scholarly journals No Influence of Prematch Subjective Wellness Ratings on External Load During Elite Australian Football Match Play

2020 ◽  
Vol 15 (6) ◽  
pp. 801-807 ◽  
Author(s):  
Phillip M. Bellinger ◽  
Cameron Ferguson ◽  
Tim Newans ◽  
Clare L. Minahan
Keyword(s):  
External Load ◽  
Linear Models ◽  
Contextual Factors ◽  
Football Players ◽  
Mixed Effect ◽  
Match Play ◽  
Running Activity ◽  
Perceived Wellness ◽  
Football Match ◽  
Australian Football

Purpose: To determine whether there is an association between external match load and contextual factors on subjective wellness in the days before and after Australian Rules football match play. Methods: A total of 34 elite male Australian football players completed a subjective wellness questionnaire in the days leading into the match (–3, –2, and –1 d), the day of (match day), and the days after each match (+3, +2, and +1 d). Players subjectively rated each item (mood, energy, stress, leg heaviness, muscle soreness, sleep quality, hours slept, and total wellness [a sum of the total response score]) on a visual analog scale ranging from 1 to 10, with 1 representing the negative end of the continuum. External load during competitive matches was quantified using accelerometer-derived PlayerLoad, and running activity was quantified using global positioning system technology across 2 competitive seasons. The relationships between perceptions of wellness (within-individual z score), external match load, and contextual factors (match result, match location, and between-matches recovery duration) were analyzed using linear mixed models. Results: Mixed-effect linear models revealed trivial effects of match-day wellness z score on subsequent external match load metrics. Match result (win) and PlayerLoad in the anteroposterior vector (au·min−1) were associated with an increased (estimate ± SE: 0.30 ± 0.13 z score) and reduced subjective wellness (−0.15 ± 0.06 z score), respectively. Conclusion: The results of this study suggest that prematch perceived wellness does not relate to external match load in elite Australian football players. The between-matches microcycle length appears to be sufficient to restore perceived wellness to values that do not affect the subsequent external match loads.

scholarly journals The Influence of Contextual Factors on Running Performance in Female Australian Football Match-Play

2019 ◽  
Vol 33 (9) ◽  
pp. 2488-2495 ◽  
Author(s):  
Georgia M. Black ◽  
Tim J. Gabbett ◽  
Geraldine Naughton ◽  
Michael H. Cole ◽  
Rich D. Johnston ◽  
...  
Keyword(s):  
Contextual Factors ◽  
Match Play ◽  
Running Performance ◽  
Football Match ◽  
Australian Football

Influence of Neuromuscular Fatigue on Accelerometer Load in Elite Australian Football Players

2013 ◽  
Vol 8 (4) ◽  
pp. 373-378 ◽  
Author(s):  
Stuart J. Cormack ◽  
Mitchell G. Mooney ◽  
Will Morgan ◽  
Michael R. McGuigan
Keyword(s):  
High Speed ◽  
Neuromuscular Fatigue ◽  
Football Players ◽  
Countermovement Jump ◽  
Baseline Measure ◽  
Running Activity ◽  
Australian Football ◽  
Percent Contribution ◽  
Playing Time ◽  
The Impact

Purpose:To determine the impact of neuromuscular fatigue (NMF) assessed from variables obtained during a countermovement jump on exercise intensity measured with triaxial accelerometers (load per minute [LPM]) and the association between LPM and measures of running activity in elite Australian Football.Methods:Seventeen elite Australian Football players performed the Yo-Yo Intermittent Recovery Test level 2 (Yo-Yo IR2) and provided a baseline measure of NMF (flight time:contraction time [FT:CT]) from a countermovement jump before the season. Weekly samples of FT:CT, coaches’ rating of performance (votes), LPM, and percent contribution of the 3 vectors from the accelerometers in addition to high-speed-running meters per minute at >15 km/h and total distance relative to playing time (m/min) from matches were collected. Samples were divided into fatigued and nonfatigued groups based on reductions in FT:CT. Percent contributions of vectors to LPM were assessed to determine the likelihood of a meaningful difference between fatigued and nonfatigued groups. Pearson correlations were calculated to determine relationships between accelerometer vectors and running variables, votes, and Yo-Yo IR2 score.Results:Fatigue reduced the contribution of the vertical vector by (mean ± 90% CI) –5.8% ± 6.1% (86% likely) and the number of practically important correlations.Conclusions:NMF affects the contribution of individual vectors to total LPM, with a likely tendency toward more running at low speed and less acceleration. Fatigue appears to limit the influence of the aerobic and anaerobic qualities assessed via the Yo-Yo IR2 test on LPM and seems implicated in pacing.

