目的 观察早期空间爬行运动训练对子鼠心理行为的影响,为0~3岁婴幼儿运动方式促进心理行为发展提供理论依据。方法 25只新生鼠随机分为对照组(n=13)和运动组(n=12)。运动组进行早期空间运动训练4周。应用动物行为学平台(转棒仪和旷场试验)对36~37日龄子鼠进行心理行为测定。结果 1)运动组子鼠降落的潜伏期非常明显长于对照组(t=3.031,P<0.01);2)运动组子鼠跨格次数少于对照组(t=3.710,P<0.01);中心区域活动时间明显短于对照组(t=4.259,P<0.01);中心区域活动距离少于对照组(t=3.437,P<0.01);周边区域活动时间长于对照组(t=3.018,P<0.01);3)5 min时间分段分析显示运动组子鼠中心区域活动距离少表现在首5 min,活动时间短表现在后5 min。结论 早期空间爬行运动可使子鼠对新环境认知能力增加、情绪稳定和运动协调性明显增加。

Objective To observe effects of crawl space sports training from early age on psychological behavior of rats. Methods A total of 25 newborn rats were randomly divided into control group (n=13) and exercise group (n=12).The newborn rats of the exercise group were trained by space motion for four weeks.Rats of 36~37 day-old was measured on the psychological behavior by animal behavior platform,which included Rota-Rod instrument and open-field test instrument. Results 1) The landing latency of exercise group was significantly longer than that of the control group (t=3.031,P<0.01).2) The number of cross grid in exercise group was fewer than that in control group (t=3.710,P<0.01).The activity time in the center area was shorter than that of the control group (t=4.259,P<0.01).The activity time in the peripheral area was longer than that of the control group (t=3.018,P<0.01).3) 5 minutes time-phased analysis showed less activity distance was in first five minutes and shorter activity time was in later five minutes in the center area by. Conclusions The crawl space sports training from early age increased rats' cognitive ability and emotional stability facing new environment.There is a significant increase in rat's motor coordination.