Table 1.

Summary of skeletal muscle conductivity values reported at 50 kHz.

	Model (strain)	Time point	Muscle	Direction	Conductivity (S m−1)
Li et al.30	WT (C57Bl/6N)	10 weeks	Mouse gastrocnemius	L	0.5
				T	0.15
	ALS (SOD1*G93A)	18 weeks		L	0.5
				T	0.3
	MDX (10ScSn-DMDmdx/J)	10 weeks		L	0.7
				T	0.4
Epstein et al.31	WT (n.a.)	n.a.	Canine adductor magnus et brevis	L	0.7
				T	0.1
Sanchez et al.43	WT (Wistar)	14 weeks	Rat gastrocnemius	L	0.6
				T	0.25
Rush et al.46	WT (Mongrel)	14–30 kg	Canine longissimus dorsi, spinalis dorsi et cervicis	L	0.35–0.81
				T	0.04–0.1
Ahad et al.47	WT (Wistar)	140–160 g	Rat immature gastrocnemius	L	0.44 ± 0.04
				T	0.12 ± 0.01
		420–480 g	Rat mature gastrocnemius	L	0.38 ± 0.02
				T	0.15 ± 0.01
	ALS (SOD1*G93A)	8 weeks	Mouse gastrocnemius	L	0.23 ± 0.05
				T	0.11 ± 0.03
		18 weeks		L	0.11 ± 0.02
				T	0.10 ± 0.01
	D2-mdx (DBA/2-congenic)	6 weeks	Mouse gastrocnemius	L	0.36 ± 0.03
				T	0.24 ± 0.03
		10 weeks		L	0.37 ± 0.04
				T	0.25 ± 0.01
		13 weeks		L	0.42 ± 0.03
				T	0.33 ± 0.02
		43 weeks		L	0.17 ± 0.01
				T	0.11 ± 0.01
This work	WT for D2-mdx (DBA/2J)	6 weeks	Mouse gastrocnemius	L	0.28 ± 0.02
				T	0.17 ± 0.01
		13 weeks		L	0.31 ± 0.04
				T	0.26 ± 0.03
		43 weeks		L	0.27 ± 0.02
				T	0.13 ± 0.01
	SMA (Smn 2B/2B-Neo)	40 weeks	Mouse gastrocnemius	L	0.16 ± 0.02
				T	0.06 ± 0.01
	DB/DB (BKS.Cg-Dock7m +/+ Leprdb/J)	6 weeks	Mouse gastrocnemius	L	0.31 ± 0.04
				T	0.20 ± 0.04
		20 weeks		L	0.21 ± 0.01
				T	0.09 ± 0.02
	WT for DB/DB (C57BLKS/J)	6 weeks	Mouse gastrocnemius	L	0.34 ± 0.02
				T	0.20 ± 0.03
		20 weeks		L	0.33 ± 0.01
				T	0.14 ± 0.02
	Mice (C57BL/6J) treated with ActRIIB-m Fc	14 weeks	Mouse gastrocnemius	L	0.34 ± 0.06
				T	0.26 ± 0.02

Abbreviations: L, longitudinal; T, transverse; n.a., not available.