Visual dependence, postural stability during repeated unilateral standing tasks, and quality of life in adults with chronic low back pain

Postural control during unilateral stance is modulated by visual input, task repetition, and spatial constraint. The LBP group demonstrated constrained sway excursion and reduced adaptability, which are reflected in diminished improvements in time-in-boundary across trials, particularly under eyes-closed conditions at wider sway thresholds. These limitations were relevant with lower physical functioning.