스포츠생리학 : 흰쥐의 좌골신경 손상 후 운동과 전기 자극이 비복근의 회복에 미치는 영향

초록

This study was performed to evaluate the effect of exercise and electrical stimulation on the recovery of gastrocnemius after sciatic nerve crush of the SD rats. Forty-two Sprague-Dawley rats(male, between 180 to 220g) were divided into 4 groups; exercise(SWIM, n=10), electrical stimulation(ES, n=10), crush(n=11) and sham(n=11). To evaluate the function of the sciatic nerve, twitch tension, conduction velocity and fatigue were measured 5weeks after the injury. The twitch tension, conduction velocity and fatigue were analyzed using ons-way ANOVA to determine whether any significant differences existed between the four treatment groins. The twitch tension and conduction velocity, 5weeks-after the crush was more recovery to normal in ES and SWIM. The fatigue indices in the recovery phase from sciatic nerve crush were not significantly different between the group. These results suggest that swimming and electrical stimulation performed during reinnervation may assist on the recovery of gastrocnemius after sciatic nerve crush.