Table 2.
The demographic characteristics of the subjects.
| Attribute | Primary (N=131) | Final (N=157) | |
| Gender, n (%) | |||
|
|
Male | 45 (34.4) | 54 (34.4) |
|
|
Female | 86 (65.6) | 103 (65.6) |
| Age (years), mean (SD) | 70.37 (5.70) | 70.31 (5.56) | |
| Body mass index (kg/m2), mean (SD) | 25.25 (3.89) | 25.31 (3.74) | |
| Waist-to-hip ratio, mean (SD) | 0.91 (0.08) | 0.92 (0.08) | |
| Education, n (%) | |||
|
|
Junior and below | 38 (29.0) | 47 (29.9) |
|
|
Junior high | 41 (31.3) | 61 (38.9) |
|
|
Senior high and above | 44 (33.6) | 49 (31.2) |
|
|
Missing | 8 (6.1) | —a |
| Osteoarthritis, n (%) | |||
|
|
Negative | 78 (59.5) | 78 (49.7) |
|
|
Positive | 53 (40.5) | 79 (50.3) |
| Physical fitness test and unit, mean (SD) | |||
|
|
Single-leg stance balance test (eyes open, s) | 72.77 (81.84) | 70.30 (79.93) |
|
|
Body reaction time test (s) | 0.63 (0.17) | 0.64 (0.17) |
|
|
Modified sit and reach test (3 missing, cm) | 24.47 (9.47) | 24.55 (9.07) |
|
|
Leg extension power test (w) | 287.41 (258.30) | 289.62 (278.33) |
|
|
Timed Up and Go test (s) | 8.85 (2.02) | 8.91 (2.02) |
|
|
Anterior Star Excursion Balance Testb | 0.77 (0.11) | 0.76 (0.11) |
|
|
Anterolateral Star Excursion Balance Testb | 0.83 (0.10) | 0.83 (0.10) |
|
|
Lateral Star Excursion Balance Testb | 0.81 (0.13) | 0.81 (0.13) |
|
|
Posterolateral Star Excursion Balance Testb | 0.77 (0.15) | 0.77 (0.15) |
|
|
Posterior Star Excursion Balance Testb | 0.67 (0.18) | 0.66 (0.17) |
|
|
Posteromedial Star Excursion Balance Testb | 0.61 (0.17) | 0.61 (0.17) |
|
|
Medial Star Excursion Balance Testb | 0.50 (0.16) | 0.50 (0.15) |
|
|
Anteromedial Star Excursion Balance Testb | 0.68 (0.11) | 0.69 (0.11) |
aData not available.
bThe measured value for the Star Excursion Balance Test has been normalized (without unit).