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Effect of different sprint training regimes on the oxygen delivery-extraction in elite sprinters

机译:不同的短跑训练方案对优秀短跑运动员的氧气输送-抽取的影响

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摘要

Aim. The effects of sprint training regimes of varying distance schedules on the oxygen delivery-extraction relationship were investigated in 15 young (22±1 years) healthy males national-level sprinters. Method. During one session subjects performed four sprints, in a schedule of increasing distance order (100,200,300 and 400 m), and during the other session, in a schedule of decreasing distance order (400,300,200, and 100 m). All sprint bouts were performed on a treadmill at a speed of 22 km/rr1, which corresponds to 85% of subjects' maximal speeds. The order of the running sequences during sessions was balanced over subjects. Results. During both sprint schedules, all variables except for oxygen extraction in the incremented training regime, increased significantly from rest to exercise. Training regimes were not different with regard to cardiac output and absolute oxygen uptake. However, the decreasing compared to the increasing scheme was characterized by significantly (P<0.05) higher mean values of heart rate (194.5±4.1 185.2±5.7 beats/min~(-1), respectively), oxygen extraction (54.3±3.8 and 47.1+3.4 mL/L~(-1), respectively) and lactate (10.6±0.5 and 9.2±0.7 mmol/L1, respectively), while stroke volume was significantly (P<0.05) lower (100.4±4.5 and 109.7±4.4 mL, respectively). Conclusion. The present study indicates that in sprinters performing a similar distance at the same speed, but under different training regimes interplay exists between oxygen delivery and extraction, suggesting a link between the type of training scheme and physiological cardiovascular and skeletal muscle metabolic adaptations. This may explain the absence of differences between the conditions in absolute oxygen uptake and peak power output.
机译:目标。在15名年轻的(22±1岁)健康男性国家级短跑运动员中,研究了不同距离计划的短跑训练方案对氧气输送-抽取关系的影响。方法。在一个会话中,对象按照距离增加的顺序(100,200,300和400 m)执行了四个冲刺,而在另一会话中,对象按照距离减小的顺序(400,300,200和100 m)执行了四个冲刺。所有的短跑比赛都在跑步机上以22 km / rr1的速度进行,这相当于受试者最大速度的85%。会议期间跑步顺序的顺序在受试者之间保持平衡。结果。在两个冲刺计划中,在增加的训练方式中,除抽氧外的所有变量从休息到运动都显着增加。训练方案在心输出量和绝对摄氧量方面没有差异。然而,与增加方案相比,减少的特征在于心率(分别为194.5±4.1 185.2±5.7次/ min〜(-1)的心率)平均值(P <0.05)较高,氧提取(54.3±3.8和分别为47.1 + 3.4 mL / L〜(-1))和乳酸(分别为10.6±0.5和9.2±0.7 mmol / L1),而每搏量显着降低(P <0.05)(100.4±4.5和109.7±4.4)毫升)。结论。本研究表明,短跑运动员以相同的速度执行相似的距离,但是在不同的训练方案下,氧气的输送和提取之间存在相互作用,这表明训练方案的类型与生理性心血管和骨骼肌代谢适应之间存在联系。这可以解释绝对摄氧量和峰值功率输出之间不存在差异的原因。

著录项

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  • 作者单位

    Sports Medicine and Rehabilitation Division Tinman College, Wingate, Israel,Sports Medicine and Rehabilitation Division, Zinman College at Wingate, 42902, Israel;

    rnSports Medicine and Rehabilitation Division Tinman College, Wingate, Israel;

    Cardiology, Lady Davis Carmel Medical Center, Haifa, Israel;

    rnSports Medicine and Rehabilitation Division Tinman College, Wingate, Israel;

    Sports Medicine and Rehabilitation Division Tinman College, Wingate, Israel;

    Sports Medicine and Rehabilitation Division Tinman College, Wingate, Israel;

    Sports Medicine and Rehabilitation Division Tinman College, Wingate, Israel;

    Sports Medicine and Rehabilitation Division Tinman College, Wingate, Israel;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    resistance training; cardiac output; heart rate; oxygen uptake;

    机译:抵抗训练;心输出量心率;摄氧量;
  • 入库时间 2022-08-17 23:08:19

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