Table 1.
Participant data. For the activity metric calculations, each participant's durations for a mode were calculated. The duration for a mode was defined as the participant's mean duration of the activity across all days in the mode.
| Demographic characteristic | Median | Range |
|---|---|---|
| Age (y) | 58 | 35–78 |
| Time since amputation (y) | 17 | 4–47 |
| Body mass index (BMI*) (kg/m2) | 26.7 | 21.2–39.2 |
| Socket volume—mid-patellar-tendon to distal end (mL) | 1332 | 805–1728 |
| Residual limb length (cm) | 15.9 | 9.0–19.0 |
| Residual limb circumference (cm) | 29.8 | 22.2–35.1 |
| Activity metric | Low | High |
|---|---|---|
| Prosthesis day duration (h/day) | 2.1 | 17.5 |
| Time conducting walking bouts of 5 or more steps (h/day) | 0.1 | 1.5 |
| Doff time (h/day) | 0.0 | 7.3 |
| Step count (steps/day) | 107 | 3360 |
| Time wearing the prosthesis but not conducting walking bouts of > 5 steps (% of prosthesis day) | 34.8 | 98.8 |
*Amputee Coalition. About body mass index (BMI), 2016, Washington, DC: Amputee Coalition. https://www.amputee-coalition.org/limb-loss-resource-center/resources-filtered/resources-by-topic/healthy-living/about-bmi/. Amputee Coalition, Washington, DC. Accessed April 7, 2022.