Energy system contribution to 1500-and 3000-metre track running
Energy system contribution to 1500-and 3000-metre track running
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DOI：
10.1080/02640410400021963
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发表时间：
2005-10-01
影响因子：
3.4
通讯作者：
Goodman, C
中科院分区：
文献类型：
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作者：
Duffield, R;Dawson, B;Goodman, C
本研究的目的是量化有氧和无氧能量系统的贡献，1500米和3000米的轨道运行事件在全面的时间试验单独进行的合成田径跑道。10名3000米（8名男性，2名女性）和14名1500米（10名男性，4名女性）训练的田径运动员自愿参加研究。运动员在实验室进行了分级运动测试和两次超过1500或3000英寸的计时赛。能量系统的贡献计算的措施，种族摄氧量，累积氧赤字（AOD），种族血乳酸浓度，估计磷酸肌酸降解和一些个别肌肉代谢物的数据。相对有氧能量系统的贡献（基于AOD措施）为3000米是86%（男性）和94%（女性），而1500米是77%（男性）和86%（女性）。基于血乳酸浓度的无氧能量消耗估计值，虽然没有显著差异（P > 0.05），但通常低于AOD测量值。总之，本研究的结果符合最近的一些实验室为基础的措施，能源系统的贡献，这些事件。
The aim of the present study was to quantify the contributions of the aerobic and anaerobic energy systems to 1500- and 3000-m track running events during all-out time-trials performed individually on a synthetic athletic track. Ten 3000-m (8 males, 2 females) and fourteen 1500-m (10 males, 4 females) trained track athletes volunteered to participate in the study. The athletes performed a graded exercise test in the laboratory and two time-trials over 1500 or 3000 in. The contributions of the energy systems were calculated by measures of race oxygen uptake, accumulated oxygen deficit (AOD), race blood lactate concentration, estimated phosphocreatine degradation and some individual muscle metabolite data. The relative aerobic energy system contribution (based on AOD measures) for the 3000 in was 86% (male) and 94% (female), while for the 1500 m it was 77% (male) and 86% (female). Estimates of anaerobic energy expenditure based on blood lactate concentrations, while not significantly different (P > 0.05), were generally lower compared with the AOD measures. In conclusion, the results of the present study conform with some recent laboratory-based measures of energy system contributions to these events.