The relative contributions of anaerobic and aerobic energy supply during track 100-, 400- and 800-m performance.
The relative contributions of anaerobic and aerobic energy supply during track 100-, 400- and 800-m performance.
复制标题
在 100、400 和 800 米田径比赛中无氧和有氧能量供应的相对贡献。
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
Clyde Williams
中科院分区：
文献类型：
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作者：
Alan M. Nevill;R. Ramsbottom;M. Nevill;S. Newport;Clyde Williams
目的
本研究旨在确定实验室确定的生理指标，（最大）累积氧亏（AOD）和最大摄氧量（VO（2max））的相对贡献，预测赛道性能。
方法
14名志愿者（男性：n = 10;妇女：n = 4）;平均（+/-标准差[SD]）身高1.76 +/-0.1 m（男性）vs 1.62 +/-0.08 m（女性）;体重：67.9 +/-7.1 kg（男性）vs 50.6 +/-8.2 kg（女性），参加100、400和800 m的田径比赛。在受控实验室条件下分别测量个体测定的（最大）AOD和VO（2max）（68.3 +/-10.2 vs 60.7 +/-16.1;男性vs女性，mL x（2）x Eq x kg（-1））和（68.7 +/-7.3 vs 55.6 +/-4.3;男性vs女性，mL x kg（-1）x min（-1））。
结果
轨道性能可以预测使用两个实验室的措施，AOD和，具有很高的准确度：R2 = 76.9%，84.8%和89.1%，分别为100，400和800米。数据分析证实，100 m跑的主要供能过程是无氧供能过程，反映为AOD。相反，氧化代谢（反映为VO（2max））的能量供应的主要来源，在800米的性能。
结论
结果支持早期的研究，而不是目前的教科书教条，即有氧和无氧过程同样有助于持续约60秒的最大运动。
AIM
The present study set out to identify the relative contribution of the laboratory determined physiological measures, (maximal) accumulated oxygen deficit (AOD) and maximal oxygen uptake (VO(2max)), when predicting track performance.
METHODS
Fourteen volunteers (men: n=10; women: n=4); mean (+/- standard deviation [SD]) height 1.76+/-0.1 (men) vs 1.62+/-0.08 m (women); body mass: 67.9+/-7.1 (men) vs 50.6+/-8.2 kg (women), ran track races at distances of 100, 400 and 800 m. The individually determined (maximal) AOD and VO(2max) were measured under controlled laboratory conditions (68.3+/-10.2 vs 60.7+/-16.1; men vs women, mL x (2) x Eq x kg(-1)) and (68.7+/-7.3 vs 55.6+/-4.3; men vs women, mL x kg(-1) x min(-1)), respectively.
RESULTS
Track performance could be predicted using both laboratory measures, AOD and , with a high degree of accuracy: R2=76.9%, 84.8% and 89.1% for 100, 400 and 800 m, respectively. Data analysis confirmed the dominant energy supply during 100-m sprinting was the anaerobic energy supply processes, reflected as AOD. In contrast, oxidative metabolism (reflected as VO(2max)) was the dominant source of energy supply during 800-m performance.
CONCLUSION
The results support earlier research, rather than present textbook dogma, namely that aerobic and anaerobic processes contribute equally to maximal exercise lasting approximately 60 s.