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1.
Rev. int. med. cienc. act. fis. deporte ; 18(71): 521-535, sept. 2018. tab, graf
Artigo em Espanhol | IBECS | ID: ibc-180229

RESUMO

El objetivo de este estudio fue determinar si existen diferencias en los valores de VO2max indirecto obtenido con cinco pruebas físicas: UTMM, VAM-EVAL, Ida-Vuelta, 1000 m y Ramsbottom. Los sujetos fueron hombres mexicanos en edad universitaria sin entrenamiento previo y sin experiencia en deportes, con los siguientes parámetros: edad 19,33 ± 1,09 años (media ± 1 desviación estándar), peso 68,47 ± 9,93 kg, estatura 1,71 ± 0,06 m e IMC 23,62 ± 2,82. El VO2max indirecto (ml/kg/min, media ± 1 error estándar) por prueba fue de: 44,26 ± 3,74 para UMTT, 44,14 ± 3,01 para VAM-EVAL, 42,78 ± 2,80 para Ida y vuelta, 44,92 ± 2,33 para 1000 m y 42,67 ± 2,96 para Ramsbotton. No se encontraron diferencias significativas entre el VO2max indirecto obtenido por los sujetos de estudio en las cinco pruebas. Concluimos que las cinco pruebas son equivalentes y pueden ser usadas indistintamente para evaluar el VO2max indirecto


The objetive of this study was determining if there are differences in the measurement of indirect VO2max among five different physical tests: UMTT, VAM-EVAL, 20 MST, 1000 m and Ramsbottom. The subjects were Mexican college-age men without previous training and without sport experience with the following parameters: years 19,33±1,09 (mean ± 1 standard deviation), weight 68,47 ± 9,93 kg, height 1,71 ± 0,06 m and body mass index 23,62 ± 2,82. VO2max indirect (ml/kg/min, average ± 1 standard error) by test were: 44,26 ± 3,74 for UMTT, 44,14 ± 3,01 for VAM-EVAL, 42,78 ± 2,80 for 20 MST, 44,92 ± 2,33 for 1000 m and 42,67 ± 2,96 for Ramsbotton. We do not detect significant differences between the indirect VO2max obtained in the five tests. We concluded that the five tests are equivalent and can be used interchangeably to assess the indirect VO2max


Assuntos
Humanos , Masculino , Adolescente , Adulto Jovem , Adulto , Consumo de Oxigênio/fisiologia , Exercício Físico/fisiologia , Voluntários Saudáveis/estatística & dados numéricos , Análise de Variância
2.
Neurología (Barc., Ed. impr.) ; 32(5): 278-283, jun. 2017. ilus, tab, graf
Artigo em Espanhol | IBECS | ID: ibc-163623

RESUMO

Introducción: Las áreas motoras corticales no solo son influenciadas por aferencias sensitivas periféricas y áreas de asociación prefrontales, sino también por los ganglios basales, específicamente el estriado. El estriado dorsomedial (EDM) y el estriado dorsolateral están involucrados en el aprendizaje espacial y el aprendizaje estímulo-respuesta; sin embargo, cada una de estas zonas pudiera mediar distintos componentes del aprendizaje. El propósito del estudio es determinar el efecto de la lesión electrolítica del EDM sobre el aprendizaje y ejecución de la conducta locomotora y sexual en ratas macho. Método: Una vez que los sujetos aprendieron a ejecutar las pruebas motoras de equilibrio, laberinto, rampa de ascenso y la conducta sexual, se realizó la lesión electrolítica del EDM. Cinco días después se realizaron las pruebas en 2 ocasiones más y se compararon las latencias de ejecución de cada prueba. Resultados: Después de la lesión, los valores promedio de latencia, incrementaron durante la ejecución de las pruebas de laberinto y equilibrio. Sin embargo, los valores promedio en la prueba rampa y conducta sexual, no aportaron efectos contrastantes entre los grupos. Conclusiones: La lesión electrolítica del EDM modifica la ejecución de la actividad locomotora (prueba de laberinto y equilibrio), pero no la ejecución de la conducta sexual (AU)


Introduction: Cortical motor areas are influenced not only by peripheral sensory afferents and prefrontal association areas, but also by the basal ganglia, specifically the striatum. The dorsomedial striatum (DMS) and dorsolateral striatum are involved in both spatial and stimulus-response learning; however, each of these areas may mediate different components of learning. The aim of the study is to determine the effect of electrolytic lesion to the DMS on the learning and performance of sexual behaviour and locomotor activity in male rats. Method: Once the subjects had learned to perform motor tests of balance, maze navigation, ramp ascent, and sexual behaviour, they underwent electrolytic lesion to the DMS. Five days later, the tests were repeated on 2 occasions and researchers compared performance latencies for each test. Results: Average latency values for performance on the maze and balance tests were higher after the lesion. However, the average values for the ramp test and for sexual behaviour did not differ between groups. Conclusions: Electrolytic lesion of the DMS modifies the performance of locomotor activity (maze test and balance), but not of sexual behavior (AU)


Assuntos
Animais , Ratos , Corpo Estriado/lesões , Comportamento Sexual , Locomoção/fisiologia , Ratos/fisiologia , Aprendizagem em Labirinto/fisiologia , Eletrólise/efeitos adversos , Lesão Encefálica Crônica/fisiopatologia
3.
Neurologia ; 32(5): 278-283, 2017 Jun.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-26774412

RESUMO

INTRODUCTION: Cortical motor areas are influenced not only by peripheral sensory afferents and prefrontal association areas, but also by the basal ganglia, specifically the striatum. The dorsomedial striatum (DMS) and dorsolateral striatum are involved in both spatial and stimulus-response learning; however, each of these areas may mediate different components of learning. The aim of the study is to determine the effect of electrolytic lesion to the DMS on the learning and performance of sexual behaviour and locomotor activity in male rats. METHOD: Once the subjects had learned to perform motor tests of balance, maze navigation, ramp ascent, and sexual behaviour, they underwent electrolytic lesion to the DMS. Five days later, the tests were repeated on 2 occasions and researchers compared performance latencies for each test. RESULTS: Average latency values for performance on the maze and balance tests were higher after the lesion. However, the average values for the ramp test and for sexual behaviour did not differ between groups. CONCLUSIONS: Electrolytic lesion of the DMS modifies the performance of locomotor activity (maze test and balance), but not of sexual behaviour.


Assuntos
Locomoção , Neostriado/fisiopatologia , Comportamento Sexual , Animais , Feminino , Masculino , Aprendizagem em Labirinto/fisiologia , Ratos , Ratos Wistar
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