在训练有素的三项运动员中,奥林匹克距离双马比赛和心脏表现
J A Donaldson1, J D Wiles2, M Papadakis3,4
1Department of Cardiovascular Sciences, College of Life Sciences, Cardiovascular Research Science, Glenfield Hospital, Leicester, UK.
Physiological reports
|December 26, 2024
概括
奥运会双项运动的运动影响心脏功能类似于三项运动. 虽然运动后心脏热素的水平仍然很高,但心脏功能在24小时内恢复,不会影响后续的表现.
科学领域:
- 运动生理学 运动生理学
- 心血管科学 心血管科学
- 运动医学 运动医学
背景情况:
- 三项赛事已确定的心脏影响与双项赛 (跑步-自行车-跑步) 的有限数据形成鲜明对比,这是由于环境问题而形成的替代形式.
- 了解双马赛的心血管和自主需求对于运动员的健康和表现至关重要,特别是在恢复方面.
- 以前的研究表明,心脏功能通常在运动后24-7天内恢复,但缺少双马赛特定的恢复数据.
研究的目的:
- 为了调查心脏,自主,血液动力学和生物标志物反应在奥林匹克距离双马赛期间和之后.
- 评估心脏功能的恢复及其对双马赛运动后后续表现的影响.
- 为了比较连续和中断双马比赛协议之间的反应.
主要方法:
- 十名训练有素的男性运动员完成了两项基于实验室的奥林匹克距离双马赛 (连续和断裂) 隔7天.
- 心声学 (常规和斑点跟踪) 评估了左心室功能和全球纵向应变.
- 在运动前和运动后测量了心率变化 (HRV) 和高灵敏度心脏托洛T (hs-cTnT).
主要成果:
- 双马运动诱导了心脏功能和生物标志物改变,与三马和独立耐力赛相比.
- 运动后24小时心脏热素仍然升高,但在24小时内心脏功能完全恢复.
- 功能恢复没有影响随后的双马竞比赛表现或7天后的测量.
结论:
- 奥林匹克距离双马赛引起的心脏反应类似于三马赛,功能恢复发生在24小时内.
- 生物标志物 (心脏热素) 的升高持续时间比功能恢复更长.
- 需要进一步的研究来确定精英和休运动员是否经历了类似的反应和恢复模式.
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