Elite Gaelic Football Players Research Articles

Predictive analysis of ratings of perceived exertion in elite Gaelic football.

This study aimed to compare the predictive accuracy of absolute and relative external load indices (ELI) across three machine learning models, and predict the rating of perceived exertion (RPE) of elite Gaelic football players using ELI, personal characteristics, wellness scores, and training workloads. ELI and related variables were collected from 49 elite Gaelic football players over three competitive seasons resulting in 1617 observations. ELI included total distance, high speed running distance (≥ 4.72 m · s-1), and number of accelerations and decelerations (n ± 3 m · s-2), expressed in both absolute and relative terms. Variables related to personal characteristics, wellness scores, and training workloads were also included. Data were analysed using decision tree, random forest (RF), and bootstrap aggregation (BS) models. The RF model had the highest predictive accuracy using absolute and relative ELI only, at 54.3% and 48.3%, respectively. Total and relative distance were the strongest predictors of RPE in the RF model, accounting for 38.8% and 27.9% of the normalised importance. The BS model had the highest accuracy at 67.0% and 65.2% for absolute and relative ELI when performed in conjunction with the related variables, respectively. The current models demonstrate potential to predict RPE and subsequently optimise training load in Gaelic football.

Variability and accuracy of body fat estimates using skinfolds and DXA in elite Gaelic football players: a validation study and development of novel prediction equations

Variability and accuracy of body fat estimates using skinfolds and DXA in elite Gaelic football players: a validation study and development of novel prediction equations

Anthropometric and performance profile of elite Gaelic football players comparing position and role

There is currently no information available on the variation in anthropometric and performance characteristics of starters and non-starters in elite Gaelic football. The aim of the current study was to determine if variations exist for elite male Gaelic football players with respect to position and playing role (starter or non-starter). One-hundred-and-sixty-two footballers from six elite teams underwent anthropometric and performance assessments. Players were categorised into six positional groups (goalkeeper, full back, half back, midfield, half forward and full forward) and two playing role groups (starter and non-starter). A significant position × role interaction was observed for Yo-YoIRT1 distance (p = 0.031, pη2 = 0.078), with starters covering a greater distance in all positions when compared to non-starters (all p < 0.05), except for half backs. Goalkeepers covered a significantly lower Yo-YoIRT1 distance compared to all other positions (p ≤ 0.001, pη2 = 0.35), while half backs completed a significantly greater distance compared to full backs (p = 0.014, pη2 = 0.35) and full forwards (p ≤ 0.001, pη2 = 0.35). Starters had a significantly greater CMJ height (p ≤ 0.001, pη2 = 0.082) and CMJ PP (p = 0.001, pη2 = 0.08) compared to non-starters. This research is the first of its kind within Gaelic football to provide anthropometric and performance values with respect to playing role. The data obtained may aid coaches to individualize training regimes to enhance role-specific preparation for competitive match-play.

Evaluation of nutrition knowledge in elite and sub-elite Gaelic football players

ABSTRACT Nutrition knowledge is a key factor for consideration when evaluating the dietary intake of athletes. Positive associations have been established between higher nutrition knowledge and improved quality of dietary intake. Given the negative impact poor nutrition can have on performance and training adaptation, further investigation into athletes’ nutrition knowledge is warranted. Inadequacies in Gaelic football players dietary intake have been observed however, no assessment of nutrition knowledge has been reported. This study examined players knowledge and compared results by playing level, education level, and history of nutrition education. An online survey was disseminated to a sample of male Gaelic football players (n = 152, mean age = 24.5 ± 5.9). This included 68 club (sub-elite) and 84 inter-county players (elite). Total score was 44.3 ± 12.7%, classified as “poor” and lower than previous findings from similar sports. There were no differences between playing level, however when grouped by education level those with master’s degree scored higher by 9.9% in comparison to leaving certificate (upper secondary) (P= 0.009, d = .805). Those with previous nutrition education also demonstrated higher scores by 12.5% (P<.001, d = 1.096). The evidence presented highlights that Gaelic football players may benefit from evidence-based nutrition education interventions.

