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Search Results: 1 - 10 of 3334 matches for " Vaquero-Cristóbal "
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Efecto de un Programa de Estiramientos de la Musculatura Isquiosural en Futbolistas
Vaquero-Cristóbal,Raquel; Muyor,José María; Alacid,Fernando; López-Mi?arro,Pedro A;
International Journal of Morphology , 2012, DOI: 10.4067/S0717-95022012000300049
Abstract: the objective was to determine the influence of hamstring stretching program on hamstring extensibility in soccer players. seventeen amateur soccer players (mean age: 25.12 ± 4.16 years) and 19 sedentary subjects (control group) (mean age: 24.26 ± 5.64 years) were recruited. the soccer players group performed a hamstring stretching program during the four weekly training sessions for a period of 16 weeks. the stretching program included four exercises and each session consisted of 2 sets of each exercise. the control group did not participate in any hamstring-stretching or physical exercise program. hamstring muscle extensibility was determined by active straight leg raise angle before (pre-test), at 8 weeks (intermediate-test) and after the 16 weeks (post-test) hamstring-stretching program. significant improvements (p < 0.001) were found in slr angles for the experimental group in post-test for both limbs (68.90 ± 9.04 and 77.80 ± 8.25 in the right leg; 66.10 ± 8.15 and 77.10 ± 7.77 in the left leg, respectively). the slr values decreased between measures in sedentary subjects. active straight leg raise values of the soccer players were significantly higher in all measures. this study indicates that a stretching program performed at finish of training sessions increases the hamstring extensibility in soccer players, reducing the frequency of players with reduced hamstring extensibility.
Efecto de un Programa de Estiramientos de la Musculatura Isquiosural en Futbolistas Effect of Hamstring Stretching Program in Soccer Players
Raquel Vaquero-Cristóbal,José María Muyor,Fernando Alacid,Pedro A López-Mi?arro
International Journal of Morphology , 2012,
Abstract: El objetivo fue determinar la influencia de un programa de estiramientos de la musculatura isquiosural en la extensibilidad de jugadores de fútbol. Un total de 17 futbolistas de 3 división (media de edad: 25,12 ± 4,16 a os) y 19 sujetos sedentarios (media de edad: 24,26 ± 5,64 a os) (grupo control) participaron voluntariamente en el estudio. El grupo de futbolistas realizó, durante un periodo de 16 semanas, un plan específico de estiramientos de la musculatura isquiosural, que fue incluido dentro de su plan de entrenamiento, realizando dos series de cuatro estiramientos en las cuatro sesiones semanales de entrenamiento. El grupo control estuvo compuesto por adultos jóvenes varones que no realizaban actividad física alguna. A todos ellos se les valoró la extensibilidad isquiosural al inicio del programa (pre-test), a las 8 semanas (test intermedio) y al finalizar el programa (16 semanas, post-test) mediante el test de elevación de la pierna recta activo (EPR). Se encontró una mejora significativa (p < 0,001) en los valores obtenidos por los futbolistas entre el pre-test y el post-test en ambos miembros (68,90 ± 9,04 y 77,80 ± 8,25 en la pierna derecha; 66,10 ± 8,15 y 77,10 ± 7,77 en la izquierda, respectivamente). También se encontraron diferencias entre la valoración intermedia y el post-test (p < 0,016). Respecto al grupo de sedentarios, los valores del EPR se redujeron paulatinamente entre las tres mediciones. En todas las valoraciones realizadas, los futbolistas alcanzaron valores angulares significativamente superiores respecto a los sujetos sedentarios. La implementación de un programa específico de estiramientos de la musculatura isquiosural, al finalizar las sesiones de entrenamiento, en jugadores de fútbol, produce mejoras en la extensibilidad de esta musculatura, reduciéndose los casos de jugadores con una extensibilidad isquiosural reducida. The objective was to determine the influence of hamstring stretching program on hamstring extensibility in soccer players. Seventeen amateur soccer players (mean age: 25.12 ± 4.16 years) and 19 sedentary subjects (control group) (mean age: 24.26 ± 5.64 years) were recruited. The soccer players group performed a hamstring stretching program during the four weekly training sessions for a period of 16 weeks. The stretching program included four exercises and each session consisted of 2 sets of each exercise. The control group did not participate in any hamstring-stretching or physical exercise program. Hamstring muscle extensibility was determined by active straight leg raise angle before (pre-test), at 8 wee
A Pure Capital Market Complementarity between Immigrants and Natives  [PDF]
Adolfo Cristóbal Campoamor
Modern Economy (ME) , 2015, DOI: 10.4236/me.2015.612118
Abstract: This work presents a model aiming to evaluate the impact of rural-urban migration on the aggregate stock of loanable funds and investment by the urban population. Much higher investment costs for immigrants in cities prevent their acquisition of either human or physical capital. That is the reason why immigrants self-select as net lenders and affect urban labor earnings by means of the availability of new loanable funds for investment. This reduces the local interest rates and facilitates urban aggregate investment, especially by the new generations of natives. As a result of that, the aggregate labor income of natives increases unambiguously with the size of new immigration waves.
