【摘要】 通过 16名 40 0～ 80 0m跑项目运动员在程控跑台上完成 40 0m跑极量负荷使运动员机体内堆积大量的乳酸 ,然后分别测定各种不同强度的恢复性运动对血乳酸 (HLa)清除速率的影响 ,观察了血乳酸清除速率与恢复性运动强度的关系 ,从中寻找快速清除血乳酸消除疲劳的最佳强度范围。实验结果表明 :清除血乳酸最快的强度为 40 0m最大强度的 5 0 %～ 6 5 %之间 ,心率在 145～ 16 5次 /min之间。研究表明 ,最佳恢复性运动强度是 40 0m最大强度的 6 0 % ,心率为 15 0～ 16 0次 /min ,此时 16名运动员的跑速为 (4 .2 1± 0 .6 7)m/s,与受试者的跑速无氧阈值 (4 .35± 0 .88)m/s无显著差异 (P >0 .0 5 )。更多还原

【Abstract】 The paper discusses 16 sportsmen finishing 400m running with maximum load on the pre-programmed automatic control runaway, makes sportsmen pile up lots of lactic acid, then determines respectively all different kinds of strength renewing sports’ in clearing rate of Hla and observes relationship between Hla clearing away speed rate and renew sportsman’s strength, and therefore find he optimum strength scope. The experiment shows that cleaing away Hla’s fastest strength in 50%-65%, heart rate is between 145～165time/min.The research result proves that optimum renew sport’s strength is 60% within 400 m, heart rate is 150-160 time/min. In this period the 16 sportsmen’s running speed is (4.21±0.67) m/s, and it has no obvious differences in trainer’s running speed oxygenless value (4.35±0.88)m/s (P>0.05)更多还原