Possession chain factors influence movement demands in elite Australian football match-play

2020 ◽  
Vol 5 (1) ◽  
pp. 72-78
Author(s):  
Andrew Vella ◽  
Anthea C Clarke ◽  
Thomas Kempton ◽  
Samuel Ryan ◽  
Jacob Holden ◽  
...  
Keyword(s):  
Match Play ◽  
Football Match ◽  
Australian Football

scholarly journals The Influence of Physical Qualities on Activity Profiles of Female Australian Football Match Play

2018 ◽  
Vol 13 (4) ◽  
pp. 524-529 ◽  
Author(s):  
Georgia M. Black ◽  
Tim J. Gabbett ◽  
Rich D. Johnston ◽  
Michael H. Cole ◽  
Geraldine Naughton ◽  
...  
Keyword(s):  
Match Play ◽  
Football Match ◽  
Australian Football

scholarly journals Small-sided games do not replicate all external and internal loads of a football match-play during pre-season: A case study

2022 ◽  
pp. 174795412110699
Author(s):  
Guilherme de Sousa Pinheiro ◽  
Roberto Chiari Quintão ◽  
Vitor Bertoli Nascimento ◽  
João Gustavo Claudino ◽  
Adriano Lima Alves ◽  
...  
Keyword(s):  
Average Distance ◽  
Training Session ◽  
Football Players ◽  
Professional Football ◽  
Internal Load ◽  
Match Play ◽  
Average Value ◽  
Total Distance ◽  
Football Match

This study investigated the differences in external and internal load during pre-season training sessions carried out with different SSGs and a friendly match in top-class professional football players. The study was conducted over a full pre-season. Participants were 9 male top-class professional football players (25 ± 5 years; 74 ± 8 kg; 177 ± 8 cm). The following variables were measured: training session duration (min), average heart rate (bpm), total distance (m), distance covered per minute (m/min), the total number of accelerations > 2.5 m/s2, number of accelerations > 2.5 m/s2 per minute, average distance of accelerations (m), the average value of acceleration (m/s2). One-way ANOVA was performed to analyze the variance of all evaluated variables. No differences were found in the average accelerations (m/s2) (0.128) among all the training formats. Moderate differences were found in number of accelerations > 2.5 m/s2 per minute (η2 = 0.396, moderate effect) and average distance of accelerations (η2 = 0.545). Strong differences were found in HR (η2 = 0.788, large effect), total distance (η2 = 0.797, strong effect), distance per minute (η2 = 0.775 strong effect), total number of accelerations > 2.5 m/s2 (η2 = 0.699 strong effect). Significant correlations were found just for the number of accelerations > 2.5 m/s2 and the number of accelerations > 2.5 m/s2 per minute with the 4v4, 8v8 and the FM (r = 0.828–0.890, r2 = 69% – 79%; p < 0.01). External and internal loads differ across different SSGs and a FM during the pre-season training sessions.

scholarly journals Physical fitness and peak running periods during female Australian football match-play

2018 ◽  
Vol 2 (3) ◽  
pp. 246-251 ◽  
Author(s):  
Georgia M. Black ◽  
Tim J. Gabbett ◽  
Rich D. Johnston ◽  
Michael H. Cole ◽  
Geraldine Naughton ◽  
...  
Keyword(s):  
Physical Fitness ◽  
Match Play ◽  
Football Match ◽  
Australian Football

Duration-specific running intensities of Australian Football match-play

2017 ◽  
Vol 20 (7) ◽  
pp. 689-694 ◽  
Author(s):  
Jace A. Delaney ◽  
Heidi R. Thornton ◽  
Darren J. Burgess ◽  
Ben J. Dascombe ◽  
Grant M. Duthie
Keyword(s):  
Match Play ◽  
Football Match ◽  
Australian Football

Identification of Sensitive Measures of Recovery After External Load From Football Match Play

2017 ◽  
Vol 12 (7) ◽  
pp. 969-976 ◽  
Author(s):  
Amber E. Rowell ◽  
Robert J. Aughey ◽  
Will G. Hopkins ◽  
Andrew M. Stewart ◽  
Stuart J. Cormack
Keyword(s):  
Mixed Model ◽  
Linear Mixed Model ◽  
Individual Variability ◽  
High Load ◽  
Football Players ◽  
Jump Height ◽  
Match Play ◽  
Salivary Testosterone ◽  
Football Match ◽  
Change In Mean

