Table 3.
Results of linear mixed model analysis comparing field tests
| β (CI) | p-value | |
|---|---|---|
| Intercept | 105.83 (101.04; 110.62) | p < 0.001 |
| Age | -0.81 (-0.97; -0.66) | p < 0.001 |
| Age 60+ | -0.94 (-1.35; -0.53) | p < 0.001 |
| Test | ||
| HGS | -5.45 (-10.83; -0.07) | 0.047 |
| CMJ | -0.31 (-5.69; 5.08) | 0.911 |
| STSP | -1.73 (-7.11; 3.66) | 0.530 |
| MGS | -5.66 (-11.05; -0.28) | 0.039 |
| TUG | -2.20 (-7.58; 3.66) | 0.424 |
| Age-by-test | ||
| HGS | 0.64 (0.47; 0.81) | p < 0.001 |
| CMJ | 0.12 (-0.06; 0.29) | 0.185 |
| STSP | 0.41 (0.24; 0.58) | p < 0.001 |
| MGS | 0.69 (0.52; 0.86) | p < 0.001 |
| TUG | 0.52 (0.35; 0.69) | p < 0.001 |
| Age 60+-by-test | ||
| HGS | 0.38 (-0.08; 0.84) | 0.105 |
| CMJ | 0.03 (-0.43; 0.49) | 0.895 |
| STSP | 0.50 (0.05; 0.96) | 0.031 |
| MGS | 0.11 (-0.35; 0.57) | 0.640 |
| TUG | 0.12 (-0.33; 0.58) | 0.598 |
HGS = handgrip strength; CMJ = countermovement jump; STSP = sit-to-stand power; SCP = stair-climbing power; MGS = maximal gait speed; TUG = timed-up-and-go; β = regression coefficient; CI = confidence interval; Age = age (years); Age 60 + = age (years) – 60 (for age >60) or 0 (for age ≤60)