하지의 위치 제어 동작연습이 소뇌질환 환자의 운동학습에 미치는 영향

Abstract

Impairments in distance control of lower limb movements are often major causes of motor handicap such as falls i n patients w ith cerebellar ataxia ( CA). T he a im o f this s tudy w as to investig ate motor learning ability for distance control of lower limb`s movement in CA patients. Twenty-four participants were divided into two groups: 12 patients with motor impairments due to cerebellar disease and 12 no-impairment control group. Participants were instructed to reach to targets presented at distance of 5cm or 15cm with right lower limb for acquisition of motor skill. Kinematic data were collected to determine movement accuracy from start position to target. The results showed that both groups showed significant improvement in learning target distances with their lower limbs even thought distance errors were higher in CA patients. Interestingly, individual group analysis for retention test indicated that even though the cerebellum is damaged, motor learning effects for lower limb movements were occurred in CA patients. These findings demonstrate that motor learning for distance control of lower limb can occur through repeated practice in CA patients suggesting feasibility for rehabilitation to enhance their control ability of lower limb movement.