Table 2 Physical performance results in the osteoarthritic and control groups are presented as the means±standard deviations and medians and interquartile ranges in parentheses
Osteoarthritic group (N = 30) | Control group (N = 30) | Difference % | Cohen’s’ d | 95% CI of effect size | ap value | |
|---|---|---|---|---|---|---|
40-m fast-paced walking (seconds) | 32.5 ± 12.0 (30.5, 7.2) | 24.6 ± 3.0 (24.0, 4.3) | 27.7% | −0.90 | − 1.43 ~ − 0.37 | < 0.001 |
9-step stair-climbing test (seconds) | 24.1 ± 12.8 (21.1, 9.3) | 13.3 ± 1.9 (13.3, 2.4) | 57.2% | −1.17 | −1.72 ~ −0.62 | < 0.001 |
30s chair-stand test (counts) | 10.6 ± 3.5 (9.8, 6.0) | 14.7 ± 5.2 (13.0, 4.6) | −31.7% | 0.90 | 0.37 ~ 1.43 | < 0.001 |
6-minute walking test (meters) | 392.8 ± 73.0 (388.3, 74.9) | 470.1 ± 45.0 (467.5, 47.6) | −17.5% | 1.23 | 0.68 ~ 1.78 | < 0.001 |
Timed up and go (seconds) | 10.8 ± 3.5 (10.5, 2.8) | 7.3 ± 0.9 (7.2, 1.6)) | 38.4% | −1.36 | −1.92 ~ −0.80 | < 0.001 |