Research Output

Blood lactate thresholds and walking/running economy are determinants of backpack-running performance in trained soldiers

  We developed a standardized laboratory treadmill protocol for assessing physiological responses to a simulated backpack load-carriage task in trained soldiers, and assessed the efficacy of blood lactate thresholds (LTs) and economy in predicting future backpack running success over an 8-mile course in field conditions. LTs and corresponding physiological responses were determined in 17 elite British soldiers who completed an incremental treadmill walk/run protocol to exhaustion carrying 20 kg backpack load. Treadmill velocity at the breakpoint (r = −0.85) and Δ 1 mmol l−1 (r = −0.80)
LTs, and relative VO2 at 4 mmol l−1 (r = 0.76) and treadmill walk/run velocities of 6.4 (r = 0.76), 7.4 (r = 0.80), 11.4 (r = 0.66) and 12.4 (r = 0.65) km h−1 were significantly associated with field test completion time. We report for the first time that LTs and backpack walk/run economy are major determinants of backpack load-carriage performance in trained soldiers.

  • Type:

    Article

  • Date:

    04 May 2016

  • Publication Status:

    Published

  • Publisher

    Elsevier

  • DOI:

    10.1016/j.apergo.2016.04.010

  • Cross Ref:

    S0003687016300746

  • ISSN:

    0003-6870

  • Library of Congress:

    RC1200 Sports Medicine

  • Dewey Decimal Classification:

    613 Personal health & safety

  • Funders:

    Carnegie Trust for the Universities of Scotland

Citation

Simpson, R. J., Graham, S. M., Connaboy, C., Clement, R., Pollonini, L., & Florida-James, G. D. (2017). Blood lactate thresholds and walking/running economy are determinants of backpack-running performance in trained soldiers. Applied Ergonomics, 58, 566-572. https://doi.org/10.1016/j.apergo.2016.04.010

Authors

Keywords

Load-carriage; Ventilatory threshold; Special forces;

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