EFFECT OF VOLUNTARY EXERCISE ON OPEN-FIELD BEHAVIOR AND ON AGGRESSION IN THE SPONTANEOUSLY HYPERTENSIVE RAT (SHR)
EFFECT OF VOLUNTARY EXERCISE ON OPEN-FIELD BEHAVIOR AND ON AGGRESSION IN THE SPONTANEOUSLY HYPERTENSIVE RAT (SHR)
复制标题
DOI：
10.1016/s0163-1047(87)90461-4
复制
发表时间：
1987-05-01
期刊：
影响因子：
--
通讯作者：
ELY, D
中科院分区：
文献类型：
--
作者：
HOFFMANN, P;THOREN, P;ELY, D
In the present study we investigated the influence of voluntary exercise on exploratory behavior and on aggression in the spontaneously hypertensive rat (SHR). Twenty-four SHR (8 weeks old) were randomly assiged to either an exercise group or a sedentary control group. The animals in the exercise group exhibited a spontaneous wheel running activity of 5-6 km/day during 6 weeks. The characteristic hyperexploratory behavior of SHR was lowered in the exercise group (p < .001) as compared to the control group. The runners also showed a tendency for less aggression. In the postexercise period, when the runners'' wheels were locked, the exercise group had a significant rise in aggression (p < .01) vs the controls. The exploratory behavior returned immediately to the level of the controls, but we found no further increase in any of the parameters measured. However, the runners showed a type of displaced aggression exhibited as digging and biting in the test cage. This evidence suggests that voluntary exercise lowers the hyperexploratory behavior and aggression in the SHR and that an abrupt stop in exercise gives an "abstinence" reaction.
