


Subject(s)
Humans , Middle Aged , Metabolic Syndrome/complications , Metabolic Syndrome/diagnosis , Muscle Strength , Resistance Training/methods , Abdominal Circumference , Obesity/diagnosis , Sedentary Behavior , Anthropometry/methods , Body Mass Index , Lipoproteins, LDL/analysis , Blood Glucose/analysis , Urea/analysis , Obesity/complications
3.
Rev. andal. med. deporte ; 7(1): 21-26, mar. 2014. tab, ilus
Article in Portuguese | IBECS | ID: ibc-121502

ABSTRACT

Objetivo: Investigar a influência de um treinamento físico combinado (TC) sobre a espessura da camada mio-intimal (CMI) carotídea e a idade vascular (IV) de indivíduos com síndrome metabólica (SM). Método: Doze indivíduos sedentários (51,50 ± 6,52 anos) completaram um TC com duração de 30 semanas e frequência semanal de três vezes. Antes e após o TC, foram analisadas variáveis antropométricas, funcionais e bioquímicas. Foi realizado o ultrassom bidimensional da espessura da CMI carotídea e denominou-se como IV a quantificação e comparação da espessura da CMI dos participantes. A diferença entre a IV e a idade cronológica de cada indivíduo foi denominada de delta de idade e o escore de Framingham foi calculado. Além disso, optou-se por calcular o escore de Framingham modificado (EFM), através da substituição da idade cronológica pela IV. Resultados: A espessura da CMI carotídea, a IV, o delta da idade e o escore de Framingham não diminuíram significativamente após as 30 semanas de TC. Entretanto, a pontuação obtida no EFM apresentou uma diminuição após a intervenção (p < 0,05). Além disso, o TC resultou em um aumento dos níveis da lipoproteína de alta densidade (HDL-C) (p < 0,05) e da estimativa do consumo máximo de oxigênio (p < 0,01) de indivíduos com SM. Conclusão: O treinamento físico proposto não alterou a espessura da CMI carotídea e a IV, embora tenha diminuído a pontuação do EFM, o qual pode identificar indivíduos anteriormente não reconhecidos como de alto risco e auxiliar na terapia individual de pacientes com SM


Objetivo. Investigar la influencia del entrenamiento físico concurrente (EC) sobre el grosor íntimo-medio carotideo (IMT) y edad vascular (VA) en individuos con síndrome metabólico (SM). Método. 22 voluntarios sedentarios (51,50 ± 6,52 años de edad) fueron sometidos a EC durante 30 semanas, tres veces por semana. Antes y después del EC, se analizaron variables antropométricas, funcionales y bioquímicas. Se realizó ecografía bidimensional del IMT carotídeo. La comparación y cuantificación del IMT carotídeo de los participantes fue denominado VA. Se llamó delta de edad a la diferencia entre la VA y la edad cronológica y se calculó la puntuación de riesgo de Framingham. Además, también se calculó la puntuación de riesgo de Framingham modificada (MFS) en la que se sustituyó la edad cronológica por la VA. Resultados. Tras 30 semanas de EC no se observa una disminución estadística en el IMT carotídeo, la VA, el delta de edad y la puntación Framingham. Sin embargo, la puntuación en la MFS desciende tras la intervención (p < 0,05). Además, en individuos con SM el EC aumenta los niveles del colesterol de las lipoproteínas de alta densidad (c-HDL) (p < 0,05) así como el consumo máximo de oxígeno estimado (p < 0,01). Conclusión. El entrenamiento concurrente propuesto no modifica el IMT carotídeo ni la VA, si bien se observa una reducción de la puntación MFS que puede servir para identificar individuos de alto riego previamente no identificados y ayudar en la terapia individualizada de los pacientes con SM (AU)


Objective. To investigate the influence of a concurrent physical training (CT) on the carotid intima-media thickness (IMT) and vascular age (VA) of individuals with metabolic syndrome (MS). Method. Twelve sedentary volunteers (51,50 ± 6,52 years old) were submitted to a CT during 30 weeks, three times per week. Before and after the CT, were analyzed anthropometric, functional and biochemical variables. It was performed a two-dimensional ultrasound for carotid IMT and the quantification and comparison of carotid IMT of participants was named VA. The difference between VA and chronological age was named age's delta and the Framingham risk score was calculated. Furthermore, it was calculated the modified Framingham risk score (MFS), replacing chronological age for VA. Results. The carotid IMT, the VA, the age's delta and the Framingham score did not decrease significantly after 30 weeks of CT. However, the scoring in MFS decreased after the intervention (p < 0.05). Besides, the CT increased the high-density lipoprotein cholesterol (HDL-C) levels (p < 0.05) and the estimated maximal oxygen uptake (p < 0.01) in individuals with MS. Conclusion. The proposed concurrent training did not alter the carotid IMT and the VA, although had decreased the MFS scoring, which can identify individuals previously not recognize such with a high risk and assist in the individual therapy of patients with MS (AU)


