Table 1.

Mean minimal fiber diameter, mean fiber cross-sectional area, and numerical proportion of slow-twitch, fast-twitch, and hybrid fibers of the right and left side of costal diaphragm.

Parameter	R slow	L slow	R fast	L fast	R hybrid	L hybrid
Diameter [µm]	48.1 ± 2.3	45.8 ± 1.4	46.3 ± 2.1	45.4 ± 1.2	50.8 ± 2.6	46.0 ± 2.7
CSA [µm2]	2502.6 ± 225.8	2248.7 ± 146.9	2321.3 ± 182.7	2225.5 ± 130.6	2891.5 ± 227.6∗	2314.9 ± 193.8∗
Numerical proportion [%]	51.3 ± 2.9	49.3 ± 1.3	47.2 ± 2.8	49.2 ± 1.1	1.5 ± 0.4∗∗	1.5 ± 0.4∗∗

Values are means ± SE. CSA = cross-sectional area; R = right side of costal diaphragm; L = left side of costal diaphragm; slow = slow-twitch fibers; fast = fast-twitch fibers; hybrid = hybrid fibers; N = 9 (p > 0.05 in all, ^∗ p minimal = 0.180, and ^∗∗ p maximal = 0.974).