Environmental Sustainability Assessment of Electricity From Fossil Fuel Combustion: Carbon Footprint  [PDF]
Jorge Cristóbal, Jonathan Albo, Angel Irabien
Low Carbon Economy (LCE) , 2010, DOI: 10.4236/lce.2010.12011
Abstract: Emissions of greenhouse gases from electricity production should be reduced since climate change has became a big concern in developed countries. Carbon footprint is used as environmental index measuring the emissions that have effect on global warming and shows that secondary footprint has an important relevance in the final emission factor. To achieve sustainability in electricity production is required the consideration and evaluation of all relevant environ- mental impacts at the same time. Reduction in CO2 emissions is justified since clean combustion is achieved and global warming is the main contributor to global impacts.
Mapas mentales, sentido de lugar y procesos migratorios: la comunidad mexicana en Albuquerque (Nuevo México)
Mendoza,Cristóbal;
Cuadernos de Geografía - Revista Colombiana de Geografía , 2012,
Abstract: this essay explores the experiences and representations of places, as well as the sense of place, in order to understand the migratory and decision-making processes of mexican immigrants in albuquerque (new mexico). methodologically, the article focuses on an analysis of immigrants' mental maps and spatial discourses. as for the results, the strongest senses of place are found at the micro level, where identification with public spaces is associated with radical changes in the immigrants' lives. finally, the representations of mexico and the united states are key to understanding immigrants' intentions regarding their length of stay.
Espacios de innovación y transformación: el caso de IDEO
García,Cristóbal;
ARQ (Santiago) , 2007, DOI: 10.4067/S0717-69962007000200009
Abstract: work places are conceived as continuous and flexible processes, in which the actors involved develop creative organizational practices based on the flexibility for creating and recreating work spaces. the relationship between the work space, collaboration, creativity and innovation creates a climate of closeness and confidence that improves the performance of individuals and organizations.
Caminos de la Arqueología: de la violencia epistémica a la relacionalidad
Gnecco, Cristóbal;
Boletim do Museu Paraense Emílio Goeldi. Ciências Humanas , 2009, DOI: 10.1590/S1981-81222009000100003
Abstract: archaeology has travelled many roads; some of them do not diverge but converge (they are changes of notation, not of content). an exercise on extreme simplification would posit that two of those roads, may be the most visible ones in the last years, lead to distant loci: (a) to the reproduction of epistemic violence against other societies and their histories (a modern project, to be sure, but also multicultural); and (b) to interdiscursive understanding. this paper is a sketch of the findings that anyone venturing into those roads could eventually make.
Hacia una narrativa de la naturaleza: la psicología ante el reto sustentable
Bravo F,Cristóbal;
Polis (Santiago) , 2010, DOI: 10.4067/S0718-65682010000200011
Abstract: considerable scientific research in different fields has been motivated by sustainable development model. such is the case of psychology which looks for behavioral andmental factors that take place in human-nature relations. even though the emerging field of environmental psychology has proposed itself stimulating sustainable conducts, it has been working within epistemological frameworks that tend to maintain modern worldview approaches related to environmental damage. narrative approaches of psychology are suggested here as an alternative method capable of subverting the epistemological order.
SUPUESTOS CONFLICTOS DE DERECHOS HUMANOS Y LA ESPECIFICACIóN DE LA ACCIóN MORAL
Orrego Sanchez,Cristóbal;
Revista chilena de derecho , 2010, DOI: 10.4067/S0718-34372010000200005
Abstract: abstract: the author criticises legal reasoning that is based on so-called "conflicts of human rights". he suggests, instead, to reason practically on the basis of the identification of species of acts.
DERECHO Y VIOLENCIA: REESCRITURAS EN TORNO AL PLURELARISMO JURíDICO
Carmona Caldera,Cristóbal;
Revista de derecho (Valdivia) , 2009, DOI: 10.4067/S0718-09502009000200001
Abstract: an important element in the current conflicts between the state and the indigenous peoples in chile is related to the belief that national law is intrinsically above the indigenous peoples own law. this has generated the lack of its effective recognition in our legal system, which in turn intensifies the general state of intercultural injustice that these groups still live in. therefore, the present article suggests a review of the aforementioned premise of superiority, investigating the foundations of authority of state law, and proposes a new account of these matters, where these are intricately linked to violence. this new account should allow the opening of the official legal system to the basic fact of legal pluralism.
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