论文部分内容阅读
在实验室中采用非力竭性试验精确预测耐力成绩显然是具有实用价值的。近年来的研究发现,血液乳酸开始积聚时(血乳酸阈值或称LT)的稳定状态跑速与长距离跑(8—42公里)的成绩高度相关(r=0.92—0.99),用其来预测成绩时标准误小于0.7—2.2%。从生理的角度而言,LT 跑速是LT 时耗氧量和亚极限负荷经济性的函数。Farrell 及其同事证明,在长跑运动中,成绩的好坏与LT 时耗氧量的关系要比与亚极限负荷经济性的关系更为密切。对这些运动成绩参差不齐的长跑选手的研究结果提示,长跑成绩
It is clearly of practical value to use non-exhaustive tests to accurately predict endurance performance in the laboratory. Recent studies have found that steady-state running speed when blood lactate begins to accumulate (blood lactate threshold or LT) is highly correlated with long-distance running (8-42 km) (r = 0.92-0.99) and used to predict Standard error when the score is less than 0.7-2.2%. From a physiological point of view, LT running speed is a function of oxygen consumption and sub-extreme load economy at LT. Farrell and colleagues show that performance in long-distance running is more closely related to the oxygen consumption at LT than to sub-extreme load economy. Results of these studies of long-distance runners with uneven sports performance suggest long-distance race results