Quantifying the Training and Match-Play External and Internal Load of Elite Gaelic Football Players

The current investigation quantified the training and match-play load of elite Gaelic football players across a two-season period using global positioning system technology (GPS), rating of perceived exertion (RPE) and sessional rating of perceived exertion (sRPE). Total weekly workload variables were collected across GPS, RPE, and sRPE across thirty-six elite Gaelic footballers (mean ± SD, age: 26 ± 5 years; height: 177 ± 8 cm; mass: 81 ± 7 kg) from one elite squad during a two-season observational period. External training load variables included: Total distance (m), High speed running (m; ≥ 17.1 km·h−1), Sprint distance (m; 22 km·h−1), Accelerations (n), Average metabolic power (W·kg−1), High-power distance (m; ≥ 25 W·kg−1). Internal load variables included: sRPE and RPE. Repeated measures ANOVA were used to understand the differences in loading patterns across phases, position, and week types when significant main effects were observed a Tukey’s post hoc test was applied and standardized effect sizes were calculated to understand the practical meaning of these differences. When total weekly loading across phases was considered total load was significantly greater in club 1 and provincial 1 with these phases showing the highest loading for players when compared to all other phases (p ≤ 0.001; ES: 2.95–7.22; very large). Furthermore, in-season 1 was greater for total loading when compared to in-season 2 and both championship phases (p ≤ 0.05; ES: 0.47–0.54; small). Total distance in training was greater during preseason 1 when compared to all other phases of the season (p ≤ 0.001; ES: 2.95–7.22; very large). During the in-season period, training based total distance was higher during provincial 1 when compared to other phases with similar trends across all measures (p ≤ 0.005). Finally, a positional profile for load measures was observed, with weekly context (match or non-match) having an impact on the internal and external loading players experienced across phases. The current data provide useful information for practitioners on the training periodization currently present within the elite Gaelic football training process. Specifically, the data provide positional profiles of loading across weekly and segmented phased of an elite Gaelic football season. These data can increase understanding as to the periods of increased and decreased loading across different phases of an elite Gaelic football season, while providing a framework for future analysis concerning Gaelic football periodization.

Is the metabolic power paradigm ecologically valid within elite Gaelic football?

To examine the association between the metabolic power paradigm during training and match-play and objective aerobic fitness measures within elite Gaelic football players. Twenty-five elite Gaelic football players completed objective physiological testing for VO2max, vVO2max, Peak treadmill Velocity (PTV), Running economy (RE) and selected blood lactate concentrations of 2 mmol L−1 (S2) and 4 mmol L−1 (S4). Aerobic testing was performed at the start of the season and at the halfway point of the season. Training and match-play running performances were recorded across the period with global positioning system technology (GPS; 4-Hz; VX Sport, Lower Hutt, New Zealand). Instantaneous raw velocity data were obtained from the GPS and exported to a customised spreadsheet which provided estimations of total distance (m), high-speed running distance (m; 17 km h−1), very-high-speed running distance (m; 22 km h−1), total accelerations (n), acceleration distance (m), peak and mean velocity (km h−1). Furthermore, changes in velocity were analysed which allowed for the assessment of the metabolic power paradigm during these training and match-play events. Players average metabolic power (Pmet; W Kg−1) observed to have a large association with VO2max (r = 0.76–0.88) and velocity at VO2max (r = 0.72–0.91) in training and match situations. Interestingly, peak treadmill velocity showed a moderate association with training and match-play high metabolic power distance (r = 0.56–0.76). Large associations were observed between high power distance during match and training categories and velocity at VO2max (r = 0.76–0.89). Furthermore, high power distance was observed to have a large association with peak treadmill velocity (r = 0.72–0.91) in training and match situations with lactate variables showing a small to moderate association with metabolic power variables. The current investigation is the first to provide evidence towards the ecological validity of the metabolic power paradigm to assess aerobic fitness within elite Gaelic football. Practitioners should consider the association between aerobic fitness and specific metabolic load paradigm variables within their monitoring system as a potential means to understand the impact of training plans within elite Gaelic football players.

