Effect of an Aquatic Balance-Training Program in Patients with Chronic Stroke: A Single-Group Experimental Pilot Study

Background and Objectives: Stroke survivors face severe problems affecting their mobility, such as balance impairments and an increased risk of falls. The principal aim of this study was to quantify the effects of 12 sessions of Halliwick aquatic therapy for the treatment of balance in patients with chronic stroke. Materials and Methods: Twenty-nine people with stroke participated in this single-group experimental pilot study. Sessions were performed three times a week for a total of 12 sessions. A stabilometric assessment was conducted using a computerized platform. The evaluations were performed at baseline, at four weeks, and one month after completing the aquatic program. Results: The results obtained revealed significant differences for postural stability values (p < 0.001) and single-leg stabilometry. However, in the case of values within the limits of stability, such as forward (F = 0.339, p = 0.676), backward (F = 0.449, p = 0.644), forward right oscillations (F = 1.637, p = 0.21), and the anterior/posterior instability index (F = 0.614, p = 0.55), no significant differences were found. Conclusions: These findings suggest that Halliwick therapy may potentially improve stroke balance impairments. The main limitations of the study were the sample size, the lack of a control group, and the study not being blind.