游泳运动员有氧耐力训练中个体乳酸阈的应用

The Application of Individual Lactic Acid Threshold in Aerobic Endurance Training of Swimming Athletes

目的:通过针对性的四周有氧耐力训练,观察游泳运动员阶段训练前后个体乳酸阈和机能变化状况。方法:8名男子自由泳运动员作为受试通过7×200 m递增负荷试验测试个体乳酸阈,据此安排四周针对性的有氧耐力训练,阶段训练后测试个体乳酸阈。结果:1)个体乳酸阈值由(3.79±0.42)mmol/L上升至(3.92±0.61)mmol/L,个体乳酸阈对应的泳速由(1.48±0.08)m/s提高至(1.50±0.03)m/s,差异具显著性(p<0.05)。2)血乳酸—泳速曲线发生明显右移。结论:游泳运动员在四周有氧耐力训练后个体乳酸阈值升高,机体有氧代谢能力提高。

objective： to observe the changes of swimming athletes＇ individual lactic acid threshold（ILAT） and physical function after the four weeks intensive aerobic endurance training.Method： the ILAT value of eight male freestyle swimming athletes was measured through 7×200m incremental load test.According to the ILAT value,they performed four weeks intended aerobic endurance training.The ILAT value was also measured after four weeks training stage.Result：1）The ILAT value rose to 3.92±0.61mmol/L from 3.79±0.42 mmol/L and the corresponding swimming velocity increased to 1.50±0.03 m/s from 1.48±0.08 m/s.The differences were significant（p0.05）.2） The blood lactate-swimming velocity curve showed right shift.Conclusion： The ILAT value of swimming athletes rose after four weeks aerobic endurance training,and the aerobic metabolism capacity improved.