. Author manuscript; available in PMC: 2018 May 14.

Published in final edited form as: Phys Med Rehabil Clin N Am. 2012 Feb;23(1):149–xii. doi: 10.1016/j.pmr.2011.11.014

Table 2.

MRI volumetric measurements of proximal pelvic limb muscles in crossbred GRMD and Mstn⁺^/⁻ dogs^a

Muscle	Racer (Normal/Mstn⁺^/⁺)			Flash (Dys/Mstn⁺^/⁺)			Dash (Dys/Mstn⁺^/⁻)
Muscle	Volume (mm³)	Volume (mm³/kg)	Percent of Section	Volume (mm³)	Volume (mm³/kg)	Percent of Section	Volume (mm³)	Volume (mm³/kg)	Percent of Section
Cranial sartorius	101	5.87	1.77	168	16.15	4.25	309	30.00	8.01

Caudal sartorius	29	1.69	0.51	52	5.0	1.32	109	10.78	2.83

*Sartorius total*	*130*	*7.56*	*2.28*	*220*	*21.15*	*5.57*	*418*	*40.78*	*10.84*

Rectus femoris	279	16.22	4.89	181	17.40	4.58	69	6.70	1.79

Vastus lateralis	635	36.91	11.13	419	40.29	10.60	232	22.52	6.01

Vastus medialis	351	20.41	6.16	127	12.21	3.21	132	12.82	3.42

Vastus intermedius	480	27.91	8.42	207	19.90	5.23	130	12.62	3.37

*Quadriceps total*	*1745*	*101.45*	*30.60*	*934*	*89.80*	*23.62*	*563*	*54.66*	*14.59*

Semimembranosus	807	46.92	14.16	578	55.58	14.62	807	78.35	20.92

Semitendinosus	284	16.51	4.98	509	48.94	12.88	680	66.02	17.63

*Hamstring total*	*1091*	*63.43*	*19.14*	*1087*	*104.52*	*27.50*	*1487*	*144.37*	*38.55*

Biceps femoris	1156	67.21	20.28	643	61.83	16.27	612	59.42	15.86

Gracilis	634	36.86	11.12	214	20.58	5.41	176	17.09	4.56

Adductor	945	54.94	16.57	855	82.11	21.63	602	58.45	15.60

*Total*	*5701*	*331.45*	*99.99*	*3953*	*380.10*	*100*	*3858*	*374.77*	*100*

Measurements were made on 1-mm slices illustrated in Fig. 7 using the software program, ITK-SNAP.¹³⁷