Luis Javier Chirosa Ríos

Estudio comparativo de la capacidad de realizar sprints repetidos entre jugadores de balonmano y baloncesto amateurs y profesionales

Introduccion y objetivos: Los deportes de equipo requieren jugadores que puedan realizar un numero elevado de sprints cortos, intercalados con periodos de recuperacion o de intensidad, y a este tipo de esfuerzos se le ha denominado capacidad de realizar sprints repetidos (RSA). Aunque la importancia de estos esfuerzos esta constatada en deportes de equipo, la diferencia entre deportistas de distintas disciplinas debe ser estudiada debido a la variabilidad de esfuerzos en los numerosos deportes colectivos. La presente investigacion va encaminada a determinar las diferencias y analogias en test RSA entre deportistas amateurs y profesionales de deportes colectivos distintos como son el baloncesto y balonmano. Metodo: Se evaluaron 4 equipos, 2 de baloncesto y 2 de balonmano (divididos en amateurs y profesionales). El test RSA realizado fue 8 × 30 m con 25 s de recuperacion, en pista con celulas fotoelectricas. Resultados: Los resultados obtenidos no muestran diferencias significativas en las variables cineticas entre los diferentes grupos. Si se encontraron diferencias entre baloncesto profesional y balonmano profesional (p < 0,05) en las variables mejor sprint y aceleracion 0-10 m. Se observo un descenso en la potencia (entre el 20,51 y el 23,37%) entre el sprint 1 y 8 en los 4 grupos, pero no hubo diferencias entre ellos. Conclusiones: El tipo de esfuerzos realizados por deportistas de deportes de cooperacion y oposicion de disciplinas semejantes (como baloncesto y balonmano) es similar en el test RSA, debido a que los esfuerzos realizados en competicion se asemejan mucho entre deportes y con los esfuerzos realizados en el protocolo utilizado.

Acute effect of a complex training protocol of back squats on 30-m sprint times of elite male military athletes.

[Purpose] The aim of this study was to determine the acute effect temporal of a complex training protocol on 30 meter sprint times. A secondary objective was to evaluate the fatigue indexes of military athletes. [Subjects and Methods] Seven military athletes were the subjects of this study. The variables measured were times in 30-meter sprint, and average power and peak power of squats. The intervention session with complex training consisted of 4 sets of 5 repetitions at 30% 1RM + 4 repetitions at 60% 1RM + 3 repetitions of 30 meters with 120-second rests. For the statistical analysis repeated measures of ANOVA was used, and for the post hoc analysis, student’s t-test was used. [Results] Times in 30 meter sprints showed a significant reduction between the control set and the four experimental sets, but the average power and peak power of squats did not show significant changes. [Conclusion] The results of the study show the acute positive effect of complex training, over time, in 30-meter sprint by military athletes. This effect is due to the post activation potentiation of the lower limbs’ muscles in the 30 meters sprint.

Effect of two complex training protocols of back squats in blood indicators of muscular damage in military athletes.

[Purpose] The aim of this study was to determine the variations in the blood muscular damage indicators post application of two complex training programs for back squats. [Subjects and Methods] Seven military athletes were the subjects of this study. The study had a quasi-experimental cross-over intra-subject design. Two complex training protocols were applied, and the variables to be measured were cortisol, metabolic creatine kinase, and total creatine kinase. For the statistical analysis, Student’s t-test was used. [Results] Twenty-four hours post effort, a significant decrease in cortisol level was shown for both protocols; however, the metabolic creatine kinase and total creatine kinase levels showed a significant increase. [Conclusion] Both protocols lowered the indicator of main muscular damage in the blood supply (cortisol). This proved that the work weight did not generate significant muscular damage in the 24-hour post-exercise period.

