Browsing by Subject "External load"

Now showing 1 - 5 of 5
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    Effects of match location, match result and the quality of opposition in training load on a two-matches week in a top-class elite European soccer team
    (Universidad de Murcia. Servicio de publicaciones, 2021) Oliveira, Rafael; Brito, João Paulo; Loureiro, Nuno; Padinha, Vítor; Ferreira, Bruno; Mendes, Bruno
    The aim of this study is to analyseeffects of match location, match result and level of opponents in training load on the two following days of the match (MD+1; MD+2) in a top-class elite soccer European team. Nine players participated in this study. Total distance covered, distances of different exercise training zones (1–5) and average speed (AvS) were analysed. The session rating of perceived exertion (s-RPE) and Hooper Index scores (fatigue, stress, sleep quality, delayed onset muscle soreness-DOMS) were also analysed. Data was analysedregarding the two following days of a match. All weeks analysed included two matches. The results showed lower values of DOMS, effect size (ES)= 1.69, and fatigue ES=1.25, on the day following an away-win match than a home-defeat match against a bottom level opponent (all, p<0.05). It was also observed higher values of sleep quality ES=1.44, zone 1, ES=-4.35, and AvS, ES=-12.65, but lower values of s-RPE, ES=3.52, on the day following away-win match against a national top-level opponent (TLO). Finally, higher values for zone 3, ES=1.71, and lower value for AvS, ES=-6.06 were observed on the day following away-win match than a home-defeat match against champions league opponent number 1 (all, p<0.05). Total distance, AvS and zone 4 were higher after playing national opponents and/or champions league opponents in MD+1 than MD+2. The pattern of training load seems to be affected by situational variables. In general, the higher the quality of the opponents, the higher Hooper index in MD+1. S-RPE seems to be higher after playing a bottom level opponent when compared with the other opponents. Also, after playing national opponents, total distance, zones 1 and 4 were higher than against international opponents.
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    Open Access
    Impact of contextual factors on external load during a congested-fixture tournament in elite U'18 basketball players
    (Frontiers Media, 2019-05-15) Pino Ortega, José; Rojas-Valverde, Daniel; Gómez Carmona, Carlos David; Bastida Castillo, Alejandro; Hernández Belmonte, Alejandro; García Rubio, Javier; Yuzo Nakamura, Fábio; Ibáñez, Sergio José; Actividad Física y Deporte
    An understanding of basketball physical demands during official matches is fundamental for designing specific training, tactical, and strategic plans as well as recovery methods during congested fixture periods. Such assessments can be performed using wearable indoor time motion tracking systems. The purpose of this study was to analyze the time-motion profile of under 18-years of age (U’18) basketball players and compare their physical demands in relation to team ranking, playing position, match periods and consecutive matches during a 7-day tournament. Relative Distance (RD), percentage of High-Intensity Running (%HIR), Player Load (PL), Acceleration (Acc), Deceleration (Dec), Peak Speed (PSpeed), and Peak Acceleration (PAcc) were recorded from 94 players (13 centers, 47 forwards, and 34 guards) belonging to eight elite teams (age:17.6 ± 0.8 years; height: 1.91 ± 0.08 m; body mass: 82.5 ± 8.8 kg). WIMU PROTM inertial measurement units with ultra-wide band (UWB) indoor-tracking technology recorded 13 matches during the Adidas Next Generation Tournament Finals in the 2016–2017 season. Paired t-tests and one-way analyses of variance with omega partial squared (ωp2) and Cohen’s effect sizes (d) were used to analyze for differences between variables. According to team quality, the best teams had lower RD (p = 0.04; d = −0.14). Guards presented higher RD (p < 0.01; ω2p = 0.03), PSpeed (p < 0.01; ω 2p = 0.01) and PAcc (p < 0.01; ω2p = 0.02) compared to forwards and centers. The first quarter showed differences with higher RD (p < 0.01; ω 2p = 0.03), %HIR (p < 0.01; ω2p = 0.02), and PL(p < 0.01; ω2p = 0.04) compared to all other quarters. The third match of the tournament presented higher demands in RD (p < 0.01; ω2p = 0.03), HIR (p < 0.01; ω 2p = 0.01) and PL (p < 0.01; ω2p = 0.02) compared with the first two matches. This study showed that team quality, playing position, match period, and consecutive matches throughout an U’18 basketball tournament influenced the kinematic demands experienced by players during official competition. Therefore, each of these contextual factors should be considered in managing the load and developing individualized strategies for players in tournament settings.
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    Patrón fatiga-recuperación en una competición de alta densidad competitiva en Baloncesto Femenino Junior
    (2017) Vallés Ortega, Carlos; Fernández-Ozcorta, E.J.; Fierro Suero, S.
