Table 6. Correlation coefficients and 95% confidence intervals for knee muscle strength assessments obtained by hand-held (HHD) and isokinetic dynamometers (Con-Trex).
| Con-Trex | |||||
|---|---|---|---|---|---|
| Eccentric | Isometric | Concentric | Concentric | ||
| 60°/sec | 0°/sec | 60°/sec | 180°/sec | ||
| HHD | |||||
| Extensors D | r=0.87 | r=0.85 | r=0.87 | r=0.85 | |
| (0.75–0.94) | (0.70 – 0.92) | (0.73–0.93) | (0.71–0.93) | ||
| Extensors ND | r=0.84* | r=0.87 | r=0.86 | r=0.87 | |
| (0.69–0.92) | (0.74–0.94) | (0.72–0.93) | (0.74–0.94) | ||
| Flexors D | r=0.80* | r=0.75 | r=0.81 | r=0.85 | |
| (0.62–0.90) | (0.53–0.87) | (0.63–0.91) | (0.70–0.93) | ||
| Flexors ND | r=0.75* | r=0.72* | r=0.83* | r=0.82 | |
| (0.53–0.87) | (0.48–0.86) | (0.67–0.92) | (0.66–0.91) | ||
*Spearman correlation coefficient; D: dominant side; ND: non-dominant side. All coefficients of correlation are significant (p<0.01).