Table 1.
General characteristics of participants
| Characteristics | All (n = 1,061) | 55–64 years (n = 372) | 65–74 years (n = 466) | 75–84 years (n = 210) | 85–90 years (n = 13) |
|---|---|---|---|---|---|
| Age (years) | 68 (8) | 60 (3) | 69 (3) | 79 (3) | 87 (2) |
| Height (cm) | 151.2 (6.1) | 153.8 (5.4) | 151.0 (5.4) | 147.0 (5.9) | 143.7 (6.3) |
| Weight (kg) | 51.7 (7.5) | 53.3 (7.3) | 51.5 (7.3) | 49.4 (7.8) | 45.4 (6.6) |
| Body mass index (kg/m2) | 22.6 (2.9) | 22.5 (2.8) | 22.6 (2.8) | 22.9 (3.4) | 21.9 (2.6) |
| Speed of sound (m/s) | 1,489.7 (24.0) | 1,498.7 (25.0) | 1,489.0 (21.0) | 1,476.9 (21.9) | 1,464.9 (11.8) |
| Grip strength (kg) | 22.2 (4.7) | 24.4 (3.9) | 21.8 (4.5) | 18.8 (4.1) | 15.8 (3.7) |
| Single-leg balance with eyes closed (s) | 10.1 (14.1) | 16.8 (19.7) | 7.7 (8.7) | 4.2 (4.2) | 2.4 (2.6) |
| Single-leg balance without eyes closed (s) | 49.2 (35.5) | 71.4 (27.9) | 46.8 (34.3) | 17.6 (19.7) | 8.1 (14.2) |
| Maximum gait speed (m/min) | 104.2 (22.9) | 117.5 (17.2) | 103.9 (19.9) | 84.1 (19.2) | 55.9 (16.4) |
| Step length during maximum speed gait (cm) | 71.9 (12.0) | 77.4 (9.5) | 72.4 (10.8) | 62.8 (12.0) | 47.9 (11.7) |
| Usual gait speed (m/min) | 82.7 (18.3) | 91.5 (13.7) | 83.8 (17.1) | 66.7 (15.1) | 48.7 (15.0) |
| Step length during usual speed gait (cm) | 65.5 (10.7) | 70.2 (8.1) | 66.1 (10.2) | 56.8 (9.8) | 44.7 (11.9) |
| Weight bearing index | 0.73 (0.25) | 0.82 (0.24) | 0.73 (0.26) | 0.59 (0.19) | 0.43 (0.07) |
Values are given as the mean, with the standard deviation (SD) in parenthesis