Objective measures of recovery from football match play could be useful for assessing athletes’ readiness to train, if sensitive to preceding match load.Purpose:To identify the sensitivity of countermovement-jump (CMJ) performance and concentration of salivary testosterone and cortisol relative to elite football match load.Methods:CMJ performance and salivary hormones were measured in 18 elite football players before (27, 1 h) and after (0.5, 18, 42, 66, 90 h) 3 consecutive matches. Match load was determined via accelerometer-derived PlayerLoad and divided into tertiles. Sensitivity of CMJ performance and hormone concentrations to match load was quantified with t statistics and magnitude-based inferences (change in mean as % ± 90% confidence interval) derived with a linear mixed model.Results:Jump height was reduced in medium and high load at 0.5 h (10% ± 7% and 16% ± 8%) and 18 h (7% ± 4% and 9% ± 5%) postmatch. There was a 12% ± 7% reduction in ratio of flight time to contraction time (FT:CT) in high load at 0.5 h post, with reductions in medium and high load at 18 h. Reductions in FT:CT persisted at later postmatch time points than changes in jump height. Increased cortisol (range 55–165%) and testosterone (range 17–20%) were observed in all match loads at 0.5 h post, with individual variability thereafter.Conclusions:Measures of CMJ performance and hormonal concentrations were sensitive to levels of A League football match load. Although jump height was reduced immediately postmatch, FT:CT provided a more sensitive measure of recovery. Football match play induces an acute hormonal response with substantial individual variability thereafter.

scholarly journals The Effects of Pre-Game Carbohydrate Intake on Running Performance and Substrate Utilisation during Simulated Gaelic Football Match Play

Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1392
Author(s):  
Luke O’Brien ◽  
Kieran Collins ◽  
Richard Webb ◽  
Ian Davies ◽  
Dominic Doran ◽  
...  
Keyword(s):  
High Speed ◽  
Football Players ◽  
Glycerol Concentration ◽  
Half Time ◽  
Match Play ◽  
Running Performance ◽  
Positioning Systems ◽  
Oxidation Rates ◽  
Significant Difference ◽  
Football Match

Background: Previous research has reported that elite Gaelic football players’ carbohydrate (CHO) intakes are sub-optimal, especially, in the lead up to competitive matches. Despite clear decrements in running performance across elite Gaelic football matches, there are no studies that have investigated nutrition interventions on match-related Gaelic football performance. The aim of this study was to determine whether a higher-CHO diet in line with sports nutrition guidelines can improve Gaelic football-related performance compared to lower CHO intakes previously observed in Gaelic footballers. Methods: Twelve Gaelic football players completed a Gaelic football simulation protocol (GFSP) on two occasions after consuming a high-CHO diet (7 g·kg−1) (HCHO) or an energy-matched lower-CHO diet (3.5 g·kg−1) (L-CHO) for 48 h. Movement demands and heart rate were measured using portable global positioning systems devices. Countermovement jump height (CMJ) and repeated-sprint ability (RSA) were measured throughout each trial. Expired respiratory gases were collected throughout the trial using a portable gas analyser. Blood samples were taken at rest, half-time, and post-simulation. Results: There was no significant difference in total distance (p = 0.811; η2 = 0.005) or high-speed running distance (HSRD) covered between both trials. However, in the second half of the HCHO trial, HSRD was significantly greater compared to the second half of the LCHO trial (p = 0.015). Sprint distance covered during GFSP was significantly greater in HCHO (8.1 ± 3.5 m·min−1) compared with LCHO (6.4 ± 3.2 m·min−1) (p = 0.011; η2 = 0.445). RSA performance (p < 0.0001; η2 = 0.735) and lower body power (CMJ) (p < 0.0001; η2 = 0.683) were significantly greater during the HCHO trial compared to LCHO. Overall CHO oxidation rates were significantly greater under HCHO conditions compared to LCHO (3.3 ± 0.5 vs. 2.7 ± 0.6 g·min−1) (p < 0.001; η2 = 0.798). Blood lactate concentrations were significantly higher during HCHO trial versus LCHO (p = 0.026; η2 = 0.375). There were no significant differences in plasma glucose, non-esterified fatty acids (NEFAs), and glycerol concentration between trials. In both trials, all blood metabolites were significantly elevated at half-time and post-trial compared to pre-trial. Conclusion: These findings indicate that a higher-CHO diet can reduce declines in physical performance during simulated Gaelic football match play.

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