早期平衡木运动对新生鼠心理行为的影响

Effect of early balance beam exercise on psychological behavior of neonatal rats

目的观察早期平衡木运动对新生鼠心理行为的影响。方法 32只新生鼠随机分为对照组和运动组各16只。运动组进行平衡木运动训练4周。应用动物行为学平台（旷场试验）对36-37日龄新生鼠进行心理行为测定。结果1）运动组中心区域活动时间短（1.441±0.946）min,对照组（2.237±0.724）min,差异有统计学意义（t=2.673,P〈0.05）;2）运动组中心区域活动距离少（326.633±106.218）cm,对照组（427.116±102.185）cm,差异有统计学意义（t=2.727,P〈0.05）;3）运动组周围区域活动时间长（8.559±0.946）min,对照组（7.735±0.721）min,差异有统计学意义（t=3.226,P〈0.01）;4）运动组周围区域活动距离多（1 208.667±176.794）cm,对照组（1 062.900±118.085）cm,差异有统计学意义（t=2.721,P〈0.05）。结论早期平衡木运动可增加新生鼠对新环境认知能力和情绪稳定性。

Objective To observe the balance beam exercise on psychological behavior of neonatal rats. Methods A total of 32 newborn rats were randomly divided into control group （n= 16） and exercise group （n= 16）. The neonatal rats of the exercise group were trained by balancing for four weeks. And the rats of 36-37 day-old underwent a psychological behavior measurement by animal behaviour platform （open-field test）. Results 1） The time of acting in the central area of exercise group [（1. 441-0. 946） mini was shorter than that 0f control group [（2. 237-0. 724） rain,t= 2. 673, P〈0.05]. 2）The distance of acting in the central area of exercise group [（326. 633± 106. 218） cm] was less than that of control group [（427. 116±102. 185） cm,t=2. 727,P〈0.05]. 3） The time of acting in the surrounding area of exercise group [（8. 559± 0. 946） mini was longer than that of control group [（7. 735±0. 721） rain,t=3. 226,P〈0.01]. 4）The distance of acting in the surrounding area of exercise group [（1 208. 667±176. 794） cm] was longer than that of control group [（1 062. 900i 118. 085） cm,t=2. 721 ,P〈0.05]. Conclusions Early balance beam exercise increase rats＇ cognitive ability and emotional stability in the new environment.