Rinker-Ross School of Health Sciences, Trine University, Fort Wayne, IN, USA.
Department of Kinesiology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA.
Sports Biomech. 2020 Feb;19(1):76-89. doi: 10.1080/14763141.2018.1472798. Epub 2018 Jun 14.
A potential challenge associated with sports is that athletes must often perform the cognitive processing associated with decision-making (i.e., movement selection) when fatigued. The purpose of this systematic review was to summarise studies that have analysed the extent to which fatigue influences the effects of decision-making on lower extremity mechanics during execution of common sports manoeuvres. We specifically focused on mechanics associated with ACL injury risk. Reviewers searched the PubMed, SPORTDiscus, CINAHL and Web of Science databases. The search identified 183 unique articles. Five of these articles met our eligibility criteria. Two of the studies incorporated fatigue protocols where athletes progressed to exhaustion and found that the effects of decision-making on mechanics were more pronounced with fatigue. The nature of the results appears to indicate that fatigue may compromise an athlete's cognitive processing in a manner that diminishes their ability to control movement when rapid decision-making is required. However, three subsequent studies utilised fatigue protocols designed to mimic sports participation and found that fatigue did not influence the effects of decision-making on mechanics. In general, these findings appear to indicate that fatigue may only affect the cognitive processing associated with decision-making when athletes approach a state of exhaustion.
运动可能带来的一个挑战是，运动员在疲劳时必须经常进行与决策相关的认知处理（即运动选择）。本系统综述的目的是总结分析疲劳对常见运动动作执行过程中下肢力学决策影响程度的研究。我们特别关注与 ACL 损伤风险相关的力学。审查员搜索了 PubMed、SPORTDiscus、CINAHL 和 Web of Science 数据库。搜索确定了 183 篇独特的文章。其中 5 篇文章符合我们的资格标准。其中两项研究纳入了疲劳方案，运动员进展到力竭，发现疲劳对力学的影响更为明显。结果的性质似乎表明，疲劳可能以一种降低运动员在需要快速决策时控制运动能力的方式损害他们的认知处理能力。然而，随后的三项研究使用了模拟运动参与的疲劳方案，发现疲劳并不影响决策对力学的影响。总的来说，这些发现似乎表明，只有当运动员接近力竭状态时，疲劳才会影响与决策相关的认知处理。
