Times to exhaustion at 100% of velocity at [(V)\dot]\textO\text2 \dot V{\text{O}}_{\text{2}} max and modelling of the time-limit / velocity relationship in elite long-distance runners期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Times to exhaustion at 100% of velocity at [(V)\dot]\textO_\text2 \dot V{\text{O}}_{\text{2}} _max and modelling of the time-limit / velocity relationship in elite long-distance runners

Authors:	Veronique Billat Jean C Renoux Jacques Pinoteau Bernard Petit and Jean P Koralsztein

Abstract:	The aim of this study was to measure running times to exhaustion (Tlim) on a treadmill at 100% of the minimum velocity which elicits $\dot V{\text{O}}_{\text{2}}$ _max $\dot V{\text{O}}_{\text{2}}$ _max in 38 elite male long - distance runners $\dot V{\text{O}}_{\text{2}}$ _max = 71.4 ± 5.5 ml.kg^–1.min^–1 and $\dot V{\text{O}}_{\text{2}}$ _max = 21.8 ± 1.2 km.h^–1). The lactate threshold (LT) was defined as a starting point of accelerated lactate accumulation around 4 mM and was expressed in $\dot V{\text{O}}_{\text{2}}$ _max. Tlim value was negatively correlated with $\dot V{\text{O}}_{\text{2}}$ _max (r = -0.362, p< 0.05) and $\dot V{\text{O}}_{\text{2}}$ _max (r = –0.347, p< 0.05) but positively with LT (%v $\dot V{\text{O}}_{\text{2}}$ _max) (r = 0.378, p < 0.05). These data demonstrate that running time to exhaustion at $\dot V{\text{O}}_{\text{2}}$ _max in a homogeneous group of elite male long-distance runners was inversely related to $\dot V{\text{O}}_{\text{2}}$ _max and experimentally illustrates the model of Monod and Scherrer regarding the time limit-velocity relationship adapted from local exercise for running by Hughson et al. (1984) .

Keywords:	Exercise time to exhaustion Exercise time to exhaustion lactate threshold modelling
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