Asociación predictiva entre parámetros de condición física y dimensiones de calidad de vida relacionada con la salud en adultos mayores chilenos insertos en la comunidad

BACKGROUND There is no conclusive evidence about the association between physical fitness (PF) and health related quality of life (HRQOL) in older adults. AIM To seek for an association between PF and HRQOL in non-disabled community-dwelling Chilean older adults. MATERIAL AND METHODS One hundred and sixteen subjects participated in the study. PF was assessed using the Senior Fitness Test (SFT) and hand grip strength (HGS). HRQOL was assessed using eight dimensions provided by the SF-12v2 questionnaire. Binary multivariate logistic regression models were carried out considering the potential influence of confounder variables. RESULTS Non-adjusted models, indicated that subjects with better performance in arm curl test (ACT) were more likely to score higher on vitality dimension (OR > 1) and those with higher HGS were more likely to score higher on physical functioning, bodily pain, vitality and mental health (OR > 1). The adjusted models consistently showed that ACT and HGS predicted a favorable perception of vitality and mental health dimensions respectively (OR > 1). CONCLUSIONS HGS and ACT have a predictive value for certain dimensions of HRQOL.BACKGROUND There is no conclusive evidence about the association between physical fitness (PF) and health related quality of life (HRQOL) in older adults. AIM To seek for an association between PF and HRQOL in non-disabled community-dwelling Chilean older adults. MATERIAL AND METHODS One hundred and sixteen subjects participated in the study. PF was assessed using the Senior Fitness Test (SFT) and hand grip strength (HGS). HRQOL was assessed using eight dimensions provided by the SF-12v2 questionnaire. Binary multivariate logistic regression models were carried out considering the potential influence of confounder variables. RESULTS Non-adjusted models, indicated that subjects with better performance in arm curl test (ACT) were more likely to score higher on vitality dimension (OR > 1) and those with higher HGS were more likely to score higher on physical functioning, bodily pain, vitality and mental health (OR > 1). The adjusted models consistently showed that ACT and HGS predicted a favorable perception of vitality and mental health dimensions respectively (OR > 1). CONCLUSIONS HGS and ACT have a predictive value for certain dimensions of HRQOL.Background: There is no conclusive evidence about the association between physical fitness (PF) and health related quality of life (HRQOL) in older adults. Aim: To seek for an association between PF and HRQOL in non-disabled community-dwelling Chilean older adults. Material and Methods: One hundred and sixteen subjects participated in the study. PF was assessed using the Senior Fitness Test (SFT) and hand grip strength (HGS). HRQOL was assessed using eight dimensions provided by the SF-12v2 questionnaire. Binary multivariate logistic regression models were carried out considering the potential influence of confounder variables. Results: Non-adjusted models, indicated that subjects with better performance in arm curl test (ACT) were more likely to score higher on vitality dimension (OR>1) and those with higher HGS were more likely to score higher on physical functioning, bodily pain, vitality and mental health (OR>1). The adjusted models consistently showed that ACT and HGS predicted a favorable perception of vitality and mental health dimensions respectively (OR>1). Conclusions: HGS and ACT have a predictive value for certain dimensions of HRQOL.

La evaluación en educación física a través del "Game Performance Assessment Instrument" (GPAI)

