负压-常压疲劳恢复过程中血乳酸、肌酸激酶等指标的特征分析

摘要

Objective:To study the change and characteristics of blood lactate,creatine kinase and other indicators in different recovery processes under the same fatigue mode,and thus investigate the effectiveness of lower limb negative pressure - normal pressure chamber for quick recovery of physical exercise fatigue. Methods:To make the subjects exhaustive with exercise training and then respectively take 3 different ways for restoration(30 min),i. e. , lower limb negative pressure - normal pressure chamber,traditional recovery(15 min jogging and 15 min manual massage)and natural recovery(stay still for a rest). To detect changes in blood lactate,creatine kinase( CK) and blood urea nitrogen( BUN ) before and after restoration and record the subjective feeling of fatigue and heart rate of the subjects. Results:1) Changes of related indicators took place in different restorations. Immediately after restoring in chambers or the traditional way,the blood lactate was significantly different( P < 0. 05) compared with the natural recovery group,while heart rate and subjective fatigue feeling had no difference. 2)For CK changes,24 hours after restoration,compared with the natural recovery group,there was a significant difference(P < 0. 05)in the groups with chamber recovery or traditional recovery. 3)For the related indicators immediately after the restoration,there was no significant difference in heart rate and the subjective feeling of fatigue. Conclusions:1)From the blood lactate indicator,the chamber recovery after physical exercise fatigue had the best effect, followed by massage recovery,and natural recovery was the worst. 2)From the CK indicator, the chamber recovery and massage recovery in the initial period(within 1 h after training)are not as good as natural recovery. 3)The use of lower limb negative pressure - normal pressure recovery chamber for recovery can help improve the circulation of blood and lymphatic system,break down blood lactate and CK,and improve capillary function.%目的：研究同一疲劳模式下，不同方式恢复过程中血乳酸、肌酸激酶等指标的变化及特征性，探讨下肢负压-常压体能快速恢复舱对运动性疲劳恢复的快速、有效性。方法：利用运动训练疲劳模式令受试者达到力竭后，分别采用下肢负压-常压恢复舱恢复、传统恢复（15min 慢跑和15min 人工按摩）和自然恢复（静止休息）3种不同的恢复方式（30min）。检测恢复前后的血乳酸、肌酸激酶（CK）和血尿素氮（BUN）等相关指标的变化情况，并记录受试者的主观感觉疲劳程度和心率值。结果：1）不同方式恢复后相关指标变化，在30min 下肢负压-常压恢复舱或传统方式恢复后即刻，受试者血乳酸与自然恢复组相比较具有显著性（P <0.05），而心率和主观疲劳感觉无差异。2）次日肌酸激酶（CK）的变化，经30min 下肢负压-常压恢复舱或传统方式恢复后经24小时，受试者 CK 与自然恢复组相比较具有显著性（P <0.05）。3）恢复后即刻相关指标变化：心率和主观疲劳感觉无明显差异。结论：1）从血乳酸值恢复情况说明，进舱恢复对运动性疲劳后体能的恢复及再生有较好的效果，按摩恢复次之，自然恢复最差。2）从肌酸激酶恢复情况说明，进舱恢复和按摩恢复在恢复初期（训练后1h 内）效果均不如自然恢复。3）利用下肢负压-常压恢复舱进行恢复，有利于血液和淋巴系统循环，血乳酸、肌酸激酶等的分解以及毛细血管功能的改善。