Table 2 Values of the R2 variable before and after therapeutic ultrasound application at normal skin
From: Influence of therapeutic ultrasound on the biomechanical characteristics of the skin
Variable R2 | Number | Average | Standard deviation | Standard error |
|---|---|---|---|---|
Pre-intervention | 31 | 0.8419 | 0.0946 | 0.0170 |
Post-intervention | 31 | 0.8884* | 0.0624 | 0.0112 |
Difference | −0.0464 | 0.0675 | 0.0121 |