espanolEl uso de herramientas evaluativas del rendimiento deportivo que contribuyan a mejorar los procesos de ensenanza no esta normalizado. Los objetivos de este articulo fueron obtener una vision actualizada del uso Game Perfomance Assessment Instrument (GPAI); y analizar su uso en la literatura cientifica para establecer nuevas lineas de investigacion. Se utilizaron las bases de datos WEB OF SCIENCE, SPORTDISCUS, SCOPUS y PROQUEST, recogiendo articulos publicados entre enero de 1998 y mayo de 2015. De la muestra inicial de 582 investigaciones, 34 fueron analizadas tras aplicar los criterios de inclusion/exclusion. En 15, el GPAI ha servido para ver el progreso de los sujetos en distintos deportes tras periodos de ensenanza aprendizaje. Se ha usado principalmente en el ambito educativo y con deportes de invasion. En conclusion, debido a las ventajas que presenta, su uso deberia estar mas extendido para dar solucion al problema que la evaluacion representa para muchos profesores. EnglishThe use of assessment tools for sports performance which contributes to improve the process of teaching is not formalized. The aims of this article were: to obtain an updated view of the Game Performance Assessment Instrument (GPAI) and, to analyze its use in scientific literature to establish new routes for investigation. The databases used were WEB OF SCIENCE, SPORTDISCUS, SCOPUS and PROQUEST, gathering articles from January of 1998 to May of 2015. From the initial sample of 582 studies, 34 were analyzed after applying the criteria of inclusion and exclusion. In 15, the GPAI has served to demonstrate the progress of the subjects in different sports after periods of teaching- learning. It has been used mainly in the education field and with invasion sports. In conclusion, due to the benefits that its presents, its use should be further extended to solve the problem that assessment represents to many teachers.Facultad de Ciencias de la Actividad Fisica y el Deporte, Universidad de GranadaCorreo electronico: lchirosa@ugr.esRESUMENEl uso de herramientas evaluativas del rendimiento deportivo que contribuyan a mejorar los procesos de ensenanza no esta normalizado. Los objetivos de este articulo fueron obtener una vision actualizada del uso Game Perfomance Assessment Instrument (GPAI); y analizar su uso en la literatura cientifica para establecer nuevas lineas de investigacion. Se utilizaron las bases de datos WEB OF SCIENCE, SPORTDISCUS, SCOPUS y PROQUEST, recogiendo articulos publicados entre enero de 1998 y mayo de 2015. De la muestra inicial de 582 investigaciones, 34 fueron analizadas tras aplicar los criterios de inclusion/exclusion. En 15, el GPAI ha servido para ver el progreso de los sujetos en distintos deportes tras periodos de ensenanza aprendizaje. Se ha usado principalmente en el ambito educativo y con deportes de invasion. En conclusion, debido a las ventajas que presenta, su uso deberia estar mas extendido para dar solucion al problema que la evaluacion representa para muchos profesores.

The assessment in physical education through the "Game Perfomance Assessment Instrument" (GPAI)

espanolEl uso de herramientas evaluativas del rendimiento deportivo que contribuyan a mejorar los procesos de ensenanza no esta normalizado. Los objetivos de este articulo fueron obtener una vision actualizada del uso Game Perfomance Assessment Instrument (GPAI); y analizar su uso en la literatura cientifica para establecer nuevas lineas de investigacion. Se utilizaron las bases de datos WEB OF SCIENCE, SPORTDISCUS, SCOPUS y PROQUEST, recogiendo articulos publicados entre enero de 1998 y mayo de 2015. De la muestra inicial de 582 investigaciones, 34 fueron analizadas tras aplicar los criterios de inclusion/exclusion. En 15, el GPAI ha servido para ver el progreso de los sujetos en distintos deportes tras periodos de ensenanza aprendizaje. Se ha usado principalmente en el ambito educativo y con deportes de invasion. En conclusion, debido a las ventajas que presenta, su uso deberia estar mas extendido para dar solucion al problema que la evaluacion representa para muchos profesores. EnglishThe use of assessment tools for sports performance which contributes to improve the process of teaching is not formalized. The aims of this article were: to obtain an updated view of the Game Performance Assessment Instrument (GPAI) and, to analyze its use in scientific literature to establish new routes for investigation. The databases used were WEB OF SCIENCE, SPORTDISCUS, SCOPUS and PROQUEST, gathering articles from January of 1998 to May of 2015. From the initial sample of 582 studies, 34 were analyzed after applying the criteria of inclusion and exclusion. In 15, the GPAI has served to demonstrate the progress of the subjects in different sports after periods of teaching- learning. It has been used mainly in the education field and with invasion sports. In conclusion, due to the benefits that its presents, its use should be further extended to solve the problem that assessment represents to many teachers.Facultad de Ciencias de la Actividad Fisica y el Deporte, Universidad de GranadaCorreo electronico: lchirosa@ugr.esRESUMENEl uso de herramientas evaluativas del rendimiento deportivo que contribuyan a mejorar los procesos de ensenanza no esta normalizado. Los objetivos de este articulo fueron obtener una vision actualizada del uso Game Perfomance Assessment Instrument (GPAI); y analizar su uso en la literatura cientifica para establecer nuevas lineas de investigacion. Se utilizaron las bases de datos WEB OF SCIENCE, SPORTDISCUS, SCOPUS y PROQUEST, recogiendo articulos publicados entre enero de 1998 y mayo de 2015. De la muestra inicial de 582 investigaciones, 34 fueron analizadas tras aplicar los criterios de inclusion/exclusion. En 15, el GPAI ha servido para ver el progreso de los sujetos en distintos deportes tras periodos de ensenanza aprendizaje. Se ha usado principalmente en el ambito educativo y con deportes de invasion. En conclusion, debido a las ventajas que presenta, su uso deberia estar mas extendido para dar solucion al problema que la evaluacion representa para muchos profesores.

