Combining transcranial direct current stimulation with a motor-cognitive task: the impact on dual-task walking costs in older adults

Table 1 Subject characteristics

	Mean ± SD	Range
Age (years)	73.9 ± 5.2	65.3–84.0
Gender (female/male)	20/5	–
Education (years)	15.3 ± 2.3	11–20
Body Mass Index (kg/m²)	26.6 ± 3.0	21.3–32.5
Montreal Cognitive Assessment (max 30)	26.6 ± 2.8	21–30
Single-task gait speed (cm/sec)^#	113.1 ± 20.9	60.4–159.9
Dual-task gait speed (cm/sec)^##	103.3 ± 22.7	50.3–146.9
Single-task stride time (ms)	1075 ± 91	880–1260
Single-task double support time (ms)	342 ± 75	230–820
Single-task step regularity (NU)	0.66 ± 0.11	0.39–0.82
Single-task stride time variability (%)	2.5 ± 0.9	1.1–3.65
Single-task swing time variability (%)	11.1 ± 16.8	1.94–56.7

^#All gait values reported based on the baseline value of the first tDCS session
^##Indicates a significant difference (p < 0.01) between the single-task and the dual-task gait speeds

ISSN: 1743-0003