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首页> 外文期刊>Journal of human kinetics. >Gross Efficiency and the Relationship with Maximum Oxygen Uptake in Young Elite Cyclists During the Competitive Season
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Gross Efficiency and the Relationship with Maximum Oxygen Uptake in Young Elite Cyclists During the Competitive Season

机译:竞技季节年轻优秀自行车运动员的总效率及其与最大摄氧量的关系

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This study assessed gross efficiency (GE) during a single competitive season and determined the relationship between GE and maximum oxygen uptake (V?Osub2max/sub) in young elite cyclists (n = 15, 20.1 ± 1.4 yrs, 177.5 ± 5.7 cm, 68.3 ± 6.2 kg, 45.2 ± 7.5 mm of six skinfolds) during a competitive season. Participants completed at two occasions (T1 = April; T2 = July), a progressive bike protocol (initial intensity = 100 W, 35 W increments every 3 min) until volitional exhaustion to assess V?Osub2max/sub and submaximal variables. A single capillary blood sample was drawn from the left earlobe immediately after completion of each exercise load to determine lactate thresholds. Cyclists’ GE was calculated as ([work accomplished/energy expended] x 100). No significant differences were obtained in GE at any workload between T1 and T2 or in the mean GE between T1 (19.3%) and T2 (19.4%) testing (p = 0.93). No significant association was found between mean GE and V?Osub2max/sub at either T1 (r = -0.28, p = 0.30), or T2 (r = -0.27, p = 0.32). GE of young elite cyclists might not vary during the most important phase of the training season and GE was not related to V?Osub2max/sub. A lower accumulated volume and intensity of training of these cyclists may account for their lower GE in comparison to older professional cyclists and might not have been enough to foster higher increases of GE in cyclists with lower V?Osub2max/sub.
机译:这项研究评估了单个竞技季节的总效率(GE),并确定了GE与年轻精英骑自行车者(n = 15、20.1±1.4岁,最大摄氧量)之间的最大摄氧量(V?O 2max )之间的关系,在比赛季节中177.5±5.7厘米,68.3±6.2公斤,45.2±7.5毫米的六个皮褶)。参与者完成两次(T1 =四月; T2 =七月),并进行渐进式自行车运动(初始强度= 100 W,每3分钟增加35 W),直到自愿力竭以评估V?O 2max 和次最大变量。完成每次运动负荷后,立即从左耳垂抽取单个毛细血管血样,以确定乳酸阈值。骑车人的GE的计算方式为[[完成工作/能源消耗] x 100)。在T1和T2之间的任何工作负荷下,或在T1(19.3%)和T2(19.4%)测试之间的平均GE上,GE均无显着差异(p = 0.93)。在T1(r = -0.28,p = 0.30)或T2(r = -0.27,p = 0.32)时,平均GE与V?O 2max 之间没有发现显着关联。在训练季节的最重要阶段,年轻的精英自行车运动员的GE可能不会变化,GE与V?O 2max 无关。与年龄较大的专业自行车手相比,这些自行车手的累积训练量和强度较低可能是他们的GE较低的原因,并且可能不足以促使V?O 2max 较低的自行车手提高GE的较高增长率。 。

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