The Physical and Physiological Demands of Elite International Female Field Hockey Players During Competitive Match-Play.McGuinness, Aideen; Malone, Shane; Petrakos, George; Collins, KieranJournal of Strength & Conditioning Research: Post Acceptance: July 24, 2017 doi: 10.1519/JSC.0000000000002158 Original Research: PDF Only Abstract The aim of the current investigation was to quantify the physical and physiological demands of elite international female field hockey match-play across halves of play. Thirty-eight participants (24 +/- 5 years; 173 +/- 5 cm; 72 +/- 5 kg) took part in nineteen competitive matches during the 2014 - 2015 season. Participants were monitored with GPS technology and heart rate monitors. Players were categorized based on three different playing positions. Activity was categorized into total (m), high-speed running distance (m; >16 km[middle dot]h-1) and relative distance (m[middle dot]min-1) due to the use of rolling substitutions. Heart rate was classified based on the percentage of players individual HRpeak determined via a Yo-Yo intermittent recovery level 1 test. Players spent on average 44 +/- 7 min in match-play. The total distance covered was 5558 +/- 527 m (125 +/- 23 m[middle dot]min-1) with 589 +/- 160 m (13 +/- 4 m[middle dot]min-1) completed at high-speed. Defenders covered a greater total distance compared to other positions of play (p <= 0.001). Midfield players covered a greater distance at high-speed (p <= 0.001) with the forwards having a higher relative distance (p <= 0.001). The HRpeak of the players was 199 +/- 1 b.min-1 with a mean exercise intensity of 86 +/- 7.8 % of HRpeak. The time spent >85% HRpeak decreased significantly across the halves (p = 0.04, [eta]2 = 0.09, Small). Defenders were found to spend more time >85 % HRpeak when compared to forwards (p <= 0.001). The current investigation provides normative data that coaches should consider when constructing training regimen. Copyright (C) 2017 by the National Strength & Conditioning Association.