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Associations of age (in years) with gait velocity (A), normalized velocity (B), stride velocity variability (C), stride time variability (D), and stride length variability (E) in single-task walking and in the dual-task conditions digits and button. CV, coefficient of variation. ∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001.