A avaliação da educação fisica atravez o " Game Perfomance Assessment Instrument" (GPAI)

espanolEl uso de herramientas evaluativas del rendimiento deportivo que contribuyan a mejorar los procesos de ensenanza no esta normalizado. Los objetivos de este articulo fueron obtener una vision actualizada del uso Game Perfomance Assessment Instrument (GPAI); y analizar su uso en la literatura cientifica para establecer nuevas lineas de investigacion. Se utilizaron las bases de datos WEB OF SCIENCE, SPORTDISCUS, SCOPUS y PROQUEST, recogiendo articulos publicados entre enero de 1998 y mayo de 2015. De la muestra inicial de 582 investigaciones, 34 fueron analizadas tras aplicar los criterios de inclusion/exclusion. En 15, el GPAI ha servido para ver el progreso de los sujetos en distintos deportes tras periodos de ensenanza aprendizaje. Se ha usado principalmente en el ambito educativo y con deportes de invasion. En conclusion, debido a las ventajas que presenta, su uso deberia estar mas extendido para dar solucion al problema que la evaluacion representa para muchos profesores. EnglishThe use of assessment tools for sports performance which contributes to improve the process of teaching is not formalized. The aims of this article were: to obtain an updated view of the Game Performance Assessment Instrument (GPAI) and, to analyze its use in scientific literature to establish new routes for investigation. The databases used were WEB OF SCIENCE, SPORTDISCUS, SCOPUS and PROQUEST, gathering articles from January of 1998 to May of 2015. From the initial sample of 582 studies, 34 were analyzed after applying the criteria of inclusion and exclusion. In 15, the GPAI has served to demonstrate the progress of the subjects in different sports after periods of teaching- learning. It has been used mainly in the education field and with invasion sports. In conclusion, due to the benefits that its presents, its use should be further extended to solve the problem that assessment represents to many teachers.Facultad de Ciencias de la Actividad Fisica y el Deporte, Universidad de GranadaCorreo electronico: lchirosa@ugr.esRESUMENEl uso de herramientas evaluativas del rendimiento deportivo que contribuyan a mejorar los procesos de ensenanza no esta normalizado. Los objetivos de este articulo fueron obtener una vision actualizada del uso Game Perfomance Assessment Instrument (GPAI); y analizar su uso en la literatura cientifica para establecer nuevas lineas de investigacion. Se utilizaron las bases de datos WEB OF SCIENCE, SPORTDISCUS, SCOPUS y PROQUEST, recogiendo articulos publicados entre enero de 1998 y mayo de 2015. De la muestra inicial de 582 investigaciones, 34 fueron analizadas tras aplicar los criterios de inclusion/exclusion. En 15, el GPAI ha servido para ver el progreso de los sujetos en distintos deportes tras periodos de ensenanza aprendizaje. Se ha usado principalmente en el ambito educativo y con deportes de invasion. En conclusion, debido a las ventajas que presenta, su uso deberia estar mas extendido para dar solucion al problema que la evaluacion representa para muchos profesores.

