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Percorrer por autor "Connor, Mark"

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  • The relationship between individualised speed thresholds and changes in aerobic fitness in elite professional youth soccer players. A case study
    Publication . KAVANAGH, Ronan; McDAID, Kevin; Rhodes, David; ALEXANDER, Jill; Harper, Damien; Oliveira, Rafael; Oliveira, Rafael; Berran, Kieran; Connor, Mark; ZMIJEWSKI, Piotr; Morgans, Ryland
    Background: This study aimed to examine the dose-response relationship between train ing load and aspects of physical fitness in English Premier League (EPL) U23 soccer players. Mate rials and Methods: Seven male EPL U23 outfield soccer players (age 20.1±1.1 years) participated in this study and performed the Bronco test on five occasions within one season. Individualised run ning thresholds were employed using maximal aerobic speed (MAS), anaerobic speed reserve (ASR) and maximal sprint speed (MSS) values utilising a GPS system. Results: No significant differences in the Bronco performance between the tests (p > 0.05, ES = 0.101) were observed. Distance covered above 30% ASR (r = -0.51) and time spent above 30% ASR (r = -0.54) over a 2-week period displayed a moderate negative linear relationship with Bronco performance. Conclusions: ASR-based training load variables displayed the highest correlations with Bronco results. These findings support prac titioners to individualise high-speed running thresholds.
    2025-02Artigo de investigação Acesso aberto Ver mais
  • The relationship between VO2 max and 1200m shuttle run performance in elite academy football players
    Publication . Kavanagh, Ronan; McDaid, Kevin; Rhodes, David; Connor, Mark; Oliveira, Rafael; Varley, Ian; Morgans, Ryland
    Purpose: To investigate the relationship between VO2 max and performance in the 1200m shuttle run test in elite Premier League academy football players. Methods: Seventeen male professional outfield football players completed a laboratory based incremental treadmill test to establish vVO2 max and a field based 1200m shuttle test to estimate velocity at MAS. During the pre-season period a linear speed phase consisting of twice weekly PS exposures were conducted and each player’s PS reached during this period was established. Body composition was measured using DEXA. Results: Examining the standardized (scaled) coefficients, ASR (7.373) had the largest effect on VO2 max followed by PS (-5.568), MAS (3.604), Body Fat (-0.285) and Lean Mass (-0.185).The results suggest that the model is a significantly better predictor than a model that constantly predicts the mean VO2max value (F = 3.422, p = 0.041). Conclusions: The MAS values obtained from the 1200m shuttle test may be an appropriate assessment to consider when monitoring and individualizing high-intensity performance rather than the generic threshold of 5.5 m/s.
    2023Artigo científico Acesso aberto Ver mais