Table 3.
Correlation analysis of tidal volume according to general characteristics.
| Variables | Mean tidal volume (mL) | |||
|---|---|---|---|---|
| 0 g | 100 g | 200 g | 300 g | |
| r (p) | r (p) | r (p) | r (p) | |
| Sex1) | − 0.08 (0.482) | − 0.08 (0.505) | − 0.06 (0.603) | − 0.22 (0.061) |
| Grade2) | − 0.08 (0.493) | 0.03 (0.773) | − 0.15 (0.212) | − 0.04 (0.722) |
| Height | 0.25 (0.031) | 0.15 (0.195) | 0.18 (0.134) | 0.32 (0.005) |
| Weight | 0.18 (0.138) | 0.20 (0.086) | 0.12 (0.322) | 0.14 (0.232) |
| Pinch strength | ||||
| Tip | 0.05 (0.683) | 0.22 (0.066) | 0.18 (0.130) | 0.13 (0.294) |
| Key | 0.14 (0.225) | 0.05 (0.681) | 0.03 (0.816) | 0.11 (0.370) |
| Tripod | 0.36 (0.002) | 0.18 (0.125) | 0.25 (0.032) | 0.35 (0.003) |
| Handgrip strength | 0.17 (0.156) | 0.15 (0.212) | 0.16 (0.183) | 0.28 (0.016) |
Date are expressed as Pearson’s correlation coefficient.
Significant values are in [underline].