摘要：Purpose: Although proxim.l stability of the trunk is a prerequisite for balance and gait, to determ.ne the role of trunk rehabilitation on trunk control, balance and gait in patients with chronic stroke is yet unknown. m.thod: Fifteen sub-jects (post-stroke duration (3.53 ± 2.98) years) who had the ability to walk 10 m.ters independently with or without a walking aid;scoring ≤ 21 on Trunk Im.airm.nt Scale (TIS), participated in a selective trunk m.scle exercise regim., consisting of 45 m.nutes training per day, four days a week, and for four weeks duration in an outpatient stroke reha-bilitation centre. Results: The overall effect size index for trunk rehabilitation was 1.07. This study showed large effect size index for Trunk Im.airm.nt Scale (1.75), Berg Balance Scale (1.65) than for gait variables (0.65). After trunk rehabilitation, there was a significant im.rovem.nt for gait speed (p= 0.015), cadence (p= 0.001) and gait sym.etry (p=0.019) in patients with chronic stroke. In addition, all the spatial gait param.ters had a significant change post-intervention. There was no significant change in tem.oral gait param.ters with the exception of affected single lim. support tim.. The level of significance was set at p < 0.05. Conclusion: The exercises consisted of selective trunk m.vem.nt of the upper and the lower part of trunk had shown larger effect size index for trunk control and balance than for gait in patients with chronic stroke. Future random.zed controlled studies incorporating large sam.le size would provide insight into the effectiveness and clinical relevance of this intervention.