PDF(Pubmed)
Abstract：
Purpose: It has previously been reported that repeated exposure to hypoxia increases spleen size and haemoglobin (HGB) level and recent reports on the effect apnoea has on spleen size and haematological parameters are contradictory. Therefore, this study aims to evaluate the effect apnoea training has on spleen size and haematological parameters. Methods: The breath-holding (BH) group was comprised of 12 local student-athletes with no BH exercise experience who performed BH jogging and BH jumping rope dynamic apnoea protocols, five times weekly for 8 weeks. The BH event duration was progressively increased as the apnoea tolerance of the athletes improved (20 to 35 s). The same training task was performed by the control group (n = 10) without BH. Spleen sizes were measured with an ultrasound system and a complete blood cell analysis was performed on the median cubital venous blood. Results: Spleen volume in the BH group increased from 109 ± 13 ml to 136 ± 13 ml (p < 0.001), and bulky platelets decreased from 70.50 ± 5.83 to 65.17 ± 5.87 (p = 0.034), but no changes were recorded for erythrocytes (p = 0.914), HGB (p = 0.637), PLTs (p = 0.346) and WBC (p = 0.532). No changes were recorded for the control group regarding spleen size or haematological parameters. Conclusion: Eight weeks of dry dynamic apnoea training increased spleen size and decreased the number of circulating bulky platelets in the athletes who were assessed in this study. However, the baseline RBC counts and HGB levels of the athletes were not altered by the training programme.
摘要：
目的：先前有报道称反复暴露于缺氧会增加脾脏的大小和血红蛋白（HGB）水平，而最近有关呼吸暂停对脾脏大小和血液学参数的影响的报道是矛盾的。因此,本研究旨在评估呼吸暂停训练对脾脏大小和血液参数的影响。方法：屏气（BH）组由12名没有BH运动经验的当地学生运动员组成，他们进行了BH慢跑和BH跳绳动态呼吸暂停协议，每周五次，共8周。随着运动员的呼吸暂停耐受性的提高（20至35s），BH事件持续时间逐渐增加。没有BH的对照组(n=10)执行相同的训练任务。用超声系统测量脾脏大小，并对肘静脉血中进行全血细胞分析。结果：BH组脾脏体积从109±13ml增加到136±13ml（p<0.001），大体积血小板从70.50±5.83下降到65.17±5.87（p=0.034），但没有记录到红细胞的变化（p=0.914），HGB（p=0.637），PLT(p=0.346)和WBC(p=0.532)。对照组的脾脏大小或血液学参数没有变化。结论：在这项研究中评估的运动员中，八周的干动力呼吸暂停训练增加了脾脏大小并减少了循环大血小板的数量。然而,运动员的基线RBC计数和HGB水平没有因训练计划而改变.
