Table 2.
Dual-task type and HbO data extraction.
| Study name | Type of dual task | Representative area | ST | DT | Unit | N | ||
|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | |||||
| Al-Yahya et al. (2016) | ①SS7 | Average L and R | 0.69 | 0.96 | 1.02 | 1.22 | μmol/L | 19 |
| Chatterjee et al. (2019) | ①SS7 | Average L and R | 0.26 | 0.52 | 0.92 | 0.98 | μmol/L | 33 |
| Clark et al. (2021) | ①SS7 ②Obstacles |
Average L and R | 0.34 | 0.89 | 0.84 0.8 |
0.95 1 |
μmol/L | 38 38 |
| Hawkins et al. (2018) | ①Verbal ②Obstacles |
Average L and R | 0.2 | 0.58 | 0.68 0.72 |
0.98 0.59 |
μmol/L | 24 24 |
| Hermand et al. (2019) | ①1-back ②2-back |
Average L and R | 2.42 | 1.93 | 2 2.69 |
2.24 2.22 |
μmol/L | 11 11 |
| Hermand et al. (2020) | ②2-back | Affected | NR | NR | NR | NR | μmol/L | 21 |
| ②2-back | Un-affected | 1.04 | 1.02 | 1.49 | 1.65 | μmol/L | 21 | |
| Collett et al. (2021) | ①Stroop ②Planning |
Affected | 0.67 | 0.26 | 0.33 0.42 |
0.38 0.36 |
mmol/L | 15 15 |
| ①Stroop ②Planning |
Unaffected | 0.64 | 0.3 | 0.49 0.34 |
0.32 0.39 |
mmol/L | 13 13 |
|
| Lim et al. (2022) | ①Easy verbal ②Hard verbal |
Affected | 0.14 | 0.33 | 0.24 0.25 |
0.31 0.33 |
μmol/L | 20 20 |
| ①Easy verbal ②Hard verbal |
Unaffected | 0.06 | 0.29 | 0.21 0.18 |
0.3 0.29 |
μmol/L | 20 20 |
|
| Mori et al. (2018) | ②SS3 | Average L and R | −0.3 | 1.73 | −0.073 | 0.41 | AU | 14 |
ST, single-task; DT, dual-task; N, the size of sample; SD, standard deviation; SS7, serial-7 subtraction during walking; Obstacles, walking across obstacles; Stroop, auditory stroop task whilst walking; Planning, picture-planning whilst walking; SS3, serial-3 subtraction during walking; NR, not reported; L, left hemisphere; R, right hemisphere; affected, affected hemisphere; unaffected, unaffected hemisphere.