본 연구는 swiss ball LSE에 따른 하지 경직도, 균형 및 보행에 관한 효과를 알아보고자 BBS, FRT, 수정된 Ashworth 척도(MAS), TUG 측정 분석 하였다. 대상자는 H병원에서 입원 또는 통원치료를 받고 있는 뇌졸중 환자 중 선정기준에 적합한 34명을 고전적 신경물리치료군 17명, swiss ball LSE 실시군에 17명씩 할당하여 하지의 균형능력은 BBS와 FRT, 경직도는 MAS, 보행능력은 TUG를 사용하여 비교 분석하였다. Swiss ball LSE군에서 BBS와 FRT는 유의하게 증가하였으며, MAS와 TUG는 유의하게 감소하였다. 또한 군간의 비교에서는 FRT와 MAS에서 유의한 차이가 나타났다. 결과적으로 swiss ball LSE는 뇌졸중 환자의 하지 근경직, 균형능력 및 보행능력을 회복시킬 수 있는 것으로 사료된다. This study examines the effects of spasticity, equilibrium and gait ability at lower extremity on lumbar stabilization exercise(LSE) with Swiss ball. This experiment was conducted to compare BBS, FRT, MAS and TUG by Swiss ball LSE with 34 stroke patients. equilibrium by BBS or FRT, spasticity by MAS and gait ability by TUG were measured after a 8-week traditional exercise physical therapy(17 subject of stroke patient) and a Swiss ball LSE(17 subject of stroke patient). These result lead us to the conclusion that BBS & FRT were statistically increased and MAS and TUG were decreased on Swiss ball LSE group. there were statistically differential effect between each group on FRT and MAS. These results suggest that Swiss ball LSE has the capability to improve spasticity, equilibrium and gait ability at lower extremity. Consequently, Swiss ball LSE would be lead to restoration of muscle spasticity, equilibrium and gait ability on stroke patients.