Table 2.
Study baseline measures.
| Baseline outcomesa | HIIT (n = 65) | MCT (n = 63) | Total (n = 128) | p-valueb |
|---|---|---|---|---|
| Cognition, z score | ||||
| GCF | 0.004 (0.553) | −0.004 (0.594) | 0 (0.571) | 0.94 |
| Memory | −0.03 (0.609) | 0.031 (0.695) | 0 (0.651) | 0.60 |
| Concentration | −0.01 (0.745) | 0.01 (0.752) | 0 (0.746) | 0.88 |
| Planning | 0.031 (0.791) | −0.032 (0.839) | 0 (0.812) | 0.66 |
| Reasoning | 0.023 (0.668) | −0.024 (0.739) | 0 (0.702) | 0.71 |
| Blood pressure, mm Hg | ||||
| Systolic | 129.8 (16.0) | 128.8 (16.0) | 129.3 (15.9) | 0.73 |
| Diastolic | 73.3 (8.3) | 72.8 (8.7) | 73.1 (8.5) | 0.75 |
| Trail-Making Test, s, median (IQR) | ||||
| Part A | 36.0 (28.0, 44.0) | 32.0 (28.0, 41.7) | 34.5 (28.0, 43.0) | 0.39 |
| Part B | 65.0 (49.0, 94.5) | 68.0 (49.0, 92.0) | 65.2 (49.0, 92.75) | 0.81 |
| Cardiorespiratory fitnessc | ||||
| Time to exhaustion, min | 7.0 (2.3) | 6.9 (2.2) | 6.9 (2.2) | 0.93 |
| Maximum intensity, METs | 8.6 (2.4) | 8.6 (2.2) | 8.6 (2.3) | 0.97 |
| Maximum heart rate, bpm | 144.2 (18.4) | 144.9 (18.8) | 144.5 (18.5) | 0.85 |
a
Data presented as mean (standard deviation) unless otherwise indicated.
b
Significance for independent samples t-test for continuous variables.
c
Exercise stress test data available from 118 (HIIT = 62, MCT = 56). HIIT, high-intensity interval training; MCT, moderate-intensity continuous training; GCF, global cognitive functioning; IQR, interquartile range; METs, metabolic equivalent.