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Area of Science:

  • Sports Science
  • Football (Soccer) Performance Analysis
  • Athlete Load Management

Background:

  • National team (NT) duty presents unique challenges for international footballers due to varied pre-camp exposures.
  • Understanding factors influencing training load (TL) during NT camps is crucial for optimizing player preparation and performance.

Purpose of the Study:

  • To investigate the relationship between pre-camp factors and subsequent training load in international footballers during NT duties.
  • To analyze the influence of match exposure, travel demands, perceptual wellness, and musculoskeletal screening on training load.

Main Methods:

  • Collected data on match exposure (minutes, days since last match), travel demands (duration, time zones), and perceptual wellness (fatigue, soreness, sleep, stress).
  • Conducted musculoskeletal screening (knee to wall, hip rotation) on day 1 of the NT camp.
  • Measured relative training load (total distance, high-speed running, accelerations/decelerations) over the first 3 days using linear mixed models.

Main Results:

  • Training load metrics, including total distance and high-speed running, peaked on day 3 of the camp.
  • Small relationships were observed between decreased running performance and increased fatigue or soreness.
  • Musculoskeletal measures and prior match exposure showed minimal association with training load metrics.

Conclusions:

  • Pre-camp factors like fatigue, soreness, musculoskeletal status, and prior match exposure have a negligible impact on training load during NT camps.
  • The progression of training load throughout the camp, influenced by deliberate periodization, is the primary determinant of training load prescription.