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TABLE III

Summary of the Values of Passive Force, Maximal Active Force, pCa50, ΔpCa50, and nH in Control and sTn-reconstituted PLV in High Passive Force Experiments


SL
Passive force
Maximal force
pCa50
ΔpCa50
nH
 μmN/mm2 mN/mm2    
Fig. 4 A        
    Control PLV 1.9 ∼0 57.52 ± 1.92 5.56 ± 0.01  4.33 ± 0.19 
 2.3 (high PF) 14.50 ± 1.04a 82.23 ± 3.40a 5.89 ± 0.01a 0.33 ± 0.01a 3.77 ± 0.19 
    PLV (+sTn) 1.9 ∼0 56.33 ± 1.23 (59.21 ± 3.36) 5.80 ± 0.03b  3.76 ± 0.08 
 2.3 (high PF) 15.45 ± 0.85a 68.53 ± 2.34ab 6.01 ± 0.02ab 0.21 ± 0.01a 3.84 ± 0.41 

SL
Passive force
Maximal force
pCa50
ΔpCa50
nH
 μmN/mm2 mN/mm2    
Fig. 4 A        
    Control PLV 1.9 ∼0 57.52 ± 1.92 5.56 ± 0.01  4.33 ± 0.19 
 2.3 (high PF) 14.50 ± 1.04a 82.23 ± 3.40a 5.89 ± 0.01a 0.33 ± 0.01a 3.77 ± 0.19 
    PLV (+sTn) 1.9 ∼0 56.33 ± 1.23 (59.21 ± 3.36) 5.80 ± 0.03b  3.76 ± 0.08 
 2.3 (high PF) 15.45 ± 0.85a 68.53 ± 2.34ab 6.01 ± 0.02ab 0.21 ± 0.01a 3.84 ± 0.41 

Passive force was obtained ∼10 s after increasing SL to 2.3 μm. Numbers in parentheses indicate maximal force values obtained prior to sTn reconstitution (P > 0.05 compared with corresponding values obtained after sTn reconstitution).

a

P < 0.05 compared with corresponding values obtained in experiments under steady-state passive force (Table II).

b

P < 0.05 compared with corresponding values for control PLV at high passive force (high PF).

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