Table 4. Adapted compendium of physical activities included MET values for exoskeleton-assisted walking overground.
| Activity | Group | N | V̇O2, mL/kg/min | METssci |
| Exoskeleton-assisted treadmill walking (41% BWS; 100% GF)31 | Motor-incomplete SCI | 7 | 5.7 | 1.62 |
| OG walking (slow <0.89 m/s)4 | Noninjured adults | 51 | 7.0 | 2.00* |
| Wheelchair propulsion outside20 | T1-T8 | 14 | 8.0 ± 1.7 | 2.97 |
| Weight training20 | T1-T8 | 14 | 8.1 ± 2.4 | 2.99 |
| Exoskeleton (Indego) walking OG (walk-1 = 0.18 m/s) | T6-T12 | 5 | 9.5 ± 0.8 | 3.50 |
| Dressing/undressing20 | T9-L4 | 2 | 10.8 ±1.8 | 3.99 |
| Exoskeleton (Indego) walking OG (walk-2 = 0.27 m/s) | T6-T12 | 5 | 11.5 ± 1.4 | 4.26 |
| Wheelchair propulsion on grass20 | T1-T8 | 3 | 13.4 ± 1.6 | 4.96 |
| Seated arm cycle ergometer (80 W)20 | T1-T8 | 4 | 14.4 ± 4.2 | 5.34 |
| Wheelchair basketball20 | T1-T8 | 2 | 20.91 ± 5.53 | 7.74 |
Note:BWS = body weight support; GF = guidance force; METssci = metabolic equivalent of tasks for persons with spinal cord injury; OG = overground; V̇O2 = oxygen consumption; W = Watts.
*
MET for noninjured adults equals 3.5 mL/kg/min.