between the results of single-task and dualtask exercises
Although the OLB time improvements from baseline to
each of the two post-program evaluations were greater in the
dual-task group, the differences were not statistically signifiTable 3
Results (mean ± S.D.) of the TUG with and without concurrent cognitive activity in the single-task and dual-task groups. Comparisons were baseline vs. 2-week
post-program (N = 55), 2-week vs. 3-month post-program (N = 38), and baseline vs. 3-month post-program (N = 39). P values are given
Baseline vs. end of program End of program vs. 3 months Baseline vs. 3 month
No cognitive tasks Single-task group 1.63 ± 2.39 3.17 ± 6.44 4.38 ± 6.02
Dual-task group 0.43 ± 1.89 1.26 ± 1.89 2.32 ± 1.85
(P = 0.05) (P = 0.11) (P = 0.07)
Concurrent cognitive tasks Single-task group 3.97 ± 5.62 1.92 ± 3.00 7.28 ± 7.41
Dual-task group 1.12 ± 3.19 5.02 ± 6.37 4.08 ± 3.08
(P = 0.03) (P = 0.02) (P = 0.03)
J. Vaillant et al. / Joint Bone Spine 73 (2006) 414–418 417