Table 2.
Spearman Rho correlation coefficients between potential covariates and both voluntary activation (CARIE) and strength of the quadriceps (MVICIE & MVIC3mos)
| CARIE | MVICIE | MVIC3mos | |
|---|---|---|---|
| Sex | 0.115 | −0.206 | −0.490 |
| p= | 0.120 | 0.005 | <0.001 |
| Age | 0.216 | 0.001 | −0.107 |
| p= | 0.003 | 0.988 | 0.146 |
| BMI | −0.028 | −0.004 | 0.075 |
| p= | 0.708 | 0.951 | 0.309 |
| Group | −0.042 | 0.030 | −0.031 |
| p= | 0.565 | 0.681 | 0.672 |
| PainMVIC | −0.329 | −0.075 | 0.099 |
| p= | <0.001 | 0.310 | 0.177 |
| CARIE | ‐ | 0.555 | 0.214 |
| p= | ‐ | <0.001 | 0.003 |
MVIC= Maximal Voluntary Isometric Contraction
CAR= Central Activation Ratio
PainMVIC was the pain felt during the MVIC at IE.