Relative Match Intensities at High Altitude in Highly-Trained Young Soccer Players (ISA3600)

Martin Buchheit, Kristal Hammond, Pitre Bourdon, Ben Simpson, Laura Garvican-Lewis, Walter Schmidt, Christopher Gore, Robert Aughey

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    To compare relative match intensities of sea-level versus high-altitude native soccer players during a 2-week camp at 3600 m, data from 7 sea-level (Australian U17 National team, AUS) and 6 high-altitude (a Bolivian U18 team, BOL) native soccer players were analysed. Two matches were played at sea-level and three at 3600 m on Days 1, 6 and 13. The Yo-Yo Intermittent recovery test (vYo-YoIR1) was performed at sea-level, and on Days 3 and 10. Match activity profiles were measured via 10-Hz GPS. Distance covered >14.4 km.h−1 (D>14.4 km•h−1) and >80% of vYo-YoIR1 (D>80%vYo-YoIR1) were examined. Upon arrival at altitude, there was a greater decrement in vYo-YoIR1 (Cohen’s d +1.0, 90%CL ± 0.8) and D>14.4 km•h−1 (+0.5 ± 0.8) in AUS. D>14.4 km.h−1was similarly reduced relative to vYo-YoIR1 in both groups, so that D>80%vYo-YoIR1 remained similarly unchanged (-0.1 ± 0.8). Throughout the altitude sojourn, vYo-YoIR1 and D>14.4 km•h−1 increased in parallel in AUS, so that D>80%vYo-YoIR1 remained stable in AUS (+6.0%/match, 90%CL ± 6.7); conversely D>80%vYo-YoIR1 decreased largely in BOL (-12.2%/match ± 6.2). In sea-level natives competing at high-altitude, changes in match running performance likely follow those in high-intensity running performance. Bolivian data confirm that increases in ‘fitness’ do not necessarily translate into greater match running performance, but rather in reduced relative exercise intensity.

    Original languageEnglish
    Pages (from-to)98-102
    Number of pages5
    JournalJournal of Sports Science and Medicine
    Volume14
    Issue number1
    Publication statusPublished - 2014

    Keywords

    • Association football
    • Hypoxia
    • Match running performance

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