Table 1.
Baseline muscle fiber type composition of the m. pectoralis, the m. vastus lateralis, and the m. semitendinosus.
| Muscle fiber types (%) | ||||
|---|---|---|---|---|
| Muscles | Type I (%) | Type IIA (%) | Type IIAX (%) | Type IIX (%) |
| m. pectoralis | 24.7 (21.1–37.5)* | 52.8 (39.3–68.8) | 6.9 (1.4–12.5) | 16.6 (2.1–28.8)* |
| m. vastus lateralis | 20.4 (3.5–30.2)* | 54.9 (42.4–66.3) | 8.4 (2.1–14.4) | 17.5 (4.7–33.2)* |
| m. semitendinosus | 13.6 (0.3–30.4) | 46.7 (24.7–71.1) | 5.4 (0.8–18.7) | 34.5 (21.2–62.4) |
Significantly different from the m. semitendinosus, p < 0.017.
Percentages of type I, type IIA, type IIAX, and type IIX are given as median (minimum–maximum).