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1.
Rev. andal. med. deporte ; 6(4): 146-150, dic. 2013. tab, ilus
Article in Spanish | IBECS | ID: ibc-118597

ABSTRACT

Objetivo. El presente estudio evaluó la validez y reproducibilidad de dos modelos de receptores para el Global Positioning System (GPS). La validez fue evaluada comparando la distancia registrada por los receptores con la distancia conocida de estos trayectos. Método. Seis jóvenes tenistas (177,6 ± 6,2 cm; 76,6 ± 3,2 kg) recorrieron tres trayectos: 1) 100 m en la pista de atletismo (número de "disparos" = 120); 2) 400 m en la pista de atletismo (número de "disparos" = 60) y 3) 100 m con cambios de dirección (número de "disparos" = 120), utilizando los equipos Garmin© Forerunner 405 y Polar© RS800. Resultados. En los trayectos sin cambios de dirección (100 y 400 m), a través de la ANOVA two way (distancia y velocidad) no se detectaron diferencias entre la distancia conocida y las distancias registradas por los receptores analizados (p > 0,05). En el trayecto de 100 m con cambios de dirección, se observaron diferencias entre la distancia conocida y las registradas tanto por el Polar© RS800 como por el Garmin© Forerunner 405 (p < 0,05). También se verificó la diferencia en las distancias registradas por el Polar® RS800 y por el Garmin© Forerunner 405 para el trayecto realizado con cambios de dirección (p < 0,05). Conclusión. A través de los datos, se puede afirmar que los receptores para GPS evaluados presentaron un nivel aceptable de precisión para distancias recorridas sin cambios de dirección, sin embargo, la precisión de estos equipos en trayectos con cambios de dirección fue limitada (AU)


Objective. The present study evaluated the reproducibility and validity of two models of receivers for the Global Positioning System (GPS). Validity was assessed by comparing the distance recorded by the GPS receivers with the known distance. Method. Six young players (177.6 ± 6.2 cm; 76.6 ± 3.2 kg) performed three routes with different characteristics: 1) 100 m in the athletics track (number of "sprints" = 120); 2) 400 m in the athletics track (number of "sprints" = 60) and 3) 100 m with changes of direction (number of "sprints" = 120), using equipment Garmin© Forerunner 405 and Polar© RS800. Results. Regarding linear routes (100 and 400 m), no differences were detected using ANOVA two-way (distance and speed) between the known distance and distance recorded by GPS receivers analyzed (p > 0.05). Regarding non-linear route of, significant differences were observed between the known distance and recorded distance by the GPS receivers (p < 0.05). There was also a significant difference between the distance recorded by Polar© RS800 and Garmin© Forerunner 405 for the non-linear route (p < 0.05). Analysis of the limits of agreement reinforces the limitation of equipment in relation to accuracy for the non-linear route. Conclusion. These data suggest that the GPS receivers evaluated showed acceptable level of accuracy for linear routes, however, the accuracy of such devices on non-linear routes was limited (AU)


Subject(s)
Humans , Male , Female , Young Adult , Tennis/education , Tennis/ethics , Tennis/physiology , Sports/physiology , Racquet Sports/education , Racquet Sports/physiology , Racquet Sports/statistics & numerical data , Physical Education and Training/methods , Physical Education and Training/organization & administration , Physical Education and Training/trends , Reproducibility of Results , Racquet Sports/history , Racquet Sports/standards , Racquet Sports/trends , Analysis of Variance , Physical Education and Training/statistics & numerical data , Physical Education and Training/standards , 34600/methods , Resistance Training/methods , Resistance Training/trends
2.
Rev. andal. med. deporte ; 6(3): 115-119, sept. 2013.
Article in Spanish | IBECS | ID: ibc-113973

ABSTRACT

Objetivo. O objetivo do estudo foi investigar a influência da capacidade de desempenhar sucessivos esforços de alta intensidade (CDEAI) na resposta da carga interna de treinamento (CIT) em jovens jogadores de basquetebol. Método. Doze jogadores de basquetebol fizeram parte da investigação (18,6 ± 0,5 anos, 192 ± 6,5 cm e 88,8 ± 14,5 kg). O estudo foi realizado em quatro semanas consecutivas de treinamento. As duas primeiras semanas pertencentes ao período preparatório (PP) e as duas últimas ao período competitivo (PC). O método da Percepção Subjetiva de Esforço da sessão (PSE da sessão) foi utilizado para quantificar a carga interna de treinamento (CIT) em todas as sessões de treinamento. Antes (Pre) e após (Pós) o período experimental de 4 semanas, os atletas realizaram o teste de Yo-Yo (Intermittnet Endurance test Level 2; Yo-Yo IE2). Para a análise dos dados se utilizou o coeficiente de correlação de Pearson (Yo-Yo IE2 [Pre e Pós] x CIT [Geral (PP e PC), PP e PC])(P < 0,05). Resultados. Correlações negativas, classificadas como "muito grande" entre os resultados do Yo-Yo IE2 Pre e CIT no PP (r = -0,81), PC (r = -0,72) e para o período como todo (Geral) (PP e PC) (r = -0,80), foram observadas. Correlação classificada como "muito grande" foi observada entre o desempenho no Yo-Yo IE2 Pós e a CIT durante o PP (r = -0,83), grande para o PC (r = -0,66) e muito grande para o Geral (r = -0,78). Conclusão. Os resultados do presente estudo sugerem a existência de uma forte correlação entre a CDEAI e CIT, indicando assim, a importância de se adotar um monitoramento integrado dessas variáveis, objetivando o ajuste regular da carga de treinamento(AU)