    El objetivo principal del trabajo fue analizar la fatiga y recuperación, mediante dos métodos de aproximación diferentes pero relacionados entre ellos; la carga interna y la carga externa. Los sujetos estudiados fueron el equipo Junior del C.B. Conquero, conformado éste por 12 jugadoras con edades comprendidas entre 16 y 18 años (M=17.08; SD=.67). Los datos se recolectaron durante el Campeonato de Andalucía Base de Baloncesto Femenino, celebrado en la temporada 2015 – 2016. Se estudiaron diferentes variables en cuanto carga interna como percepción subjetiva del esfuerzo, calidad de la recuperación, bienestar percibido y la valoración subjetiva del rendimiento post-partido. En cuanto a las variables de carga externa, se estudió la cantidad de minutos de juego de cada jugadora y la altura de salto. Los resultados principales indicaron que el bienestar percibido podría ser explicado por la calidad de la recuperación. Por otra parte, la valoración del rendimiento post partido podía ser explicada por el tiempo jugado y por la altura alcanzada en el test de salto. Se podría decir que las herramientas utilizadas, son válidas para monitorizar la fatiga y recuperación en un periodo de alta densidad competitiva en jugadoras juveniles.
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    El Ratio Agudo:Crónico en jugadores profesionales en baloncesto - ¿es una herramienta útil para el control de la carga?
    (Universidad de Murcia. Servicio de publicaciones, 2024) López Sierra, Pablo; García Rubio, Javier; Arenas Pareja, María de los Ángeles; Ibáñez, Sergio J.
    El incremento de competiciones en baloncesto profesional ha generado un creciente interés en el control de la carga de los jugadores. El Ratio Agudo: Crónicoes una herramienta muy común para controlar la variación de la carga en equipos profesionales. Sin embargo, se dan situaciones específicas en las que el RA:C está limitado si no se dispone de un histórico de los valores de carga. El objetivo de esta intervención fue analizar la carga de un equipo profesional a través del RA:C, incluyendo una revisión retrospectiva de su curva en aquellos escenarios en los que se desea obtener valores precisos de carga sin disponer de un histórico de las cargas de los jugadores. Un equipo profesional de diez jugadores participó en el estudio. Los dispositivos inerciales WIMU Pro fueron utilizados para cuantificar la carga de los jugadores durante el entrenamiento. Las variables de este estudio fueron la carga externa objetiva y subjetiva, la carga aguda y la carga crónica. Los resultados muestran la existencia de lesiones cuando la carga incrementa de manera desproporcional y figuran valores de riesgo de lesión en los jugadores. La incidencia lesional es del 20% cuando se superan los valores de riesgo. El estudio corrobora que el Ratio Agudo: Crónicoes una herramienta práctica y útil para monitorizar la carga y su evolución durante el mesociclo sin realizar posteriores análisis estadísticos. Además, es útil para conocer las cargas de manera eminentemente práctica, encontrando asociaciones no causales con la apariencia de lesiones. Se recomienda una revisión retrospectiva de la curva cuando se desea conocer los valores de riesgo lesional y no se dispone de datos de una preintervención
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    Worst case scenario match analysis and contextual variables in professional soccer players: a longitudinal study
    (Termedia Publishing, 2020-07-10) Oliva-Lozano, José M.; Rojas-Valverde, Daniel; Gómez-Carmona, Carlos D.; Fortes, Víctor; Pino-Ortega, José; Actividad Física y Deporte
    is study aimed to describe the worst-case scenarios (WCS) of professional soccer players by playing position in different durations and analyse WCS considering different contextual variables (match half, match location and match outcome). A longitudinal study was conducted in a professional soccer team. Data were collected from different WCS durations in the total distance (TD), high-speed running distance (HSRD), and sprinting distance (SPD). A mixed analysis of variance was performed to compare different WCS durations between playing positions and contextual variables, making pairwise comparisons by Bonferroni post hoc test Positional differences were found for TD (p < 0.01, ωp 2 = 0.02), HSRD (p < 0.01, ωp 2 = 0.01) and SPD (p < 0.01, ωp 2 = 0.02). There was a significant interaction when comparing WCS by match half in TD (F = 6.1, p < 0.01, ωp 2 = 0.07) but no significant differences in HSRD (p = 0.403, ωp 2 = 0) or SPD (p = 0.376, ωp 2 = 0). A significant interaction was identified when comparing WCS by match location in TD (F = 51.5, p < 0.01, ωp 2 = 0.14), HSRD (F = 19.15, p < 0.01, ωp 2 = 0.05) and SPD (F = 8.95, p < 0.01, ωp 2 = 0.01) as well as WCS by match outcome in TD (F = 36.4, p < 0.01, ωp 2 = 0.08), HSRD (F = 13.6, p < 0.01, ωp 2 = 0.04) and SPD (F = 7.4, p < 0.01, ωp 2 = 0.02). Positional differences exist in TD, HSRD, and SPD in match-play WCS, and contextual variables such as match half, match location and match outcome have a significant impact on the WCS of professional soccer players.