Table 2.
Mean (SD) demographics for control, injured and OA groups.
| Variable | Control (n = 84) | U-I (n = 41) | B-I (n = 10) | U-OA (n = 31) | B-OA (n = 10) |
|---|---|---|---|---|---|
| Sex (male/female) | 39/45 | 26/15 | 6/4 | 17/14 | 5/5 |
| Age (years) | 44.8 (16.5) | 44.5 (15.8) | 46.3 (15.5) | 56.8 (10.5) | 59.8 (13.8) |
| Height (cm) | 170.74 (10.28) | 173.85 (9.29) | 174.18 (8.66) | 169.66 (11.43) | 170.82 (13.13) |
| Mass (kg) | 68.32 (12.38) | 71.85(11.4) | 73.93 (12.17) | 75.73 (12.00) | 80.46 (23.60) |
| BMI (kg/m2) | 23.3 (3.1) | 23.7 (2.4) | 24.1 (3.2) | 26.3 (3.4) | 27.0 (4.4) |
| Injury occurrence (years prior to testing)a | – | 9 (13) | 22 (17) | – | – |
| OA diagnosis (years prior to testing)a | – | – | – | 3 (5) | 2 (2) |
| K-L grade | – | – | – | 3 (1) | 3 (1) |
| Gait velocity (m/s) | 1.25 (0.19) | 1.19 (0.19)b | 1.23 (0.19) | 1.13 (0.21)b | 1.11 (0.17)b |
BMI = Body mass index, K/L grade = Kellgren-Lawrence grading scale (0–4).
a
Mean injury occurrence and OA diagnosis (U-I, U-OA) calculated from randomised subject selection (N = 10, N = 10) to match B-I and B-OA subject data.
b
Indicates significant difference in gait velocity compared to control.