Influence of buffering capacity on performance in continuous or intermittent endurance exercise

缓冲能力对连续或间歇耐力运动表现的影响

基本信息

批准号：
12480002
负责人：
TAKAMATSU Kaoru
金额：
$ 8.51万
依托单位：
University of Tsukuba
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2001
项目状态：
已结题

项目摘要

If an individual does not possess a high capacity to buffer lactic acid and hydrogen lons accumulated during short-term (high intensity) exercise or relatively longer (medium intensity) continuous or intermittent exercise, a high level of work can not be achieved. Therefore, in this study we investigated the relationship between endurance performance during continuous or intermittent exercise and bicarbonate or non-bicarbonate buffering capacity. To do this we evaluated, 1) the reliability of excess- C0_2 as an indicator of bicarbonate buffering capacity (Experiment 1), 2) the -relationship between various types of endurance exercise performance and excess CO_2 as well as- carnosine concentration, which is an indicator of non-bicarbonate buffering capacity (Experiment 2), and 3) the effect of various types of training on bicarbonate or non-bicarbonate buffering capacity (Experiment 3).The results of Experiment 1 showed that excess CO_2 measured until the point of maximal oxygen uptake … More during incremental exercise (CO_2 excess), and also excess CO_2 measured as the difference in the amount of expired CO_2 and O_2 intake(CO_2-O_2dif) during and after continuous or intermittent exercise are accurate and reliable indicators of bicarbonate buffering capacity. The results of Experiment 2 showed that the bicarbonate buffering capacity indicators (CO_2 excess and CO_2-CO_2dif) , and also the non-bicarbonate buffering capacity indicator (carnosine concentration) are influencing factors on performance during short-term exercise (high intensity) or also relatively longer (medium intensity) continuous or intermittent exercise. The results of Experiment 3 showed that it is possible that CO_2excess, CO_2-O_2dlf and carnosine concentration may be improved by such methods as resistance training, sprint training, endurance training and hypoxic training.The aboved results showed that as well as improvements in ATP-PC, LA, andO_2 energy system capacity, an improved bicarbonate or non-bicarbonate buffering capacity is also a factor that should not be ignored in regard to improving performance in continuous or intermittent exercise. Less

如果一个人不具备高能力缓冲短期（高强度）运动或相对较长（中等强度）连续或间歇运动中积累的乳酸和氢离子，则无法实现高水平的工作。在本研究中，我们研究了连续或间歇运动期间的耐力表现与碳酸氢盐或非碳酸氢盐缓冲能力之间的关系，为此我们评估了：1) 过量 C0_2 作为碳酸氢盐缓冲能力指标的可靠性。 (实验1)、2)各种类型的耐力运动表现与过量CO_2以及作为非碳酸氢盐缓冲能力指标的肌肽浓度之间的关系(实验2)、3)各种类型的效果碳酸氢盐或非碳酸氢盐缓冲能力的训练（实验 3）。实验 1 的结果表明，在增量运动过程中，测量到最大摄氧量之前测量到的过量 CO_2 ... 更多(CO_2过量)，以及在连续或间歇运动期间和之后测量的呼出CO_2和O_2摄入量的差异(CO_2-O_2dif)测量的过量CO_2是碳酸氢盐缓冲能力的准确且可靠的指标。实验2的结果表明。碳酸氢盐缓冲能力指标（CO_2 过量和 CO_2-CO_2dif）以及非碳酸氢盐缓冲能力指标（肌肽浓度）为短期运动（高强度）或相对较长（中等强度）连续或间歇运动时表现的影响因素实验3的结果表明，这样可以改善CO_2excess、CO_2-O_2dlf和肌肽浓度。上述结果表明，除了ATP-PC、LA和O_2能量系统能力的改善外，改善碳酸氢盐或非碳酸氢盐缓冲能力也是提高连续或间歇运动表现不可忽视的因素。