一次最大速度的1500米自由式运动会降低了运动员的认知功能
Zhijie Lai1,2, Weiwei Huang3, Wentao Lin4,5
1Department of Graduation, Guangzhou Sport University, Guangzhou, China.
Frontiers in psychology
|December 21, 2023
概括
在1500米自由泳比赛中,最大的努力显著损害了认知功能,如舒尔特网格和Trail-making测试等测试的表现下降. 这种认知衰退与前额叶皮层内大脑氧化量的变化有关.
科学领域:
- 运动科学 运动科学 运动科学
- 神经科学是一个神经科学.
- 运动生理学 运动生理学
背景情况:
- 运动可以增强认知功能,但效果因方式,强度和持续时间而异.
- 关于竞技运动对认知功能的影响的研究有限.
- 1500米自由泳是一项要求很高的奥运会游泳赛事.
研究的目的:
- 研究最大速度1500米自由泳对认知功能的影响.
- 使用血红蛋白氧化差异 (Hbdiff) 分析认知衰退的机制.
主要方法:
- 13名男子大学游泳运动员完成了最大1500米的自由泳比赛.
- 认知功能通过舒尔特网格测试 (SGT),Trail-making测试 (TMT) 和数字跨度测试 (DST) 在赛前和赛后进行评估.
- 功能近红外谱学 (fNIRS) 测量了前额叶皮质 (PFC) 活动,响应时间 (RT) 和精度 (ACC).
主要成果:
- 在SGT,TMT和数字跨度测试-向后 (DST-B) 中观察到显著的认知下降 (p < 0.01).
- 在右前极区域 (R-FPA),右背侧前额皮质 (R-DLPFC) 和中间背侧前额皮质 (M-DLPFC) 的氧化血红素 (Oxy-Hb) 度发生变化.
- 在关键的PFC区域内,右脑区域的显著激活和Oxy-Hb的整体变化 (p < 0.01).
结论:
- 耗尽1500米自由泳会导致身体疲劳和认知障碍.
- 认知衰退与FPA,DLPFC和M-DLPFC区域的PFC激活有关.
- 在PFC中功能连接的改变可能会导致强度运动后认知功能减弱.
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