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Table 1.

Regression analysis against body mass of myoglobin concentration and enzyme activity in red and white muscle

Equation Y=aWbCoefficient of determination (R2)Standard error of the slope (b)P-value
Red muscle     
   [Mb] 759.079W0.745 0.502 0.170 0.0003 
   COX 49.626W–0.014 0.503 0.004 0.0045 
   CS 58.473W–0.022 0.383 0.007 0.0069 
   PK 85.025W0.020 0.132 0.014 0.1837 
   LDH 275.317W0.033 0.121 0.023 0.1720 
   PFK 58.146W–0.017 0.163 0.009 0.0776 
   CPK 49.675W0.528 0.896 0.054 <0.0001 
White muscle     
   [Mb] 63.517W0.003 0.003 0.012 0.8038 
   COX 1.439W–0.001 0.247 2.354×10–4 0.0424 
   CS 1.200W–3.356×10–5 0.003 1.693×10–4 0.8462 
   PK 146.786W0.110 0.451 0.022 0.0044 
   LDH 509.240W0.342 0.487 0.091 0.0018 
   PFK 105.833W0.105 0.547 0.023 0.0002 
   CPK 156.856W0.824 0.900 0.083 <0.0001 
Equation Y=aWbCoefficient of determination (R2)Standard error of the slope (b)P-value
Red muscle     
   [Mb] 759.079W0.745 0.502 0.170 0.0003 
   COX 49.626W–0.014 0.503 0.004 0.0045 
   CS 58.473W–0.022 0.383 0.007 0.0069 
   PK 85.025W0.020 0.132 0.014 0.1837 
   LDH 275.317W0.033 0.121 0.023 0.1720 
   PFK 58.146W–0.017 0.163 0.009 0.0776 
   CPK 49.675W0.528 0.896 0.054 <0.0001 
White muscle     
   [Mb] 63.517W0.003 0.003 0.012 0.8038 
   COX 1.439W–0.001 0.247 2.354×10–4 0.0424 
   CS 1.200W–3.356×10–5 0.003 1.693×10–4 0.8462 
   PK 146.786W0.110 0.451 0.022 0.0044 
   LDH 509.240W0.342 0.487 0.091 0.0018 
   PFK 105.833W0.105 0.547 0.023 0.0002 
   CPK 156.856W0.824 0.900 0.083 <0.0001 

COX, cytochrome oxidase; CS, citrate synthase; PK, pyruvate kinase; LDH,lactate dehydrogenase; PFK, phosphofructokinase; CPK, creatine phosphokinase

Y is the parameter examined, a is a normalisation constant (the value of the y-axis intercept), W is the body mass (g) and b is the scaling exponent (slope of the regression line)

[Mb], myoglobin concentration (nmol l–1 g wet mass–1); enzyme activity (i.u. g wet mass–1min–1)

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