Research Department, National Institute of Sport, Expertise and Performance, 75012, Paris, France.
Eur J Appl Physiol. 2012 Jul;112(7):2583-93. doi: 10.1007/s00421-011-2235-2. Epub 2011 Nov 12.
To evaluate the physiological demands and effects of different pacing strategies on performance during the new combined event (CE) of the modern pentathlon (consisting of three pistol shooting sessions interspersed by three 1-km running legs). Nine elite pentathletes realised five tests: a free-paced CE during an international competition; an incremental running test to determine [Formula: see text] and its related velocity ([Formula: see text]) and three experimental time-trial CE, where the pacing strategy was manipulated (CE(ref), CE(100%), CE(105%)). CE(ref) reproduced the international competition strategy with a 170-m fast running start within the first 2 km. CE(100%) and CE(105%) imposed a constant strategy over km-1 and km-2 with a velocity of 100 and 105% of the mean speed adopted over the same sections during the international competition, respectively. Km-3 was always self-paced. The subjects ran CE(ref) at 99 ± 4% of [Formula: see text] and reached 100 ± 5, 100 ± 7, 99 ± 8% of [Formula: see text] at the end of kilometres 1, 2 and 3, respectively ([Formula: see text]: 72 ± 6 mL O(2) min(-1) kg(-1)), with a peak blood lactate concentration of 13.6 ± 1.5 mmol L(-1). No significant differences in overall performance were found between the pacing conditions (753 ± 30, 770 ± 39, 768 ± 27 s for CE(ref), CE(100%) and CE(105%), respectively, p = 0.63), but all of the shooting performance parameters were only stable in CE(ref). Completion of CE by elite pentathletes elicits a maximal aerobic contribution coupled with a high glycolytic supply. Manipulating the mean running speed over km-1 and km-2 had strong influence on the overall pacing strategy and induced minor differences in shooting performance, but it did not affect overall performance.
为了评估不同配速策略对现代五项新全能项目（由三个手枪射击阶段穿插三个 1 公里跑步阶段组成）中表现的生理需求和影响。九名精英五项全能运动员完成了五项测试：在国际比赛中进行自由配速的全能项目；递增跑步测试以确定最大摄氧量 ([Formula: see text]) 及其相关速度 ([Formula: see text])；以及三个实验计时全能项目，其中配速策略被操纵（CE(ref)、CE(100%) 和 CE(105%)）。CE(ref) 复制了国际比赛的策略，在前 2 公里内以 170 米的快速起跑。CE(100%) 和 CE(105%) 在公里 1 和公里 2 上施加恒定策略，速度分别为国际比赛中相同路段采用的平均速度的 100% 和 105%。公里 3 始终为自配速。受试者以 99 ± 4%的最大摄氧量 ([Formula: see text]) 完成 CE(ref)，并分别在公里 1、2 和 3 结束时达到 100 ± 5%、100 ± 7%和 99 ± 8%的最大摄氧量 ([Formula: see text]：72 ± 6 mL O(2) min(-1) kg(-1))，血乳酸浓度峰值为 13.6 ± 1.5 mmol L(-1)。在不同配速条件下（CE(ref)、CE(100%) 和 CE(105%) 的总用时分别为 753 ± 30、770 ± 39 和 768 ± 27 秒，p = 0.63），整体表现没有显著差异，但所有射击表现参数仅在 CE(ref) 中稳定。精英五项全能运动员完成 CE 会引发最大有氧贡献，并伴有高糖酵解供应。操纵公里 1 和公里 2 的平均跑步速度对整体配速策略有强烈影响，并导致射击表现的细微差异，但不会影响整体表现。
