. 2022 Apr 13;28(7-8):312–329. doi: 10.1089/ten.tea.2021.0137

Table 2.

Summary of Rat Latissimus Dorsi Muscle Functional Measurement Data at 24 Weeks Postinjury

Treatment groups	Contralateral control	NR	Low (1 kPa)	Medium (3 kPa)	High (10 kPa)
Sample size (n)	33	9	8	8	8
BW at explant (g)	—	491.3 ± 35.53^a	485.9 ± 22.58^a	499.8 ± 36.71^a	483.0 ± 27.89^a
Wet weight (g)	2.10 ± 0.17^a	2.02 ± 0.12^b	2.17 ± 0.21^b,c	2.21 ± 0.14^a,b	2.25 ± 0.15^a,c
Lo (mm)	71.13 ± 4.05^a	74.22 ± 3.46^a	74.88 ± 3.40^a	74.50 ± 3.46^a	73.75 ± 4.89^a
PCSA (mm²)	31.30 ± 1.80^a	25.78 ± 1.74^b	27.40 ± 3.25^b,c	27.96 ± 1.97^b,c	28.86 ± 2.48^c
Isometric force parameters
P_t (N)	0.52 ± 0.21^a	0.30 ± 0.17^b	0.32 ± 0.17^a,b	0.28 ± 0.18^b	0.29 ± 0.16^b
P₀ (N)	2.94 ± 0.46^a	2.15 ± 0.51^b	2.44 ± 0.42^a,b	2.66 ± 0.53^a,b	2.26 ± 0.53^b
Specific P₀ (mN/mm²)	94.4 ± 15.9^a	83.1 ± 17.6^a	90.5 ± 20.3^a	95.9 ± 22.0^a	78.9 ± 19.1^a

Values are presented as mean ± SD. Statistical differences were analyzed using Tukey's post-hoc test after performing a one-way ANOVA. Values with the same letter were not significantly different (p > 0.05), while values with dissimilar letter were significantly different (p < 0.05). Peak twitch response (P_t) and maximal isometric contraction force (P₀) were measured by ex vivo direct electric stimuli (0.2 ms, 30 V). Measured P₀ was normalized to PCSA to determine specific force (specific P₀).

—, analysis not applicable to contralateral control; L₀, muscle length.