When the lower extremities are activated, ankle joint neuromuscular function is important, and sway is related to postural changes because it provides important information on safety and postural control18). In comparisons of balance ability in each group, all three groups showed significant changes over time; in other comparisons among the groups, the ankle strategy exercise group showed differences in BBS and TUG scores compared with the balance exercise group and the control group after six weeks. Forestier et al.19) indicated that when ankle muscles were evaluated on diverse (stable, unstable-specific, unspecific-unstable) basal planes, muscle activity was highest on unstable surfaces. Mun et al.20) reported that stimulation of the ankle dorsiflexor muscle resulted in improved walking speed and stride length. Park et al.13) reported that after participation in an ankle proprioceptive training program, the TUG score significantly improved from 20.47 sec at 0 weeks to 17.9 sec at 4weeks and 15.27 sec at 6weeks and that dynamic balance ability was improved because of the improved ankle position senses resulting from proprioceptive control. They also reported that stride length and walking speed increased as a result of improvements in proprioceptive sense because foot drop was prevented during the swing phase and lower extremity stability was provided at initial contact and that stable gait patterns could lead to improved static-dynamic stability as postural sway decreases. Lee et al.21) advised that when BBS scores are higher, stride lengths are longer, leading to decreases in TUG time. However, in the present study, the ankle strategy exercise group did not differ significantly from the other groups in the FRT, but showed increases in moving distances over time. Therefore, the ankles trategy exercise group should have been provided with joint stability as a result of the strengthening of ankle joint muscles, and this should affect balance. The present study revealed that ankle strategy exercise reduced COP moving distances and helped to improve balance. Therefore, ankle strategy exercise is considered a more efficient treatment for ankle stability and balance ability in stroke patients. Future studies should check functional elements such as gaits.