冬季两项运动员和越野滑雪运动员在剧烈运动前后射击时额叶θ波活动的比较。
A Comparison of Frontal Theta Activity During Shooting among Biathletes and Cross-Country Skiers before and after Vigorous Exercise.
作者信息
Luchsinger Harri, Sandbakk Øyvind, Schubert Michael, Ettema Gertjan, Baumeister Jochen
机构信息
Centre for Elite Sports Research, Department of Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway.
Institute of Sports Medicine, Department Exercise & Health, University of Paderborn, Paderborn, Germany.
出版信息
PLoS One. 2016 Mar 16;11(3):e0150461. doi: 10.1371/journal.pone.0150461. eCollection 2016.
BACKGROUND
Previous studies using electroencephalography (EEG) to monitor brain activity have linked higher frontal theta activity to more focused attention and superior performance in goal-directed precision tasks. In biathlon, shooting performance requires focused attention after high-intensity cross-country skiing.
PURPOSE
To compare biathletes (serving as experts) and cross-country skiers (novices) and examine the effect of vigorous exercise on frontal theta activity during shooting.
METHODS
EEG frontal theta (4-7 Hz) activity was compared between nine biathletes and eight cross-country skiers at comparable skiing performance levels who fired 100 shots on a 5-m indoor shooting range in quiescent condition followed by 20 shots after each of five 6-min high-intensity roller skiing sessions in the skating technique on a treadmill.
RESULTS
Biathletes hit 80±14% and 81±10% before and after the roller skiing sessions, respectively. For the cross-country skiers these values were significantly lower than for the biathletes and amounted to 39±13% and 44±11% (p<0.01). Biathletes had on average 6% higher frontal theta activity during shooting as compared to cross-country skiers (F1,15 = 4.82, p = 0.044), but no significant effect of vigorous exercise on frontal theta activity in either of the two groups were found (F1,15 = 0.14, p = 0.72).
CONCLUSIONS
Biathletes had significantly higher frontal theta activity than cross-country skiers during shooting, indicating higher focused attention in biathletes. Vigorous exercise did not decrease shooting performance or frontal theta activity during shooting in biathletes and cross-country skiers.
背景
以往使用脑电图（EEG）监测大脑活动的研究表明，较高的额叶θ波活动与更集中的注意力以及在目标导向的精准任务中的卓越表现相关。在冬季两项运动中，射击表现需要在高强度越野滑雪后保持集中注意力。
目的
比较冬季两项运动员（作为专家）和越野滑雪运动员（新手），并研究剧烈运动对射击过程中额叶θ波活动的影响。
方法
比较了9名冬季两项运动员和8名越野滑雪运动员在安静状态下于5米室内射击场进行100次射击时的脑电图额叶θ波（4 - 7赫兹）活动，以及在跑步机上以滑冰技术进行五次6分钟高强度越野滑雪训练后每次再进行20次射击时的情况，两组运动员的滑雪表现水平相当。
结果
冬季两项运动员在越野滑雪训练前和后的射击命中率分别为80±14%和81±10%。越野滑雪运动员的这些数值显著低于冬季两项运动员，分别为39±13%和44±11%（p<0.01）。与越野滑雪运动员相比，冬季两项运动员在射击时额叶θ波活动平均高出6%（F1,15 = 4.82，p = 0.044），但未发现剧烈运动对两组运动员的额叶θ波活动有显著影响（F1,15 = 0.14，p = 0.72）。
结论
冬季两项运动员在射击时的额叶θ波活动显著高于越野滑雪运动员，表明冬季两项运动员的注意力更集中。剧烈运动并未降低冬季两项运动员和越野滑雪运动员在射击时的表现或额叶θ波活动。
Zotero 插件