. Author manuscript; available in PMC: 2011 Dec 1.

Published in final edited form as: J Surg Res. 2010 Sep 15;164(2):e243–e251. doi: 10.1016/j.jss.2010.08.032

Table 3.

Muscle Contractile Properties

		PL				SL

		S/A (n=10)	B/A (n=9)	S/HLU (n=10)	B/HLU (n=10)	S/A (n=10)	B/A (n=9)	S/HLU (n=6)	B/HLU (n=9)
Twitch Force	Pt (N)	1.62±0.09	1.82±0.13	1.80±0.11	1.88±0.07	0.28±0.02	0.29±0.02	0.16±0.01^‡⁽³⁾	0.22±0.02^*⁽¹⁾
	TPT (ms)	18.64±0.70	19.94±1.04	20.10±0.73	19.95±0.82	43.48±1.22	43.81±2.22	32.67±0.68^‡⁽²⁾	37.58±2.28^*⁽¹⁾
	½ RT (ms)	16.92±1.30	18.28±2.08	17.85±1.15	17.83±1.72	50.00±2.48	46.02±2.97	39.50±3.03^‡⁽¹⁾	41.55±4.12

Tetanic Force	Po (N)	8.03±0.22	7.48±0.28	6.84±0.20^‡⁽³⁾	6.10±0.20^*⁽³⁾^†⁽¹⁾	1.29±0.07	1.15±0.06	0.62±0.03^‡⁽³⁾	0.75±0.07^*⁽³⁾
Tetanic Force	Po/CSA (N/cm²)	30.67±0.93	31.15±1.52	31.28±1.05	31.18±1.01	22.04±1.26	21.35±1.19	17.34±0.78^‡⁽²⁾	20.28±1.45

Pt/Po		0.20±0.01	0.26±0.01^#⁽²⁾	0.26±0.01^‡⁽²⁾	0.31±0.02^*⁽²⁾^†⁽¹⁾	0.22±0.01	0.26±0.01^#⁽¹⁾	0.26±0.02^‡⁽²⁾	0.29±0.02^*⁽¹⁾^†⁽¹⁾
Fatigue Index (100%)		11.9±1.1	16.1±0.9^#⁽¹⁾	16.6±1.3^‡⁽²⁾	14.6±1.2	73.3±5.5	80.8±3.6	79.0±2.1	79.9±3.4

PL: Plantaris; SL: Soleus; S/A: Sham Ambulation; S/HLU: Sham Hindlimb Unloading; B/A: Burn Ambulation; B/HLU: Burn Hindlimb Unloading. Data are expressed by mean ± SEM. Significant difference:

S/A vs. B/A;

^‡

S/A vs. S/HLU;

^†

S/HLU vs. B/HLU;

B/A vs. B/HLU;

⁽¹⁾

p<0.05;

⁽²⁾

p<0.01;

⁽³⁾

p<0.001.