Department of Physiology, Isfahan University of Medical Sciences , Iran.
J Sports Sci Med. 2007 Dec 1;6(4):429-33. eCollection 2007.
Previous studies have shown that physical activity improves learning and memory. Present study was performed to determine the effects of acute, chronic and continuous exercise with different periods on spatial learning and memory recorded as the latency and length of swim path in the Morris water maze testing in subsequent 8 days. Four rat groups were included as follows: 1- Group C (controls which did not exercise). 2- Group A (30 days treadmill running before and 8 days during the Morris water maze testing period). 3- Group B (30 days exercise before the Morris water maze testing period only) and 4- Group D (8 days exercise only during the Morris water maze testing period). The results showed that chronic (30 days) and continuous (during 8 days of Morris water maze testing days) treadmill training produced a significant enhancement in spatial learning and memory which was indicated by decreases in path length and latency to reach the platform in the Morris water maze test (p < 0.05). The benefits in these tests were lost in three days, if the daily running session was abandoned. In group D with acute treadmill running (8 days exercise only) the difference between the Group A disappeared in one week and benefit seemed to be obtained in comparison with the controls without running program. In conclusion the chronic and daily running exercises promoted learning and memory in Morris water maze, but the benefits were lost in few days without daily running sessions in adult rats. Key pointsDaily running influence on spatial memory.The velocity of learning can be influenced by running activity.Path length is important parameter for measuring the speed of learning.
先前的研究表明，身体活动可以改善学习和记忆。本研究旨在确定不同时期的急性、慢性和连续运动对空间学习和记忆的影响，这些影响通过在随后的 8 天中的 Morris 水迷宫测试中记录的潜伏期和游泳路径长度来评估。四个大鼠组如下：1. 组 C（对照组，不运动）。2. 组 A（在 Morris 水迷宫测试期间进行 30 天的跑步机跑步）。3. 组 B（仅在 Morris 水迷宫测试前进行 30 天的运动）和 4. 组 D（仅在 Morris 水迷宫测试期间进行 8 天的运动）。结果表明，慢性（30 天）和连续（在 Morris 水迷宫测试的 8 天中）跑步机训练显著增强了空间学习和记忆，这表现为在 Morris 水迷宫测试中路径长度和到达平台的潜伏期缩短（p < 0.05）。如果每天的跑步课程被放弃，这种训练的益处会在三天内消失。在组 D 中进行急性跑步机跑步（仅在 8 天内进行运动），与组 A 相比，差异在一周内消失，与没有跑步计划的对照组相比，似乎获得了益处。总之，慢性和每日跑步运动促进了 Morris 水迷宫中的学习和记忆，但如果大鼠没有进行每日跑步训练，这种益处会在几天内消失。关键要点：每日跑步对空间记忆的影响。学习速度可以受到跑步活动的影响。路径长度是衡量学习速度的重要参数。
