Acute Exercise Improves Motor Memory Consolidation in Preadolescent Children.
Acute Exercise Improves Motor Memory Consolidation in Preadolescent Children.
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DOI：
10.3389/fnhum.2017.00182
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发表时间：
2017
影响因子：
2.9
通讯作者：
Roig M
中科院分区：
文献类型：
--
作者：
Lundbye-Jensen J;Skriver K;Nielsen JB;Roig M
目的：获得新的运动技能的能力在儿童时期和以后的生活中都是必不可少的。最近的研究表明，急性运动可以改善成年人的运动记忆巩固。本研究的目的是调查是否急性运动协议后，在学校环境中的运动技能的做法，也可以提高长期保留的运动记忆在青春期前的儿童。方法：77名青春期前儿童（年龄10.5 ± 0.75（SD））参加了这项研究。在主要实验之前，对所有儿童的年龄、BMI、健康状况和一般体力活动水平进行了评估，然后将他们随机分配到三组。所有儿童进行视觉跟踪任务，然后进行20分钟的休息（CON），高强度间歇性地板球（FLB）或跑步（RUN），运动强度和持续时间与运动组相当。在获得运动技能后1小时、24小时和7天评估运动记忆的延迟保留。结果：在技能获得过程中，运动表现在立即保持测试中显着改善，组间无差异。技能获得后1小时，RUN的运动表现显著下降。24小时后的技能收购有一个趋势，提高性能的FLB，但没有显着的影响。然而，在运动训练七天后，FLB和RUN的表现都比他们的即时保持测试更好，表明离线收益显着。相反，运动练习7天后，FLB和RUN的运动记忆保持率明显优于CON。比较FLB和RUN时，没有观察到差异。结论：运动技能获得后立即进行的急性剧烈间歇性运动有助于青春期前儿童的长期运动记忆，可能是通过促进记忆巩固。结果还表明，这些效果可以在学校环境中实现。团队比赛的积极影响（即，FLB）和跑步的结果表明，观察到的记忆改善在很大程度上是由生理因素决定的，而不是在锻炼方案期间进行的运动类型。
Objective: The ability to acquire new motor skills is essential both during childhood and later in life. Recent studies have demonstrated that an acute bout of exercise can improve motor memory consolidation in adults. The objective of the present study was to investigate whether acute exercise protocols following motor skill practice in a school setting can also improve long-term retention of motor memory in preadolescent children. Methods: Seventy-seven pre-adolescent children (age 10.5 ± 0.75 (SD)) participated in the study. Prior to the main experiment age, BMI, fitness status and general physical activity level was assessed in all children and they were then randomly allocated to three groups. All children practiced a visuomotor tracking task followed by 20 min of rest (CON), high intensity intermittent floorball (FLB) or running (RUN) with comparable exercise intensity and duration for exercise groups. Delayed retention of motor memory was assessed 1 h, 24 h and 7 days after motor skill acquisition. Results: During skill acquisition, motor performance improved significantly to the immediate retention test with no differences between groups. One hour following skill acquisition, motor performance decreased significantly for RUN. Twenty-four hours following skill acquisition there was a tendency towards improved performance for FLB but no significant effects. Seven days after motor practice however, both FLB and RUN performed better when compared to their immediate retention test indicating significant offline gains. This effect was not observed for CON. In contrast, 7 days after motor practice, retention of motor memory was significantly better for FLB and RUN compared to CON. No differences were observed when comparing FLB and RUN. Conclusions: Acute intense intermittent exercise performed immediately after motor skill acquisition facilitates long-term motor memory in pre-adolescent children, presumably by promoting memory consolidation. The results also demonstrate that the effects can be accomplished in a school setting. The positive effect of both a team game (i.e., FLB) and running indicates that the observed memory improvements are determined to a larger extent by physiological factors rather than the types of movements performed during the exercise protocol.