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Changes of Cardiac Biomarkers in Ultramarathon Runners
Physical Activity Review ( IF 0.8 ) Pub Date : 2019-01-01 , DOI: 10.16926/par.2019.07.11
Martin Nosek , Štefan Balkó , Jan Adamec , Dagmar Partlova , Vlastimil Chytrý

Introduction: The aim of this study is to examine and evaluate the effects of long-term stress on muscle and heart biomarkers after completing a 100 km ultramarathon. Material and Methods: Venous blood samples of nine runners (average age 38.8±10.2 years), who successfully finished a 100 km ultramarathon at an elevation of 3130 m, were examined before the start, at the finish line immediately after the run, one day after the run and then after 5 and 10 days. Clinical, laboratory, and somatometric data were obtained from all measurements, and biomarkers: aspartate aminotransferase (AST), cortisol (COR), troponin T (cTnT), creatine kinase (CK) and C-reactive protein (CRP). Also, their training experience and ultramarathon experience was monitored. Discovered values were further analyzed with the use of t-test a ω2 (ω2≥0.1), and Spearman’s rank correlation coefficient (r) at the significance level of p<0.05. Results: The average finish time of the runners was 13:55:40 (min: 12:12:35, max: 16:52:02). After finishing the ultramarathon, runners showed an average weight loss of 2.4 kg (p<0.05). The results show that hematological changes were caused by physiological stress and long-term physical load. The values of all monitored biomarkers showed a significant exceeding of the normal values immediately after the race in 8 competitors out of 9. The values of cTnT showed an increase of more than 50 % (pre-race: 8.2±2.3, post-race: 34.22±25.9 ng/l, max=98 ng/l). After 24 hours, however, this condition had returned to the normal values for all participants. The results show that the AST hepatic enzymes significantly correlated with the training experience (r=-0.41, p=0.043), the total number of kilometers run per year (r=-0.45, p=0.04) and the achieved finish time (r=0.67, p=0.001). At the same time, athletes who had the best finish time achieved lower CRP values (r=0.74, p=0.023) and cTnT values (r=0.49, p=0.040). The study found that the competitors who had the longest experience with ultramaraton had the lowest cTnT (r=0.44, p=0.050). Conclusion: Long-term physical stress is associated with metabolic and cardiovascular changes. Blood abnormalities found in our study suggest that due to long-lasting extreme stress, heart exhaustion may occur. However, these changes did not last long and after a few days they returned to the normal values for all runners.

中文翻译:

超马拉松运动员心脏生物标志物的变化

简介:这项研究的目的是在完成100公里的超马拉松比赛后检查和评估长期压力对肌肉和心脏生物标志物的影响。材料和方法:开始前,跑步后立即在终点线检查9名跑步者(平均年龄38.8±10.2岁)的静脉血样本,他们成功完成了海拔3130 m的100公里超马拉松比赛。运行后,再经过5天和10天。临床,实验室和躯体测量数据均来自所有测量值和生物标记物:天冬氨酸转氨酶(AST),皮质醇(COR),肌钙蛋白T(cTnT),肌酸激酶(CK)和C反应蛋白(CRP)。此外,他们的训练经验和超级马拉松经验也受到监测。使用t检验ω2(ω2≥0.1)进一步分析发现的值,Spearman等级相关系数(r)在显着性水平p <0.05。结果:跑步者的平均完成时间为13:55:40(最小:12:12:35,最大:16:52:02)。参加超级马拉松比赛后,跑步者的平均体重减轻了2.4公斤(p <0.05)。结果表明,血液学变化是由生理压力和长期的物理负荷引起的。9名选手中,有8名参加了比赛,所有监测到的生物标志物的值均显着超过正常值。cTnT值显示增幅超过50%(赛前:8.2±2.3,赛后: 34.22±25.9 ng / l,最大值= 98 ng / l)。但是,在24小时之后,所有参与者的这种状况都恢复到正常值。结果表明AST肝酶与训练经验显着相关(r = -0.41,p = 0。043),每年行驶的公里总数(r = -0.45,p = 0.04)和达到的完成时间(r = 0.67,p = 0.001)。同时,完成时间最佳的运动员的CRP值较低(r = 0.74,p = 0.023)和cTnT值较低(r = 0.49,p = 0.040)。研究发现,拥有超马拉松经验最长的竞争对手的cTnT最低(r = 0.44,p = 0.050)。结论:长期的身体压力与代谢和心血管变化有关。我们研究中发现的血液异常表明,由于长期的极端压力,可能会导致心脏衰竭。但是,这些更改并没有持续很长时间,几天后它们又恢复为所有跑步者的正常值。完成时间最佳的运动员的CRP值较低(r = 0.74,p = 0.023)和cTnT值较低(r = 0.49,p = 0.040)。研究发现,拥有超级马拉松经验最长的竞争对手的cTnT最低(r = 0.44,p = 0.050)。结论:长期的身体压力与代谢和心血管变化有关。我们研究中发现的血液异常表明,由于长期的极端压力,可能会导致心脏衰竭。但是,这些更改并没有持续很长时间,几天后它们又恢复为所有跑步者的正常值。完成时间最佳的运动员的CRP值较低(r = 0.74,p = 0.023)和cTnT值较低(r = 0.49,p = 0.040)。研究发现,拥有超级马拉松经验最长的竞争对手的cTnT最低(r = 0.44,p = 0.050)。结论:长期的身体压力与代谢和心血管变化有关。我们研究中发现的血液异常表明,由于长期的极端压力,可能会导致心脏衰竭。但是,这些更改并没有持续很长时间,几天后它们又恢复为所有跑步者的正常值。长期的身体压力与代谢和心血管变化有关。我们研究中发现的血液异常表明,由于长期的极端压力,可能会导致心脏衰竭。但是,这些更改并没有持续很长时间,几天后它们又恢复为所有跑步者的正常值。长期的身体压力与代谢和心血管变化有关。我们研究中发现的血液异常表明,由于长期的极端压力,可能会导致心脏衰竭。但是,这些更改并没有持续很长时间,几天后它们又恢复为所有跑步者的正常值。
更新日期:2019-01-01
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