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Table 1.

Contractile properties of brook trout red muscle

PositionMaximum tentanic tension (kN m-2)Ratio of twitch to tetanic tensionMaximum shortening velocity (Vmax, muscle lengths s-1)
Anterior 171.0±22.1 0.41±0.04 2.01±0.51 
Posterior 162.7±36.1 0.51±0.03 2.06±0.22 
Paired sample t-test    
   N 10 10 
   t 0.11 2.23 0.14 
   P 0.917 0.053 0.892 
   Power <0.50 <0.50 <0.50 
PositionMaximum tentanic tension (kN m-2)Ratio of twitch to tetanic tensionMaximum shortening velocity (Vmax, muscle lengths s-1)
Anterior 171.0±22.1 0.41±0.04 2.01±0.51 
Posterior 162.7±36.1 0.51±0.03 2.06±0.22 
Paired sample t-test    
   N 10 10 
   t 0.11 2.23 0.14 
   P 0.917 0.053 0.892 
   Power <0.50 <0.50 <0.50 

Maximum tension, twitch tension and shortening velocity do not vary between anterior and posterior red muscle in these fish, although power is low for all three comparisons.

N=10 means that anterior and posterior muscle samples were used from each of 10 fish.

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