Ecological validity of self-reported wellness measures to assess pre-training and pre-competition preparedness within elite Gaelic football

The current investigation aimed to examine the ecological validity of self-reported wellness questionnaires, and specifically ‘Readiness to Train’ (RTT) as an indicator of pre-training and pre-competition preparedness within elite Gaelic football players. Thirty-seven (n = 37) elite male Gaelic football players (age 26 ± 4; height 181 ± 15 cm, weight 86 ± 4 kg) were recruited for the current study which took place during the 2017 competition season. Participants were monitored using global positioning system technology (GPS; 10-Hz; STATSports Viper Pod; STATSports; Newry, UK) and a self-reported questionnaire (Metrifit, Health, and Sport technologies, Ireland) to provide measures of internal load (RPE; sRPE) external load (GPS variables) and wellness questionnaire (Likert scale: 1–5 response) response to training loads. Results showed that irrespective of the model that the percentage RTT prior to training or match-play was not associated with and running performance measures. Activity type (p ≤ 0.0001), muscle soreness (p ≤ 0.0001), sleep quality (p ≤ 0.0001), and sleep duration (p ≤ 0.0001) all effected subsequent running performance during training and match-play. Furthermore, post hoc analysis showed that specific GPS variables and accumulated training load across specific time durations impacted RPE and total internal training load. Our results indicate that RTT is a poor measure of pre-training and competition preparedness, with individual sub-scales of wellness more appropriate to measure preparedness within Gaelic football players. Practitioners should pay close attention to fluctuations in sleep quality, sleep duration, and muscle soreness when planning training loads. Also, accumulated training loads impact players running capacity and perception of RPE highlighting the importance of longitudinally planning within the Gaelic football training process.

Investigation in to the Positional Running Demands of Elite Gaelic Football Players: How Competition Data Can Inform Training Practice.

McGahan, J, Burns, C, Lacey, S, Gabbett, T, and Neill, CO. Investigation in to the positional running demands of elite Gaelic football players: How competition data can inform training practice. J Strength Cond Res 34(7): 2040-2047, 2020-This study investigated the positional running demands of elite Gaelic football players during match play and compared these demands with typical training activities used to prepare players for competition. Global positioning system (GPS) data were obtained from 30 elite Gaelic football players (26.9 ± 3.5 years, 182.8 ± 6.1 cm, 84.6 ± 8.1 kg) across a full season (13 competitive games and 78 training sessions). Only players who completed the full match and respective training sessions were included (n = 107 match files and n = 1,603 training files). Data were collected using 4-Hz GPS units (VX Sport, Lower Hutt, New Zealand). Mean high speed (≥17 km·h; m·min), mean speed (m·min), percentage at high speed (%), and mean sprint efforts (≥17 km·h; no.·min) were recorded. Running variables were analyzed across the 5 outfield positional lines in Gaelic football (full back [FB], half back [HB], midfield [MF], half forward, and full forward [FF]). For mean high-speed running and mean speed, significant relationships (range r = 0.811-0.964 and r = 0.792-0.998, respectively) were found between competition and game-based training for players in the FB, HB, MF, and FF lines (p ≤ 0.05). Analyses of mean sprint efforts and percentage at high speed found positive correlations between competition and training activities across each of the positional lines. Appropriately designed training activities can ensure that the position-specific demands of elite Gaelic football competition are met using a game-based training approach. Collectively, these findings demonstrate the value of and provide support for the use of a game-based training approach as a method of preparing players for the physical demands of competition in elite Gaelic football.

Acceleration Profile of Elite Gaelic Football With Special Reference to Position of Play.

Ryan, M, Malone, S, Donnellan, A, and Collins, K. Acceleration profile of elite Gaelic football with special reference to position of play. J Strength Cond Res 34(6): 1750-1758, 2020-The current study aimed to characterize the positional match-play demands of elite Gaelic football players with special reference to acceleration using predetermined 5-minute periods (epochs). Thirty-five male Gaelic players (mean ± SD, age: 24 ± 6 years; height: 180 ± 7 cm; mass: 81 ± 7 kg) across 5 playing positions (full-back, half-back, midfield, half-forward, and full-forward) were monitored during the investigation. Player movement was recorded during 19 matches using 4-Hz global positioning system technology (VXSport, New Zealand) resulting in 154 player observations. Global positioning system was used to record total distance (m), (high-speed running; m; ≥17 km·h), (very high-speed running distance; m; ≥22 km·h), the number of accelerations (n), duration of accelerations (s), peak acceleration (m), and distance of accelerations (m). Acceleration profiles were position dependent with midfielders found to have a high accumulation of acceleration movements when compared with all other positions (p ≤ 0.05). Declines of -2 to -32% for acceleration distance (m) depending on positional line of play were observed during match-play. Less high-speed running and very high-speed running distance was performed by the full-back line (high-speed running; -39% and very high-speed running; -36%) and full-forward line (-35%; -29%) when compared with half-back, midfielders, and half-forwards (p = 0.01, d = 1.35-1.77). Similar trends were reported for peak acceleration distance (p = 0.01, d = 1.15-1.93). The current investigation provides a greater understanding of temporal differences in acceleration profiles of playing position. We show that half-back, midfield, and half-forwards have the highest acceleration movements; these data can assist coaches in appropriately preparing players for the required acceleration distances required during match-play.