Análisis de los saques de lateral del Torneo de Rugby Seis Naciones 2013

El saque de lateral es una de las formas de reinicio del juego o fases de conquista en un partido de rugby cuantitativa y cualitativamente importante. En este articulo se realizo un estudio descriptivo de los saques de lateral en un torneo internacional de alto nivel. En segundo lugar, se estudiaron las diferencias en esta fase de juego entre los distintos equipos participantes y, finalmente, determinamos las variables que inciden en la conquista de la pelota. A partir de un conjunto inicial de variables se desarrollo, mediante la validacion con expertos, una herramienta para la observacion de los factores clave. La muestra estuvo constituida por 358 saques de lateral del Torneo Seis Naciones de 2013 que se investigaron mediante analisis de video. Los resultados han mostrado informacion relevante sobre las variables estudiadas (partido, equipo, casa/fuera, numero del saque lateral, iluminacion, lluvia, viento, tiempo, resultado, lado, zona, numero de jugadores, estructura previa, estructura de salto, posicion saltador, cambio de posicion, movimiento, amague, angulo, velocidad, tiempo vuelo, distancia, altura y conquista). Se encontraron diferencias entre los equipos en: el numero de jugadores, el angulo, el tiempo de vuelo y la altura. Por ultimo, entre todas las variables investigadas, encontramos que hay una mayor probabilidad de conquista cuando el tiempo de vuelo dura entre 0,36 y 0,84 s, y la distancia es entre 5 y 10 m.

Association of grip strength with gender age and handedness in 116 older people

Background: Hand grip strength could be influenced by gender, age and handedness. Aim: To describe differences in grip strength for age, gender and upper extremity handedness in non-disabled community-dwelling older adults. Material and methods: We studied 47 males aged 72.3 ± 5.6 years and 69 females 72.4 ± 6.0 years who were divided in two age groups (65-70 and ? 71 years old). Grip strength was determined by a standardized protocol using a hand dynamometer. Results: There was an inverse correlation between grip strength and age in both hands only among men (p?0.05). When analyzing both genders, there was a significant inverse correlation between grip strength and age only in the dominant hand (p?0.05). Strength was higher in the dominant hand in both genders (p?0.05). It was also higher in men, compared to women in the two age groups studied (p?0.05). Conclusions: Grip strength is higher in men than women, it decreases with age and is higher in the dominant hand.BACKGROUND Hand grip strength could be influenced by gender, age and handedness. AIM To describe differences in grip strength for age, gender and upper extremity handedness in non-disabled community-dwelling older adults. MATERIAL AND METHODS We studied 47 males aged 72.3 ± 5.6 years and 69 females 72.4 ± 6.0 years who were divided in two age groups (65-70 and ≥ 71 years old). Grip strength was determined by a standardized protocol using a hand dynamometer. RESULTS There was an inverse correlation between grip strength and age in both hands only among men (p ≤ 0.05). When analyzing both genders, there was a significant inverse correlation between grip strength and age only in the dominant hand (p ≤ 0.05). Strength was higher in the dominant hand in both genders (p ≤ 0.05). It was also higher in men, compared to women in the two age groups studied (p ≤ 0.05). CONCLUSIONS Grip strength is higher in men than women, it decreases with age and is higher in the dominant hand.Hand grip strength could be influenced by gender, age and handedness.To describe differences in grip strength for age, gender and upper extremity handedness in non-disabled community-dwelling older adults.We studied 47 males aged 72.3 ± 5.6 years and 69 females 72.4 ± 6.0 years who were divided in two age groups (65-70 and ≥ 71 years old). Grip strength was determined by a standardized protocol using a hand dynamometer.There was an inverse correlation between grip strength and age in both hands only among men (p ≤ 0.05). When analyzing both genders, there was a significant inverse correlation between grip strength and age only in the dominant hand (p ≤ 0.05). Strength was higher in the dominant hand in both genders (p ≤ 0.05). It was also higher in men, compared to women in the two age groups studied (p ≤ 0.05).Grip strength is higher in men than women, it decreases with age and is higher in the dominant hand.BACKGROUND Hand grip strength could be influenced by gender, age and handedness. AIM To describe differences in grip strength for age, gender and upper extremity handedness in non-disabled community-dwelling older adults. MATERIAL AND METHODS We studied 47 males aged 72.3 ± 5.6 years and 69 females 72.4 ± 6.0 years who were divided in two age groups (65-70 and ≥ 71 years old). Grip strength was determined by a standardized protocol using a hand dynamometer. RESULTS There was an inverse correlation between grip strength and age in both hands only among men (p ≤ 0.05). When analyzing both genders, there was a significant inverse correlation between grip strength and age only in the dominant hand (p ≤ 0.05). Strength was higher in the dominant hand in both genders (p ≤ 0.05). It was also higher in men, compared to women in the two age groups studied (p ≤ 0.05). CONCLUSIONS Grip strength is higher in men than women, it decreases with age and is higher in the dominant hand.

