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目的 研究不同负荷形式的生理生化指标变化与武警战士的有氧代谢能力的关系 ,为有氧代谢能力的评定提供理论和实践依据。方法 通过亚极量踏阶运动间接法 ,测定VO2 max(最大摄氧量 ) ,选取通过有针对性的有氧耐力训练后 ,VO2 max较高的 1组作为实验组 ,较低的 1组作为对照组 ,对两组战士分别进行极量负荷和定量负荷实验 ,测定负荷后和某负荷阶段的有关生理生化、生理心理指标。结果 定量负荷后 ,实验组的血乳酸 (Bla)和心率 (HR)值均低于对照组 (P <0 .0 1) ;负荷后的恢复期 ,实验组的指标变化情况优于对照组 (P <0 .0 5或P <0 .0 1) ,在运动过程中 ,随着负荷量的增加 ,实验组的主体感觉 (RPE)值低于对照组。极量负荷后 ,两组间的HR值无显著性差异 ,实验组的Bla高于对照组。结论 不同负荷形式的生理、生化指标的变化能够反映武警战士不同的有氧代谢能力 ,在选择有氧耐力训练安排中有应用价值。
Objective To study the relationship between the changes of physiological and biochemical indexes under different load types and the aerobic capacity of armed police soldiers, and to provide theoretical and practical evidence for the evaluation of aerobic metabolic capacity. Methods VO2max (maximal oxygen uptake) was determined by the indirect sub-step treadmill exercise method. One group with higher VO2 max was selected as the experimental group and the lower one was selected as the experimental group by aerobic endurance training. Control group, two groups of soldiers were heavy load and quantitative load test, after load and load stage of the relevant physiological and biochemical, physiological and psychological indicators. Results After the quantitative load, the blood lactate (Bla) and heart rate (HR) in the experimental group were lower than those in the control group (P <0.01). The changes in the experimental group were better than those in the control group P <0.05 or P <0.01). During the exercise, the RPE of the experimental group was lower than that of the control group as the load increased. There was no significant difference in HR values between the two groups after a very heavy load, and Bla in the experimental group was higher than that in the control group. Conclusion The changes of physiological and biochemical indexes under different load forms can reflect the different aerobic metabolism ability of Armed Police Corps and have application value in the selection of aerobic endurance training arrangement.