Association between eccentric knee flexor strength and hamstring injury risk in 185 elite Gaelic football players.

Hamstring strains are the most common time-loss injury in elite Gaelic football affecting over 20% of players per season. Thus, there is a need to identify factors contributing to the onset of hamstring injuries in order to inform injury risk management strategies. The current study investigated whether eccentric knee flexor strength and between-limb imbalances were associated with increased risk of sustaining a time-loss hamstring injury in elite Gaelic football players. A total of 185 elite male players (26.9±2.7years, 86.4±6.2kg, 183.4±5.6) were prospectively followed for 12weeks from the day of testing. Injury data were provided by the team medical staff. Twenty-eight players (16%) sustained a time-loss hamstring injury following testing. Players that did not sustain a hamstring injury had greater average between-limb asymmetries (uninjured=9.1%, 95% CI 7.8-10.1; injured=5.1%, 95% CI 3.7-6.7; P=.001). Eccentric knee flexor strength profiles were not associated with increased or decreased risk of sustaining a hamstring injury and did not alter the post-test probability of sustaining a hamstring injury across the investigation period. These findings do not support the use of eccentric knee flexor strength metrics in managing hamstring injury risk in elite male Gaelic football players.

Dietary Intake and Energy Expenditure Assessed during a Pre-Season Period in Elite Gaelic Football Players.

There is currently a lack of research into the energy demands and associated nutritional intakes of elite Gaelic football players during the pre-season period, which is a crucial time of year for physical development. The aim of the current study was to investigate the dietary intake and energy expenditure (EE) of elite Gaelic football players during a typical pre-season week. Over a seven-day period, which included four training days and three rest days, dietary intake (validated self-reported estimated food diary) and EE (Sensewear Pro armband) were recorded in 18 male players from a single elite inter-county Gaelic football team. Average energy intake (EI) (3283 ± 483 kcal) was significantly (p = 0.002) less than average EE (3743 ± 335 kcal), with a mean daily energy deficit of −460 ± 503 kcal. Training days elicited the greatest deficits between intake and expenditure. The mean carbohydrate (CHO) intake was 3.6 ± 0.7 g/kg/day, protein intake was 2.1 ± 0.5 g/kg/day, and fat intake was 1.6 ± 0.2 g/kg/day. These findings indicate that the dietary practices of the sampled players were inadequate to meet EE and CHO recommendations. Training days are of particular concern, with the players not altering energy and CHO intake to encounter increased energy demands. Education on nutritional strategies for elite Gaelic footballers should be considered in relation to training demands to avoid detriments to performance and health.

Positional Anthropometric and Performance Profile of Elite Gaelic Football Players

Shovlin, A, Roe, M, Malone, S, and Collins, K. Positional anthropometric and performance profile of elite gaelic football players. J Strength Cond Res 32(8): 2356-2362, 2018-The aim of the current investigation was to evaluate the variation in the anthropometric and performance characteristics of elite Gaelic football players with respect to position. One hundred forty-eight elite Gaelic footballers underwent anthropometric (height, body mass, sum of 7 skinfolds, and % adipose tissue) and performance (counter movement jump [CMJ] height, CMJ peak power, CMJ relative peak power, squat jump [SJ] height, SJ peak power, SJ relative peak power, 5-, 10-, and 20-m sprint times, and Yo-Yo Intermittent Recovery Test Level 2 [Yo-YoIRT2]) during "the early in-season" phase. Data were split into 5 positional groups (full back, half back, midfield, half forward, and full forward). Higher adipose tissue percentage estimate was observed in full forwards when compared with the half backs (p = 0.001), midfielders (p = 0.035), and half forwards (p = 0.021). Full forwards had significantly greater SJ (p = 0.036) and CMJ (p = 0.013) when compared with the midfielders with no other positional differences observed. No significant variation in sprint times was observed across the positions. When Yo-YoIRT2 was considered, full forwards and full backs completed significantly lower distances compared with the middle 3 positional lines of half backs, midfielders, and half forwards (p = 0.00). The current study is the first to provide normative data for anthropometric and performance values of elite Gaelic football players which in turn can be used by coaches to generate appropriate training regimes to maximize position-specific preparation for competitive match-play.