Fuerza prensil de mano y su asociación con la edad, género y dominancia de extremidad superior en adultos mayores autovalentes insertos en la comunidad: Un estudio exploratorio

Background: Hand grip strength could be influenced by gender, age and handedness. Aim: To describe differences in grip strength for age, gender and upper extremity handedness in non-disabled community-dwelling older adults. Material and methods: We studied 47 males aged 72.3 ± 5.6 years and 69 females 72.4 ± 6.0 years who were divided in two age groups (65-70 and ? 71 years old). Grip strength was determined by a standardized protocol using a hand dynamometer. Results: There was an inverse correlation between grip strength and age in both hands only among men (p?0.05). When analyzing both genders, there was a significant inverse correlation between grip strength and age only in the dominant hand (p?0.05). Strength was higher in the dominant hand in both genders (p?0.05). It was also higher in men, compared to women in the two age groups studied (p?0.05). Conclusions: Grip strength is higher in men than women, it decreases with age and is higher in the dominant hand.BACKGROUND Hand grip strength could be influenced by gender, age and handedness. AIM To describe differences in grip strength for age, gender and upper extremity handedness in non-disabled community-dwelling older adults. MATERIAL AND METHODS We studied 47 males aged 72.3 ± 5.6 years and 69 females 72.4 ± 6.0 years who were divided in two age groups (65-70 and ≥ 71 years old). Grip strength was determined by a standardized protocol using a hand dynamometer. RESULTS There was an inverse correlation between grip strength and age in both hands only among men (p ≤ 0.05). When analyzing both genders, there was a significant inverse correlation between grip strength and age only in the dominant hand (p ≤ 0.05). Strength was higher in the dominant hand in both genders (p ≤ 0.05). It was also higher in men, compared to women in the two age groups studied (p ≤ 0.05). CONCLUSIONS Grip strength is higher in men than women, it decreases with age and is higher in the dominant hand.Hand grip strength could be influenced by gender, age and handedness.To describe differences in grip strength for age, gender and upper extremity handedness in non-disabled community-dwelling older adults.We studied 47 males aged 72.3 ± 5.6 years and 69 females 72.4 ± 6.0 years who were divided in two age groups (65-70 and ≥ 71 years old). Grip strength was determined by a standardized protocol using a hand dynamometer.There was an inverse correlation between grip strength and age in both hands only among men (p ≤ 0.05). When analyzing both genders, there was a significant inverse correlation between grip strength and age only in the dominant hand (p ≤ 0.05). Strength was higher in the dominant hand in both genders (p ≤ 0.05). It was also higher in men, compared to women in the two age groups studied (p ≤ 0.05).Grip strength is higher in men than women, it decreases with age and is higher in the dominant hand.BACKGROUND Hand grip strength could be influenced by gender, age and handedness. AIM To describe differences in grip strength for age, gender and upper extremity handedness in non-disabled community-dwelling older adults. MATERIAL AND METHODS We studied 47 males aged 72.3 ± 5.6 years and 69 females 72.4 ± 6.0 years who were divided in two age groups (65-70 and ≥ 71 years old). Grip strength was determined by a standardized protocol using a hand dynamometer. RESULTS There was an inverse correlation between grip strength and age in both hands only among men (p ≤ 0.05). When analyzing both genders, there was a significant inverse correlation between grip strength and age only in the dominant hand (p ≤ 0.05). Strength was higher in the dominant hand in both genders (p ≤ 0.05). It was also higher in men, compared to women in the two age groups studied (p ≤ 0.05). CONCLUSIONS Grip strength is higher in men than women, it decreases with age and is higher in the dominant hand.