Video-based training is a commonly used method to develop decision-making in athletes and officials. This method typically uses match broadcast footage, yet technological advancements have made 360° Virtual Reality (360°VR) a possible effective tool to investigate. This study aimed to investigate the effectiveness of both 360°VR and match broadcast footage on improving decision-making. Amateur Australian football umpires (N = 32) participated in a randomised control trial. Participants completed a 5-week training intervention in either a 360°VR, match broadcast or control group. Decision-making was assessed at pre-training, 1-week post-training and 4-week retention points using reliable and valid 360°VR and match broadcast decision-making tests. Participants completed a short questionnaire detailing their perceptions of psychological fidelity, enjoyment, relevance, concentration and effort for each video mode. The 360°VR performed significantly better (p < 0.05) than the control group in the 360°VR retention test. No groups statistically improved over the intervention. Remaining pairwise comparisons for this test and the match broadcast test were not significantly different. 360°VR was rated significantly higher (p < 0.05) than match broadcast footage for psychological fidelity, enjoyment and relevance. 360°VR appears to be a beneficial training tool compared to a control, with stronger engagement from the participants than previously used match broadcast footage.
This study examined the physical and decision-making requirements of elite Australian football (AF) umpires during match play. Twenty-nine field umpires were assessed across 20 AF League matches. Physical demands were monitored using global positioning system devices to record the total distance covered and high-speed running (HSR; >14.4 km·h) demands across each quarter. Decision-making performance was assessed through video by 3 elite umpire coaches who reviewed free-kick accuracy during each match. These data were further analyzed according to the position (mid-zone or end-zone) of the umpire when each decision was made. The average distance covered was 10,563 ± 608 m, of which 1,952 ± 494 m was HSR. Significant reductions in distance covered were observed during the third (p = 0.006) and fourth (p = 0.001) quarters, compared with the first. An average of 44 ± 8 free kicks awarded per match with a decision accuracy of 84 ± 6%; however, there were no significant differences (p > 0.05) in these measures across a match. Significantly (p ≤ 0.05) higher physical (HSR; relative distance) and decision-making requirements were observed within the mid-zone. The current data quantify the physical and decision-making demands of AF umpiring and demonstrated that despite a high physical workload, free-kick accuracy is maintained across a match. This suggests that decision making may not be directly compromised by the intermittent running demands of AF umpires. Positional rotations between the mid-zone and end-zone position allow for the demands to be shared among all field umpires during a match.
Existing methods for developing decision-making skill for Australian football umpires separate the physical and perceptual aspects of their performance. This study aimed to determine the efficacy of incorporating video-based decision-making training during high-intensity interval training sessions, specific for Australian football umpires. 20 amateur Australian football umpires volunteered to participate in a randomised control trial. Participants completed an 8-week training intervention in a conditioning only (CON; n=7), combined video-based training and conditioning (COM; n=7), or separated conditioning and video-based training (SEP; n=6) group. Preliminary and post-testing involved a Yo-Yo Intermittent Recovery Test (Yo-YoIR1), and 10x300m run test with an Australian football specific video-based decision-making task. Overall, changes in decision-making accuracy following the intervention were unclear between groups. SEP was possibly beneficial compared to COM in Yo-YoIR1 performance, whereas CON was likely beneficial compared to COM in 10x300m sprint performance. There was no additional benefit to completing video-based training, whether combined with, or separate to physical training, suggesting that this was not an optimal training method. For video-based training to be an effective decision-making tool, detailed feedback should be incorporated into training. It is recommended that longer conditioning and video-based training interventions be implemented to determine training effectiveness.
1 August 2014 in International Journal of Performance Analysis in Sport
Team sport officials are charged with the responsibility to enforce the laws of the game and their performance is based upon the quality of their decisions during a match. The current investigation examined the effects of positioning and retrospective physical demands had on the decision-making accuracy of Australian football officials. Match decision-making statistics and time motion data from 20 elite Australian football matches and the factors related to improved decision-making during match play were examined. Most decisions were made from a distance between 11-15 m, however distance from play had no significant effect on accuracy. There was no significant effect of movement velocity at the time of a decision on accuracy. There was a significant (P<0.05) difference between correct and incorrect decisions in the running speed across the 5 s prior to the decision being made. These findings determine that there is no effect of distance from play or instantaneous velocity on decision-making accuracy during match play. However, higher relative running speeds prior to a decision increases the likelihood of a decisional error. Superior anticipatory skill may reduce the running demands immediately prior to a decision, and therefore possibly improve the decision-making accuracy of umpires.