Time to get our four priorities right: an 8-year prospective investigation of 1326 player-seasons to identify the frequency, nature, and burden of time-loss injuries in elite Gaelic football.

Managing injury risk requires an understanding of how and when athletes sustain certain injuries. Such information guides organisations in establishing evidence-based priorities and expectations for managing injury risk. In order to minimise the impact of sports injuries, attention should be directed towards injuries that occur frequently, induce substantial time-loss, and elevate future risk. Thus, the current study aimed to investigate the rate at which elite Gaelic football players sustain different time-loss injuries during match-play and training activities. Datasets (n = 38) from elite Gaelic football teams (n = 17) were received by the National Gaelic Athletic Association Injury Surveillance Database from 2008 to 2016. A total of 1,614 time-loss injuries were analysed. Each season teams sustained 24.0 (interquartile ranges) (IQR 16.0–32.0) and 15.0 (IQR 10.0–19.0) match-play and training injuries, respectively. When exposure was standardised to 1,000 h, greater rates of injury (12.9, 95% CI [11.7–14.3]) and time-loss days (13.4, 95% CI [12.3–14.9]) were sustained in match-play than in training. Acute injury rates were 3.1-times (95% CI [2.7–3.4]) greater than chronic/overuse injuries. Similarly, non-contact injury rates were 2.8-times (95% CI [2.5–3.2]) greater than contact injuries. A total of 71% of injuries in elite Gaelic football affected five lower limb sites. Four lower limb-related clinical entities accounted for 40% of all time-loss injuries (hamstring, 23%; ankle sprain, 7%; adductor-related, 6%; quadriceps strain, 5%). Thus, most risk management and rehabilitation strategies need to be centred around five lower limb sites—and just four clinical entities. Beyond these, it may be highly unlikely that reductions in injury susceptibility can be attributed to specific team interventions. Thus, compliance with national databases is necessary to monitor injury-related metrics and future endeavours to minimise injury risk.

Eccentric knee flexor strength profiles of 341 elite male academy and senior Gaelic football players: Do body mass and previous hamstring injury impact performance?

ObjectiveReport eccentric knee flexor strength values of elite Gaelic football players from underage to adult level whilst examining the influence of body mass and previous hamstring injury. DesignCross-sectional study. SettingTeam's training facility. ParticipantsElite Gaelic football players (n = 341) from under 14 years to senior age-grades were recruited from twelve teams. Main outcome measuresAbsolute (N) and relative (N·kg−1) eccentric hamstring strength as well as corresponding between-limb imbalances (%) were calculated for all players. ResultsMean maximum force was 329.4N (95% CI 319.5–340.2) per limb. No statistically significant differences were observed in relative force values (4.4 N ·kg−1, 95% CI 4.2–4.5) between age-groups. Body mass had moderate-to-large and weak associations with maximum force in youth (r = 0.597) and adult (r =0 .159) players, respectively. Overall 40% (95 CI 31.4–48.7) presented with a maximum strength between-limb imbalance >10%. Players with a hamstring injury had greater relative maximum force (9.3%, 95% CI 7.0–11.8; p > 0.05) and a 28% (95% CI 10.0–38.0) higher prevalence of between-limb imbalances ≥15% compared to their uninjured counterparts. ConclusionsOverlapping strength profiles across age-groups, combined with greater strength in previously injured players, suggests difficulties for establishing cut-off thresholds associated with hamstring injury risk.

The Precompetition Macronutrient Intake of Elite Gaelic Football Players.

