Objective: To compare the effects of core the strengthening versus lower limb proprioceptive neuromuscular facilitation (PNF) techniques on trunk function and balance in chronic stroke patients.

Methods: The randomized controlled trial (RCT) took place at Itiefaq hospital & Riphah Rehabilitation Centre, Lahore, Pakistan. Participants consisted of individuals of both sexes aged between 40 and 70 who were suffering from chronic stroke (6 months to 2 years). Two groups were randomly assigned; Group A received a combination of core strengthening exercises with conventional treatment, while Group B underwent PNF therapy alongside conventional treatment. Outcome measures were evaluated using the Trunk Impairment Scale (TIS) and Berg Balance Scale (BBS).

Results:  Out of 42 patients, there were 21 patients in each of the two groups. Between each group, scores for BBS and TIS showed statistically significant results, as evidenced by a p-value of <0.05. Within-group analysis revealed significant findings across all parameters. In contrast, the comparison between groups showed insignificant results for the TIS, as the p-value exceed 0.05. Between group results were significant in case of Berg Balance Scale (p<0.05).

Conclusion: The research concluded that applying core strengthening exercises and lower limb proprioceptive neuromuscular facilitation techniques enhanced the balance and trunk function in individuals with the chronic stroke.

Keywords: Stroke, Core strengthening exercises, Proprioceptive Neuromuscular Facilitation, Berg Balance Scale, Trunk Impairment Scale.