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Maximal Intensity Periods During International Male Field Hockey.

Paul S R Goods1,2, Brendyn Appleby1,3, Brendan R Scott1,2

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Elite field hockey players experience maximal intensity periods (MIPs) significantly exceeding average match loads. Analyzing these high-intensity bursts is crucial for effective training prescription and athlete monitoring in team sports.

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Area of Science:

  • Sports Science
  • Biomechanics
  • Exercise Physiology

Background:

  • Understanding maximal intensity periods (MIPs) in elite field hockey is vital for optimizing training and performance.
  • Previous research often relies on match averages, potentially underestimating peak physical demands.
  • Elite field hockey involves complex movement patterns, including high-speed running, accelerations, decelerations, and changes of direction.

Purpose of the Study:

  • To examine maximal intensity periods (MIPs) and near-peak intensity for various movement characteristics in international field hockey.
  • To determine if peak demands for different movement characteristics occur simultaneously during matches.
  • To compare MIPs with average match activity to highlight potential underestimations.

Main Methods:

  • Retrospective cohort study analyzing wearable tracking data from 28 Australian elite male field hockey players across 393 player-matches.
  • Maximal intensity periods (MIPs) identified using the rolling-sum method for mean speed, high-speed distance, accelerations, decelerations, and high-speed cuts across eight epochs (5 seconds to 5 minutes).
  • Random effects linear mixed models used to estimate means for movement characteristics, accounting for player and match variability.

Main Results:

  • Mean speed during the 1-minute MIP was approximately 80% higher than the match average (210 vs. 116 m·min⁻¹).
  • High-speed distance, accelerations, and decelerations occurred over 5 times faster during the 1-minute MIP compared to the match average.
  • High-speed cuts occurred approximately 10 times more frequently during the 1-minute MIP.

Conclusions:

  • Average match data substantially underestimate the maximal intensity periods experienced by elite field hockey players.
  • Practitioners should analyze peak match periods, focusing on high-intensity movements, to better inform training monitoring and prescription.
  • Simultaneous occurrence of peak demands for different movement characteristics needs further investigation to understand tactical and physiological implications.