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Table 2 Results of dual-task walking tests across intervention groups and time points

From: Effects of simultaneous cognitive and aerobic exercise training on dual-task walking performance in healthy older adults: results from a pilot randomized controlled trial

 EXCOGEXCOGCON 
baseline6-week12-weekbaseline6-week12-weekbaseline6-week12-weekbaseline6-week12-weekp-val
Cognitive performance
 n201612191717211410141312 
 number correct, mean (SD)17.8 (6.83)21.62 (9.69)26.5 (8.48)19.58 (13.55)21.7 (13.83)21.94 (13.64)16.82 (6.71)20.5 (7.78)21.8 (8.52)14.79 (9.49)14.46 (9.4)17.58 (10.15)0.039
Gait variables (Dual-task cost, %)
 n151191211111897121110 
 Stride Length−4.36 (2.8)−1.87 (3.02)−2.35 (1.33)−4.26 (2.78)− 1.87 (4.54)− 1.85 (2.14)−5.67 (2.27)−3.96 (3.91)−3.23 (1.35)−5.37 (5.21)−5.07 (3.38)− 4.73 (4.59)0.790
 Stride Length Variability0.16 (0.4)−0.02 (0.09)0.02 (0.2)0.09 (0.29)−0.07 (0.32)−0.06 (0.19)0.19 (0.26)0 (0.22)0.1 (0.39)0.1 (0.31)0.08 (0.16)0.06 (0.3)0.891
 Stride Duration4.94 (6.54)5.35 (7.35)5.14 (7.5)8.74 (5.89)7.89 (6.63)3.83 (4.75)8.42 (10.32)3.88 (3.1)2.4 (3.22)10.48 (13.32)7.48 (9.09)6.93 (8.98)0.773
 Stride Duration Variability45 (68.97)34.32 (72.94)8.57 (30.82)43.28 (45.6)27.16 (54.45)19.12 (25.56)40.50 (31.99)4.68 (18.14)35.92 (49.66)40 (46.4)40.29 (48.2)37.55 (44.38)0.439
 Stride Velocity−8.45 (6.86)−6.36 (7.39)−6.73 (6.6)−11.6 (5.75)−8.36 (6.95)−5.25 (4.62)− 12.3 (6.91)−7.42 (5.67)− 5.61 (3.48)−12.86 (12.89)− 10.8 (9.94)−10.06 (10.69)0.925
 Stride Velocity Variability17.91 (21.46)5.53 (17.77)0.58 (20.09)17.96 (34.44)1.17 (32.26)0.65 (15.74)22.92 (22.23)4.9 (21.78)4.52 (18.27)15.82 (33.94)14.47 (19.1)13.94 (23.05)0.739
  1. Note: Data presented are mean (SD); variability is the coefficient of variation for a given variable. Number correct were determined during the dual-task condition only. Gait variables are the dual task cost calculated from both dual and single task trials (see text for further explanation). P-values are the interaction of group and time point for each variable from linear mixed effects models
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