Joint-specific changes in locomotor complexity in the absence of muscle atrophy following incomplete spinal cord injury

Table 1 Hindlimb muscle properties in sham and iSCI rats

	Muscle weight (g)		Pennation angle (deg)		Fiber length (mm)		Sarcomere length (mm)
	Sham	iSCI	Sham	iSCI	Sham	iSCI	Sham	iSCI
GM	0.80 ± 0.10	0.82 ± 0.10	29.7 ± 9.0	23.3 ± 5.6	10.63 ± 4.53	7.77 ± 0.62	1.99 ± 0.15	2.12 ± 0.23
GL	1.24 ± 0.20	1.18 ± 0.11	31.0 ± 7.4	27.3 ± 7.6	10.92 ± 6.57	9.93 ± 2.36	2.03 ± 0.07	2.10 ± 0.19
SOL	0.18 ± 0.03	0.18 ± 0.02	24.3 ± 11.2	21.0 ± 1.4	9.81 ± 3.04	8.69 ± 3.70	2.23 ± 0.11	2.14 ± 0.23
TA	0.69 ± 0.06	0.66 ± 0.03	32.3 ± 11.6	26.3 ± 9.0	13.32 ± 3.16	11.72 ± 3.98	2.24 ± 0.32	2.07 ± 0.25
VL	1.13 ± 0.09	1.22 ± 0.13	28.9 ± 4.6	27.3 ± 6.6	12.78 ± 1.08	13.67 ± 2.21	2.09 ± 0.06	2.09 ± 0.39
VM	1.60 ± 0.08	1.51 ± 0.17	21.8 ± 17.9	22.5 ± 3.5	11.96 ± 4.21	14.76 ± 2.63	2.24 ± 0.40	2.18 ± 0.06
RF	0.88 ± 0.15	0.86 ± 0.07	27.3 ± 2.1	34.2 ± 4.3	8.25 ± 1.59	8.19 ± 1.87	2.02 ± 0.19	1.95 ± 0.15
ST	1.28 ± 0.23	1.22 ± 0.27	0.0 ± 0.0	0.0 ± 0.0	29.96 ± 3.49	26.18 ± 5.15	2.12 ± 0.18	2.05 ± 0.14
BFk	2.09 ± 0.33	2.12 ± 0.27	0.0 ± 0.0	0.0 ± 0.0	26.92 ± 1.70	22.45 ± 3.69	1.99 ± 0.17	2.03 ± 0.06
BFh	1.02 ± 0.24	0.90 ± 0.06	0.0 ± 0.0	0.0 ± 0.0	25.87 ± 9.85	22.70 ± 5.77	2.01 ± 0.09	1.94 ± 0.17

Muscle weight, pennation angle, fiber length and sarcomere length were obtained for Gastrocnemius Medialis (GM), Gastrocnemius Lateralis (GL), Soleus (SOL), Tibialis Anterior (TA), Biceps Femoris-hip extensor (BFh), Biceps Femoris-knee flexor (BFk), Semitendinosis (ST), Vastus Lateralis (VL), Vastus Medialis (VM), and Rectus Femoris (RF). Statistically significant differences were not observed for any measures between groups, suggesting absence of muscle atrophy. Standard deviation was also similar between groups for all measures. Data are Mean ± SD, n = 5 per group.

ISSN: 1743-0003