Table 3. Correct response rate (number of words or digits per second) across all testing conditions in session one [Mean (SD), N = 88].

Walking task	Single-task Condition						Dual-task Condition
	All participants (N = 88)		Fallers (N = 20)		Non-fallers (N = 68)		All participants (N = 88)			Fallers (N = 20)			Non-fallers (N = 68)
	VF	SS	VF	SS	VF	SS	VF	SS	MTa	VF	SS	MTa	VF	SS	MTa
Comfortable Speed	0.47b (0.16)	0.41 (0.19)	0.42 (0.13)	0.33 (0.14)	0.48 (0.17)	0.44 (0.20)	0.47 (0.18)	0.39 (0.18)	9	0.48 (0.16)	0.33 (0.15)	2	0.47 (0.19)	0.41 (0.18)	7
Maximal Speed	0.57 (0.25)	0.43 (0.20)	0.51 (0.25)	0.34 (0.14)	0.59 (0.25)	0.45 (0.21)	0.55 (0.22)	0.42 (0.19)	11	0.47 (0.20)	0.37 (0.20)	2	0.58 (0.22)	0.44 (0.19)	9
Backward Walking	0.16 (0.25)	0.37 (0.16)	0.11 (0.15)	0.33 (0.11)	0.17 (0.27)	0.39 (0.17)	0.26 (0.14)	0.31 (0.17)	—	0.26 (0.12)	0.26 (0.13)	—	0.26 (0.15)	0.32 (0.18)	—
Obstacle Course	0.47 (0.20)	0.40 (0.18)	0.46 (0.20)	0.33 (0.13)	0.47 (0.20)	0.42 (0.20)	0.37 (0.17)	0.35 (0.16)	24	0.36 (0.13)	0.33 (0.14)	2	0.37 (0.18)	0.35 (0.17)	22
TUG	0.40 (0.19)	0.40 (0.18)	0.37 (0.17)	0.32 (0.13)	0.41 (0.19)	0.42 (0.19)	0.34 (0.14)	0.28 (0.16)	8	0.30 (0.15)	0.25 (0.15)	1	0.35 (0.14)	0.29 (0.16)	7

^a: Number of participants who spilled the water while performing the manual task.

^b: The CRR value is 0.47, it means that there was an average of 0.47 correct responses per second when the participants were asked to walk at a comfortable speed while performing the verbal fluency task simultaneously.

MT: manual task; SD: standard deviation; SS: serial 3 subtraction; TUG: timed up-and-go test; VF: verbal fluency.