Subject(s)
Humans , Male , Female , Middle Aged , Physical Education and Training/methods , Physical Education and Training/standards , Physical Education and Training/trends , Anthropometry/instrumentation , Anthropometry/methods , Carotid Body/physiology , Carotid Intima-Media Thickness/instrumentation , Carotid Intima-Media Thickness/trends , Carotid Intima-Media Thickness , Resistance Training/methods , Resistance Training/trends , Echocardiography/instrumentation , Echocardiography/methods , Echocardiography , Cholesterol , Cholesterol/metabolism
4.
Arq Neuropsiquiatr ; 59(4): 954-8, 2001 Dec.
Article in Spanish | MEDLINE | ID: mdl-11733845

ABSTRACT

Cytomegalovirus encephalitis is rarely diagnosed in immunocompetent patients. It is more frequent among immunocompromised hosts. We present a case of a young male patient without evidence of immunosupression who had a cytomegalovirus encephalitis. The diagnosis was made by detection of viral DNA in cerebral tissue obtained by biopsy. Neuropathologic and ultrastructural changes are described and compared with the descriptions in immunocompromised patients.


Subject(s)
Cytomegalovirus Infections/pathology , Cytomegalovirus , DNA, Viral/analysis , Encephalitis, Viral/pathology , Adult , Biopsy , Cytomegalovirus/isolation & purification , Humans , Immunocompromised Host , Male , Microscopy, Electron
5.
Braz. j. med. biol. res ; 32(9): 1089-94, Sept. 1999.
Article in English | LILACS | ID: lil-241602

ABSTRACT

We describe a new gasometric method to determine erythrocyte catalase activity by the measurement of the volume of oxygen produced as a result of hydrogen peroxide decomposition in a system where enzyme and substrate are separated in a special reaction test tube connected to a manometer and the reagents are mixed with a motor-driven stirrer. The position of the reagents in the test tube permits the continuous measurement of oxygen evolution from the time of mixing, without the need to stop the reaction by the addition of acid after each incubation time. The enzyme activity is reported as KHb, i.e., mg hydrogen peroxide decomposed per second per gram of hemoglobin (s-1 g Hb-1). The value obtained for catalase activity in 28 samples of hemolyzed human blood was 94.4 percent 6.17 mg H2O2 s-1 g Hb-1. The results obtained were precise and consistent, indicating that this rapid, simple and inexpensive method could be useful for research and routine work


Subject(s)
Adult , Middle Aged , Female , Humans , Adolescent , Catalase/blood , Erythrocytes/enzymology , Blood Gas Analysis/methods , Catalase/metabolism , Manometry , Time Factors
6.
Braz J Med Biol Res ; 32(9): 1089-94, 1999 Sep.
Article in English | MEDLINE | ID: mdl-10464384

ABSTRACT

We describe a new gasometric method to determine erythrocyte catalase activity by the measurement of the volume of oxygen produced as a result of hydrogen peroxide decomposition in a system where enzyme and substrate are separated in a special reaction test tube connected to a manometer and the reagents are mixed with a motor-driven stirrer. The position of the reagents in the test tube permits the continuous measurement of oxygen evolution from the time of mixing, without the need to stop the reaction by the addition of acid after each incubation time. The enzyme activity is reported as K Hb, i.e., mg hydrogen peroxide decomposed per second per gram of hemoglobin (s-1 g Hb-1). The value obtained for catalase activity in 28 samples of hemolyzed human blood was 94.4 +/- 6.17 mg H2O2 s-1 g Hb-1. The results obtained were precise and consistent, indicating that this rapid, simple and inexpensive method could be useful for research and routine work.


Subject(s)
Catalase/metabolism , Erythrocytes/enzymology , Adolescent , Adult , Blood Gas Analysis/methods , Female , Humans , Male , Manometry , Middle Aged , Time Factors
7.
J Gen Virol ; 80 ( Pt 6): 1377-1382, 1999 Jun.
Article in English | MEDLINE | ID: mdl-10374954

ABSTRACT

Hepatitis C virus (HCV) has high genomic variability and, since its discovery, at least six different types and an increasing number of sub-types have been reported. The HCV genotype may influence virus replication, the natural course of disease and the response to therapy. HCV has been described as a dynamic population of heterogeneous, closely related variants, designated quasispecies. In order to study the degree of genetic variability of strains isolated in Montevideo, Uruguay, sequence data obtained from the 5' non-coding region of type 1-infected patients were compared with published sequences from 53 different strains of all types isolated all over the world. The phylogenetic analysis revealed that type 1 strains isolated in Montevideo represent a different genetic lineage from major sub-types 1a and 1b strains and indicates an increasing diversification of HCV viruses.


