Table 4. Changes in skin moisture after RF, EA or LLLT and comparison of skin moisture improvements between groups.
| Moisture content | Intervention | Pre | Post |
|---|---|---|---|
| aForehead | RF* | 35.3 ± 2.5 | 37.1 ± 3.0 |
| EA* | 33.7 ± 3.8 | 38.7 ± 3.2 | |
| LLLT | 32.9 ± 4.8 | 36.9 ± 4.9 | |
| aCheek2<1 | RF* | 36.3 ± 2.9 | 38.9 ± 2.5 |
| EA* | 33.7 ± 3.6 | 41.5 ± 3.5 | |
| LLLT* | 34.5 ± 2.9 | 39.9 ± 3.3 |
Values are shown as the mean ± standard deviation, *Significant difference between the pre- and post-tests within each group, p<0.05. aPaired Samples T-test; bWilcoxon Rank-Sum test; LLLT: low-level laser therapy; EA: electroacupuncture; RF: radiofrequency; 1: RF; 2: EA; 3: LLLT