Table 2. Asymmetry and Horizontal Extent of Skin Displacement during Frontalis Contraction (n=30).
| Value | ||
|---|---|---|
| Dominant moving side | ||
| Right dominance | 16 (53.4) | |
| Left dominance | 10 (33.3) | |
| No dominance on either side | 4 (13.3) | |
| Horizontal extent of skin displacement | ||
| Glabella and whole eyebrow | 20 (66.6) | |
| Glabella and medial 2/3 of eyebrow | 5 (16.7) | |
| Medial 2/3 of eyebrow | 1 (3.3) | |
| Whole eyebrow | 2 (6.7) | |
| Lateral 2/3 of eyebrow | 2 (6.7) | |
| Maximal skin displacement | ||
| Glabella | 1 (3.3) | |
| Glabella and medial 1/3 of eyebrow | 1 (3.3) | |
| Glabella and medial 2/3 of eyebrow | 2 (6.7) | |
| Medial 2/3 of eyebrow | 9 (30.0) | |
| Medial 1/3 of eyebrow | 2 (6.7) | |
| Middle 1/3 of eyebrow | 2 (6.7) | |
| Lateral 1/3 of eyebrow | 5 (16.7) | |
| Lateral 2/3 of eyebrow | 7 (23.3) | |
| Whole eyebrow | 1 (3.3) | |
Data are presented as n (%).