Table 1.

Distribution of laryngeal muscle fiber types in the rabbit

Fiber type	Ta-X	Ta-V	PCA	CT
Slow	0.6 ± 0.4f	7.4 ± 2.7a	36.0 ± 1.7e	23.9 ± 3.1
Slow/2a	0	0	0.1 ± 0.1e	0.9 ± 0.2
Slow/2x	0	0.5 ± 0.5	0.1 ± 0.1	0
2a	0	1.6 ± 0.7b	21.6 ± 2.6f	34.2 ± 4.4
2a/2x	0	0	0.7 ± 0.2	0.5 ± 0.5
2x	0a	61.8 ± 4.1b	23.1 ± 3.2d	40.5 ± 1.3
2x/2b	0	1.0 ± 0.6c	18.5 ± 2.9c	0
2b	0	0.2 ± 0.2	0	0
2x/2b/eo	9.9 ± 2.1	5.2 ± 0.8c	0	0
2b/eo	89.5 ± 2.2a	3.3 ± 0.4b	0	0
eo	0b	19.0 ± 2.7b	0	0

Footnotes indicate statistical significance (^ap<0.0001; ^bp<0.0005; ^cp<0.001; ^dp<0.0025; ^ep<0.02; ^fp<0.05; t-test) compared with the value on the right.

Distribution of laryngeal muscle fiber types in the rabbit. The muscles are thyroarytenoid, external division (Ta-X), thyroarytenoid, vocalis division (Ta-V), posterior cricoarytenoid (PCA), and cricothyroid (CT) muscles. The fiber types are arranged in the order of increasing speed. Values are mean percentages ± SEM; n=4 for all muscles.