Objective. The aim of this study was to investigate the influence of the ability to perform high intensity effort (HIE) on internal training load (CIT) responses in young basketball players. Method. Twelve male basketball players took part of the investigation (18.6 ± 0.5 years, 192 ± 6.5 cm e 88.8 ± 14.5 kg). The investigation lasted four weeks, with two weeks of a preparatory period (PP) and two weeks of a competitive period (PC). Session ratings of perceived exertion (session-RPE) method was used to quantify internal training load in every training session. Athletes performed the Yo-Yo Intermittent Endurance Test level 2 (Yo-Yo IE2) before and after the experimental period (4 weeks). For data analysis, Pearson correlation coefficient was used (Yo-Yo IE2 [PRE and POST] x CIT [General (PP and PC), PP and PC]) (p < 0.05). Results. Negative correlation coefficients, classified as "large" to very large", were observed between the performance in the Yo-Yo IE2 PRE and ITL in PP (r = -0.81), CP (r = -0.72), and in the whole experimental period (PP and CP) (r = -0.80) conditions. Correlation coefficients, classified as "large" to "very large", were also observed between the performance in the Yo-Yo IR2 POST and ITL during PP (r = -0.83), CP (r = -0.66) and General (r = -0.78) conditions. Conclusion. The results of the present study suggest the existence of a strong correlation between the ability to perform HIE and ITL, thus indicating the importance of adopting an integrated monitoring of these variables, aiming to conduct regular adjustments on training load(AU)


Subject(s)
Humans , Male , Female , Basketball/physiology , Basketball/trends , Exercise Test/methods , Exercise Test/standards , Exercise Test , Physical Exertion/physiology , Basketball/education , Basketball/standards , Athletes/education , Athletes/psychology , Fujita-Pearson Scale
3.
Rev. andal. med. deporte ; 6(2): 85-89, jun. 2013.
Article in Portuguese | IBECS | ID: ibc-113104

ABSTRACT

El estudio tuvo como objetivo examinar las correlaciones entre la dificultad de partidos (dificultad prevista al principio de la temporada [DP] y la dificultad actualizada a cada partido [DA]) y la carga interna de entrenamiento en microciclo anterior al partido (CIT-A) de 12 jugadores profesionales de baloncesto (25,3 ± 4,8, masa corporal 97,6 ± 14,9 kg, altura de 195,8 ± 10,2 cm) durante una temporada de competición. CIT-A se determinó por el método de la PSE del sesión. La relación entre DP, DA y CIT-A se analizó mediante el coeficiente de correlación de Pearson. Se encontró fuerte correlación (r = 0,86) entre DA y PD (p <0,05), así como entre la DP y CIT-A (r = -0,59) y DA y CIT-A (r = -0.65). El coeficiente más alto de correlación entre DA y CIT-A sugiere que la dificultad prevista al comienzo de la temporada (DP) debe actualizarse durante la temporada de competición, y por lo tanto puede proporcionar información valiosa para la planificación y control de las cargas de entrenamiento en microciclos que preceden a los partidos oficiales(AU)


This study aimed to examine the relationships between the difficulty of the matches (difficulty scheduled at the beginning of the season [DBS] and the in-season match difficulty [DIS]) and the weekly internal training load (ITL) in twelve professional male basketball players (25.3 ± 4.8 years, 97.6 ± 14.9 kg, and 195.8 ± 10.2 cm) during a in-season period. DBS was determined before the commencement of the competitive season, and DIS due to reassessing DBS on a weekly basis. ITL was determined by means of session-RPE method. Significant correlations (p < 0.05) were verified between DBS and DIS (r = 0.86), DBS and ITL (- 0.59), and DIS and ITL (- 0.65). The greater coefficient of relationship between DIS and ITL suggest a key role of reassessing the difficulty of the matches on a weekly basis to provide appropriate information to coaches regard planning and monitoring in-season training loads(AU)


Subject(s)
Humans , Male , Female , Young Adult , Basketball/physiology , Exercise Test/instrumentation , Exercise Test/methods , Physical Exertion/physiology , Sports/physiology , Basketball/psychology , Basketball/trends , Basketball/education , Sports/education , Sports/standards , Body Mass Index
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