Subject(s)
5' Untranslated Regions/genetics , Genetic Variation , Hepacivirus/genetics , Hepacivirus/isolation & purification , Hepatitis C/virology , Base Sequence , DNA, Viral/analysis , DNA, Viral/genetics , Genotype , Hepacivirus/classification , Humans , Molecular Sequence Data , Phylogeny , Sequence Analysis, DNA , Uruguay
9.
Arch. pediatr. Urug ; 68(4): 15-23, 1997. ilus, tab
Article in Spanish | LILACS | ID: lil-225465

ABSTRACT

La encefalitis por Herpes Simple tipo 1 es una enfermedad grave. Su pronóstico depende del diagnóstico y tratamiento precoz. Se analizan cuatro historias clínicas de niños con encefalitis herpética diagnosticada por Reacción en Cadena de la Polimerasa (PCR) en líquido cefalorraquídeo (LCR) entre marzo de 1995 y marzo de 1997. Se trata de tres lactantes y un escolar. Todos presentaron manifestaciones clínicas similares al ingreso: fiebre, depresión neurosíquica (DNS) y convulsiones (parciales o generalizadas). El análisis citoquímico del LCR al ingreso fue normal en tres casos. Los hallazgos tomográficos en la evolución fueron idénticos: infarto fronto témporo parietal. En un sólo caso se valoró el fondo de ojo al inicio. Tres pacientes tuvieron evolución clínica similar: profundización de la DNS, convulsiones y signos locales. Todos quedaron con secuelas, que fueron más graves en los pacientes en los que el tratamiento se instaló tardíamente. Con el objetivo de protocolizar las indicaciones de la búsqueda viral por PCR y de mejorar el pronóstico de estos pacientes se propone un algoritmo de diagnóstico, estudio y tratamiento para esta enfermedad


Subject(s)
Humans , Male , Female , Infant , Encephalitis, Viral/cerebrospinal fluid , Encephalitis, Viral/diagnosis , Encephalitis, Viral/therapy , Herpesviridae Infections/diagnosis , Herpesviridae Infections/drug therapy , Acyclovir/therapeutic use , Clinical Protocols , Polymerase Chain Reaction
10.
Genomics ; 13(2): 395-401, 1992 Jun.
Article in English | MEDLINE | ID: mdl-1612598

ABSTRACT

A method based on the differential screening of a chromosome-specific cosmid library with amplified inter-Alu sequences obtained from a set of somatic cell hybrids has been developed to target the isolation of probes from predefined subchromosomal regions. As a model system, we have used a chromosome 22-specific cosmid library and four cell hybrids containing different parts of this chromosome. The procedure has identified cosmids that demonstrate differential hybridization signals with Alu-PCR products from these cell hybrids. We show, by in situ hybridization or individual mapping, that their hybridization pattern is indicative of their sublocalization on chromosome 22, thus resulting in a large enrichment factor for the isolation of probes from specific small chromosome subregions. Depending on the local Alu-sequence density, from 3 to 10 independent loci per megabase of genome can thus be identified.


Subject(s)
Chromosomes, Human, Pair 22 , Cosmids , Gene Library , Polymerase Chain Reaction/methods , Repetitive Sequences, Nucleic Acid , Animals , Chromosome Mapping , Cricetinae , Cricetulus , Humans , Hybrid Cells
11.
Genomics ; 9(4): 721-7, 1991 Apr.
Article in English | MEDLINE | ID: mdl-2037296

ABSTRACT

The adenylosuccinate lyase (ADSL) which is essential for generating adenylate, maps to the long arm of chromosome 22. By using a Chinese hamster ovary cell line deficient in ADSL activity, we have constructed a set of 17 somatic cell hybrids containing defined regions of human chromosome 22. This panel was extended with six additional hybrids, obtained in other laboratories using various methods of selection. Southern analysis of the hybrids with 38 chromosome 22 probes defined 14 different subregions which could be linearly organized on the long arm of chromosome 22. The order of the probes thus deduced is fully compatible with their previous localization and with the genetic map. The ADSL gene was further sublocalized between the MB and D22S22. This panel, which enables the rapid assignment of chromosome 22 single copy probes to small subregions, will be an important tool in the construction of a detailed physical map of this part of the genome.


Subject(s)
Adenylosuccinate Lyase/genetics , Chromosomes, Human, Pair 22 , Animals , Blotting, Southern , Cell Fusion , Chromosome Mapping , Cloning, Molecular , Cricetinae , Humans , Hybrid Cells , Repetitive Sequences, Nucleic Acid
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