Effect Of Changing Match Format From Halves To Quarters On The Performance Characteristics Of Male University Field Hockey Players

The study examined whether the performance characteristics of male university field hockey players differed when the match format was 2 x 35 min halves compared to 2 x 2 x 17.5 min quarters. Thirty-five male university field hockey players (age 21.2 +/- 3.0 years, height 1.81 +/- 0.07 m, body mass 75.1 +/- 8.9 kg), competing at national level in the UK, were monitored over 52 matches played across the 2018-2019 (2 x 35 min halves) and 2019-2020 (2 x 2 x 17.5 min quarters) seasons using 15 Hz Global Positioning System units and heart rate monitors. Total distance, high-speed running distance (>= 15.5 km center dot h(-1)), accelerations (>= 2 m center dot s(-1)), decelerations (<=-2 m center dot s(-1)), average heart rate and percentage of time spent at >85% of maximum heart rate were recorded during both match formats. Two-level random intercept hierarchal models (Match-level 1, Player-level 2) suggested that the change in format from 2 x 35 min halves (2018-2019 season) to 2 x 2 x 17.5 min quarters (2019-2020 season) resulted in a reduction in total distance and high-speed running distance completed during a match (by 221 m and 120 m, respectively, both p < 0.001). As no significant cross-level interactions were observed (between season and half), the change from 35 min halves to 17.5 min quarters did not attenuate the reduced physical performance evident during the second half of matches (total distance: -235 m less in second half; high-speed running distance: -70 m less in second half; both p < 0.001). Overall, the findings suggest that the change in match format did alter the performance characteristics of male university field hockey players, but the quarter format actually reduced the total distance and high-speed running distance completed during matches, and did not attenuate the reduction in performance seen during the second half of matches.