Competition-related dietary intake has not yet been investigated in Gaelic football. The present study examined the precompetition macronutrient intake of elite male Gaelic football players. Forty players from two teams completed a food diary on the 2 days preceding competition (Day 1 and Day 2) and on the match day prior to the match (match day). Carbohydrate intake was significantly greater on Day 2 compared with Day 1, for both absolute (295 ± 98 vs. 318 ± 77g; p = .048; -23.6g, 95% confidence interval [-47.3, 0.2]; Cohen's d = 0.27) and relative intake (3.4 ± 1.1 vs. 3.7 ± 1.0g/kg; p = .027; -0.3g/kg, 95% confidence interval [-0.6, -0.03]; Cohen's d = 0.32). The number of players in accordance with and not in accordance with the guidelines for carbohydrate intake on Day 2 was significantly different to an expected frequency distribution, χ2(1) = 32.400; p ≤ .001; φ = 0.9, with a greater number of players not meeting the guidelines (observed N = 2 vs. 38). The number of players in accordance with and not in accordance with the recommendations for carbohydrate intake on match day was significantly different to an expected frequency distribution, χ2(1) = 8.100; p = .004; φ = 0.45, with a greater number of players meeting the guidelines (observed N = 29 vs. 11). The major finding from the current investigation was that a significantly greater number of players did not meet carbohydrate intake guidelines on the day before competition. Individualized nutritional interventions are required in order to modify the current prematch dietary intake.

The relationship between technical performance indicators and running performance in elite Gaelic football

The aim of the current study was to assess whether technical performance relates to positional running demands of elite Gaelic football players. Over a period of three years (2014–2016), four elite Gaelic football teams were monitored using GPS technologies. Four hundred and thirty-two individual player samples were collected from 52 competitive matches. Video analysis software was used to code technical performance indicators in all games. Pearson’s correlations were performed between all technical variables and total distance (m) and high-speed distance (≥17 km h−1). Total ball in play time had small to medium effects (r = .233 to .390, p ≥ 0.190) on increasing the amount of total distance and high-speed distance run. Similarly, the percentage of short kick-outs taken by the opposition team and total opposition possession time had small to medium effects (r = .146–.410, p ≥ 0.202) in increasing the amount of total distance and high-speed distance run. The number of fouls made in the middle third had the largest negative effect (r = −.89 to −.325, p ≥ 0.439) on running demands. The results of this study give coaches information on how kick-out strategies, passing strategies and defensive strategies impact on running performance.

Monitoring player fitness, fatigue status and running performance during an in-season training camp in elite Gaelic football

ABSTRACTObjectives: To examine selected perceptual and physiological measures to monitor fitness, fatigue and running performance during an in-season training camp in elite Gaelic football. Methods: Twenty-two elite Gaelic football players were monitored for training load, perceived ratings of wellness, heart rate variability (HRV; LnSD1), heart rate recovery (HRR), exercise heart rate (HRex), lower limb muscular power (CMJ) and global positioning system (GPS) variables. The Yo-Yo intermittent recovery test level 1 (Yo-YoIR1) was assessed pre and post the training camp. With specific small-sided games (SSG) used as a measure of running performance. Results: During the camp, HRex decreased (−12.2%), HRR increased (+10.3%), CMJ decreased (−8.1%) and pretraining LnSD1 (+14.1%) increased during the camp period. Yo-YoIR1 performance (+19.7%), total distance (TD) (+9.4%), high-speed distance (HSD) (+12.1%) and sprint distance (SPD) (+5.8%) within SSG improved as the camp progressed. Δ HRex and Δ HRR were correlated with Δ Yo-YoIR1 (r = 0.64; – 0.55), ΔHSD (r = 0.44; −0.58) and Δ SPD (r = 0.58; −0.52).There were large correlations between Δ wellness and Δ Yo-YoIR1 (r = 0.71), Δ TD (r = 0.68) and Δ SPD (r = 0.68). Conclusions: Daily variations in training load measures across the camp period were shown to systematically impact player’s physiological, performance and wellness measures.

Duration specific Running performance in Elite Gaelic Football.

