Frith Emily, Sng Eveleen, Loprinzi Paul D
Physical Activity Epidemiology Laboratory, Exercise Psychology Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, MS 38677, USA.
Jackson Heart Study Vanguard Center at Oxford, Physical Activity Epidemiology Laboratory, Exercise Psychology Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi, MS 38677, USA.
J Clin Med. 2018 Jun 11;7(6):147. doi: 10.3390/jcm7060147.
We evaluated the effects of exercise on proactive memory interference. Study 1 ( = 88) employed a 15-min treadmill walking protocol, while Study 2 ( = 88) included a 15-min bout of progressive maximal exertion treadmill exercise. Each study included four distinct groups, in which groups of 22 participants each were randomly assigned to: (a) exercise before memory encoding, (b) a control group with no exercise, (c) exercise during memory encoding, and (d) exercise after memory encoding (i.e., during memory consolidation). We used the Rey Auditory Verbal Learning Test (RAVLT) to assess proactive memory interference. In both studies, the group that exercised prior to memory encoding recalled the most words from list B (distractor list) of the RAVLT, though group differences were not statistically significant for Study 1 (walking exercise) ( = 0.521) or Study 2 (high-intensity exercise) ( = 0.068). In this sample of young adults, high intensity exercise prior to memory encoding showed a non-significant tendency to attenuate impairments in recall attributable to proactive memory interference. Thus, future work with larger samples is needed to clarify potential beneficial effects of exercise for reducing proactive memory interference.
我们评估了运动对前摄记忆干扰的影响。研究1（n = 88）采用了15分钟的跑步机步行方案，而研究2（n = 88）包括15分钟的渐进式最大运动强度跑步机锻炼。每项研究都包括四个不同的组，每组22名参与者被随机分配到：（a）记忆编码前运动，（b）无运动的对照组，（c）记忆编码期间运动，以及（d）记忆编码后运动（即记忆巩固期间）。我们使用雷伊听觉词语学习测验（RAVLT）来评估前摄记忆干扰。在两项研究中，记忆编码前运动的组从RAVLT的B列表（干扰列表）中回忆出的单词最多，尽管研究1（步行运动）（p = 0.521）或研究2（高强度运动）（p = 0.068）的组间差异无统计学意义。在这个年轻成年人样本中，记忆编码前的高强度运动显示出一种不显著的趋势，即减轻由前摄记忆干扰引起的回忆损伤。因此，需要未来用更大样本的研究来阐明运动对减少前摄记忆干扰的潜在有益作用。
