Myosin Isoforms and Contractile Properties of Single Fibers of Human Latissimus Dorsi Muscle

Table 2

Comparison between present paper and data from previous study performed on vastus lateralis fibers dissected from muscle biopsy samples in the pretrekking conditions from the 7 subjects described in the paper of Doria et al. 2011 [31]. CSA: cross sectional area in μm². 𝐹₀ isometric force in mN. 𝑃₀ isometric tension in mN/mm².

Fiber type	CSA μm^2 (mean ± SEM)		𝐹0 mN (mean ± SEM)		𝑃0 mN/mm^2 (mean ± SEM)
	VL	LD	VL	LD	VL	LD
1	6799±488	3242±259^∗∗	0.735±0.076	0.37±0.03^∗∗	109.1±9.3	115.89±17.26
2A	6484±653	4998±420	0.808±0.087	0.8±0.09	139.6±14.7	161.3±12.55
2A/2X	5555±663	5067±418	1.029±0.138	0.66±0.07^∗	190.6±18.1	134.48±13.26^∗

^∗𝑃<0.05; ^∗∗𝑃<0.0001.