Richard J. Simpson
Blood lactate thresholds and walking/running economy are determinants of backpack-running performance in trained soldiers
Simpson, Richard J.; Graham, Scott M.; Connaboy, Christopher; Clement, Richard; Pollonini, Luca; Florida-James, Geraint D.
Scott Graham S.Graham3@napier.ac.uk
Prof Geraint Florida-James G.Florida-James@napier.ac.uk
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 ? 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.
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
|Journal Article Type||Article|
|Acceptance Date||Apr 19, 2016|
|Online Publication Date||May 4, 2016|
|Deposit Date||May 2, 2016|
|Publicly Available Date||May 5, 2017|
|Peer Reviewed||Peer Reviewed|
|Keywords||Load-carriage; Ventilatory threshold; Special forces;|
Blood lactate thresholds and walking/running economy...
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