The aim of the current investigation was to determine the position and duration specific running performance of elite Gaelic football players through the use of a moving average method. Global positioning system data (4-Hz, VX Sport, New-Zealand) were collected from thirty-five (n = 35) elite Gaelic football players across a two season period. A total of 32 competitive matches were analysed with 300 full match play data samples obtained for final analysis. Players were categorised based on positional groups; full-back, half-back, midfield, half- forward and full-forward. The velocity-time curve was analysed for each position using a rolling average method, where maximal values were calculated for ten different time durations (1-10 min) using total distance (m·min), high-speed (m·min) and sprint distance (m·min) across each match. There were large differences between the 1 and 2 min rolling averages and all other rolling average durations. Smaller differences were observed for rolling averages of a greater duration. Midfielders covered significantly more relative total, high speed and sprint distance than other positions across all time periods (p < 0.05; ES: 0.84-1.33), with half-backs (p < 0.05; ES: 0.74 - 1.22) and half-forwards (p < 0.05; ES: 0.99-1.45) covering more relative distance than full-backs and full-forwards. The results of the current investigation suggest that running performance within Gaelic football fluctuates across match-play. These data provide further knowledge of the running requirements of Gaelic football competition and this information can be used to aide coaches and practitioners in adequately preparing athletes for the most demanding periods of play.

Protection Against Spikes in Workload With Aerobic Fitness and Playing Experience: The Role of the Acute:Chronic Workload Ratio on Injury Risk in Elite Gaelic Football.

To examine the association between combined session rating of perceived exertion (RPE) workload measures and injury risk in elite Gaelic footballers. Thirty-seven elite Gaelic footballers (mean ± SD age 24.2 ± 2.9 y) from 1 elite squad were involved in a single-season study. Weekly workload (session RPE multiplied by duration) and all time-loss injuries (including subsequent-wk injuries) were recorded during the period. Rolling weekly sums and wk-to-wk changes in workload were measured, enabling the calculation of the acute:chronic workload ratio by dividing acute workload (ie, 1-weekly workload) by chronic workload (ie, rolling-average 4-weekly workload). Workload measures were then modeled against data for all injuries sustained using a logistic-regression model. Odds ratios (ORs) were reported against a reference group. High 1-weekly workloads (≥2770 arbitrary units [AU], OR = 1.63-6.75) were associated with significantly higher risk of injury than in a low-training-load reference group (<1250 AU). When exposed to spikes in workload (acute:chronic workload ratio >1.5), players with 1 y experience had a higher risk of injury (OR = 2.22) and players with 2-3 (OR = 0.20) and 4-6 y (OR = 0.24) of experience had a lower risk of injury. Players with poorer aerobic fitness (estimated from a 1-km time trial) had a higher injury risk than those with higher aerobic fitness (OR = 1.50-2.50). An acute:chronic workload ratio of (≥2.0) demonstrated the greatest risk of injury. These findings highlight an increased risk of injury for elite Gaelic football players with high (>2.0) acute:chronic workload ratios and high weekly workloads. A high aerobic capacity and playing experience appears to offer injury protection against rapid changes in workload and high acute:chronic workload ratios. Moderate workloads, coupled with moderate to high changes in the acute:chronic workload ratio, appear to be protective for Gaelic football players.

Pre-season adductor squeeze test and HAGOS function sport and recreation subscale scores predict groin injury in Gaelic football players

ObjectiveTo determine if pre-season adductor squeeze test and HAGOS function, sport and recreation subscale scores can identify Gaelic football players at risk of developing groin injury. DesignProspective study. SettingSenior inter-county Gaelic football team. ParticipantsFifty-five male elite Gaelic football players (age = 24.0 ± 2.8 years, body mass = 84.48 ± 7.67 kg, height = 1.85 ± 0.06 m, BMI = 24.70 ± 1.77 kg/m2) from a single senior inter-county Gaelic football team. Main outcome measuresOccurrence of groin injury during the season. ResultsTen time-loss groin injuries were registered representing 13% of all injuries. The odds ratio for sustaining a groin injury if pre-season adductor squeeze test score was below 225 mmHg, was 7.78. The odds ratio for sustaining a groin injury if pre-season HAGOS function, sport and recreation subscale score was < 87.5 was 8.94. Furthermore, for each additional point on the numerical rating scale pain rating during performance of the adductor squeeze test, the odds of groin injury increased by 2.16. ConclusionThis study provides preliminary evidence that pre-season adductor squeeze test and HAGOS function, sport and recreation subscale scores can be used to identify Gaelic football players at risk of developing groin injury.