Positive Relationship Between Precompetitive Sympathetic Predominance and Competitive Performance in Elite Extreme Sports Athletes.
Positive Relationship Between Precompetitive Sympathetic Predominance and Competitive Performance in Elite Extreme Sports Athletes.
复制标题
DOI：
10.3389/fspor.2021.712439
复制
发表时间：
2021
影响因子：
2.7
通讯作者：
Kashino M
中科院分区：
文献类型：
--
作者：
Matsumura S;Watanabe K;Saijo N;Ooishi Y;Kimura T;Kashino M
优秀运动员在竞争环境中在高压下取得上级表现。虽然它是已知的，这种情况下会影响竞争前活动的自主神经系统（ANS），竞争前ANS活动和性能之间的关系仍然存在争议。特别是在极限运动中，已经表明运动员在比赛尝试之前会出现心脏交感神经紧张。然而，竞争前交感神经紧张和性能之间的关系尚不清楚。为了探讨这种关系在极限运动中，我们组织了一个自由式滑雪板跳跃比赛，并检查了运动员的生理状态和表现在这个事件。20名优秀单板滑雪运动员在每次跳跃前10分钟在不同的竞争情况下测量心电图（ECG）：练习，资格赛，和最后的会议。平均心率（HR）、低频与高频分量比LF/HF比值，心率变异性（HRV）频域HF（lnHF）分量的对数，所有R-R间期的标准差与R-R间期连续差值的均方根的比值根据ECG数据计算HRV时域的SDNN/rMSSD比值（SDNN/rMSSD比值）和rMSSD。结果显示，随着疗程的进行，平均HR显著增加，HRV的lnHF分量和rMSSD显著降低。HRV的平均HR、LF/HF比值和SDNN/rMSSD比值与比赛成绩呈显著正相关，而HRV的lnHF分量和rMSSD与比赛成绩呈显著负相关。我们的研究结果表明，竞争前ANS活动成为主要是交感神经在精英极限运动员，如自由式滑雪板，当竞争加剧，这种交感神经优势是正相关的竞争表现。
Elite athletes achieve superior performance under high pressure in competitive situations. Although it is known that such situations affect the precompetitive activity of their autonomic nervous system (ANS), the relationship between precompetitive ANS activity and performance remains controversial. Especially in extreme sports, it has been shown that cardiac sympathetic tone occurs in athletes before competition attempts. However, the relationship between precompetitive sympathetic tone and performance is unclear. To investigate this relationship in extreme sports, we organized a freestyle snowboard jumping competition and examined competitors' physiological states and performance during this event. The electrocardiograms (ECGs) of 20 elite snowboarders were measured 10 min before each jump in different competitive situations: practice, qualifying, and final sessions. The mean heart rate (HR), the low-frequency to high-frequency component ratio (LF/HF ratio), the logarithm of the HF (lnHF) component of the frequency-domain of the heart rate variability (HRV), the ratio of the standard deviation of all R–R intervals to the root mean square of successive differences of R–R intervals (SDNN/rMSSD ratio), and the rMSSD of the time-domain of the HRV were calculated from the ECG data. The results showed a significant increase in the mean HR as well as significant decreases in the lnHF component and rMSSD of the HRV as the sessions progressed. Interestingly, the mean HR, LF/HF ratio and SDNN/rMSSD ratio of the HRV showed significant positive correlations with competitive scores, and the lnHF component and rMSSD of the HRV showed significant negative correlations with the scores. Our results indicate that precompetitive ANS activity becomes predominantly sympathetic in elite extreme athletes, such as freestyle snowboarders, when the competition intensifies, and that this sympathetic predominance is positively related to competitive performance.
登录
查看更多内容
影响因子：
7.6
作者：
BAUMEISTER, RF
通讯作者：
BAUMEISTER, RF
影响因子：
5.8
作者：
Bondanelli, M;Ambrosio, MR;degli Uberti, E
通讯作者：
degli Uberti, E
影响因子：
3.4
作者：
Carrillo, Andres E.;Christodoulou, Vasilios X.;Flouris, Andreas D.
通讯作者：
Flouris, Andreas D.
影响因子：
3.4
作者：
Christiani, Mark;Grosicki, Gregory J.;Flatt, Andrew A.
通讯作者：
Flatt, Andrew A.
影响因子：
3.8
作者：
Laborde S;Mosley E;Thayer JF
通讯作者：
Thayer JF