Research Article

Physical Activity Improves Verbal and Spatial Memory in Older Adults with Probable Mild Cognitive Impairment: A 6-Month Randomized Controlled Trial

Table 3

Mean values (SDs) for spatial memory performance.

Variable BaselineMidpointFinal
Mean (SD) Mean (SD) Mean (SD)

RT

Reaction time, ms
 One item981.02 (141.18)941.05 (167.40)952.57 (193.75)
 Two items1036.40 (176.36)997.00 (196.59)948.09 (219.19)
 Three items1092.71 (148.86)1072.64 (189.75)1006.69 (189.75)
Accuracya
 One item0.76 (0.17)0.82 (0.14)0.74 (0.17)
 Two items0.81 (0.16)0.81 (0.13)0.75 (0.19)
 Three items0.72 (0.15)0.78 (0.13)0.73 (0.17)
Choice reaction time, ms895.26 (158.07)880.42 (149.10)889.41 (163.19)

AT

Reaction time, ms
 One item958.77 (161.91)927.12 (179.21)896.51 (172.92)
 Two items1013.56 (198.95)982.32 (146.48)951.22 (165.06)
 Three items1093.65 (186.34)1039.24 (172.98)1002.91 (195.64)
Accuracy
 One item0.73 (0.11)0.79 (0.13)0.77 (0.12)
 Two items0.75 (0.15)0.84 (0.10)0.84 (0.09)
 Three items0.71 (0.11)0.78 (0.10)0.74 (0.09)
Choice reaction time, ms877.82 (128.62)894.49 (130.15)910.08 (164.62)

BAT

Reaction time, ms
 One item993.26 (155.19)968.55 (179.74)952.00 (178.40)
 Two items1070.66 (210.78)1010.36 (198.28)1007.27 (187.55)
 Three items1084.62 (215.32)1061.94 (190.76)1077.48 (223.07)
Accuracy
 One item0.73 (0.14)0.74 (0.14)0.79 (0.12)
 Two items0.76 (0.13)0.76 (0.15)0.79 (0.12)
 Three items0.71 (0.14)0.68 (0.15)0.74 (0.10)
Choice reaction time, ms864.91 (111.95)885.06 (169.32)838.30 (101.36)

Abbreviations: BAT: balance and tone; AT: aerobic training; RT: resistance training.
Maximum was 1.00.