Table 2. Spearman’s correlation coefficients for the electromyographic activities of the masticatory muscles and salivary cortisol according to degree of TMD severity.
| Rest | Isotonic contraction | Isometric contraction | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LM | LT | RM | RT | LM | LT | RM | RT | LM | LT | RM | RT | |
| Mild | −0.36 | −0.37 | −0.13 | −0.34 | −0.18 | −0.30 | −0.14 | −0.26 | −0.17 | −0.14 | −0.18 | −0.35 |
| Moderate | −0.01 | −0.07 | 0.33 | −0.03 | 0.25 | 0.33 | 0.15 | 0.18 | 0.09 | 0.08 | 0.14 | 0.24 |
| Severe | 0.67 | 0.57 | 0.17 | 0.03 | 0.35 | 0.61 | 0.42 | 0.61 | 0.71* | 0.67 | 0.64* | 0.46 |
*Statistically significant difference p < 0.05