Table 1.
Descriptive statistics of the study sample (N = 55)
| Variable | M | SD | Range |
|---|---|---|---|
| Age (years) | 74.84 | 4.97 | 65–88 |
| Sex (% female) | 49.1 | ||
| Education (years) | 15.49 | 3.34 | 7–20 |
| Global Health Score | 1.36 | 1.08 | 0–4 |
| Body mass index | 27.50 | 6.40 | 18.40–49.90 |
| RBANS total score | 92.71 | 11.28 | 65–116 |
| STW velocity (cm/s)a | 72.46 | 15.43 | 44.18–112.38 |
| DTW velocity (cm/s)a | 62.53 | 13.55 | 36.51–88.19 |
| Correct letter generation rate | 0.59 | 0.19 | 0.02–0.98 |
| HbO2 STW (µM) | 0.29 | 0.94 | − 4.68 to 5.24 |
| HbO2 DTW (µM) | 0.90 | 1.25 | − 5.61 to 7.34 |
GHS Global Health Score, RBANS Repeatable Battery for the Assessment of Neuropsychological Status, STW single-task walk, DTW dual-task walk
aN = 53 for stride velocity measures