The Company of Biologists

Table 1.

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

	Equation Y=aW^b	Coefficient of determination (R²)	Standard error of the slope (b)	P-value
Red muscle
[Mb]	759.079W^0.745	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	85.025W^0.020	0.132	0.014	0.1837
LDH	275.317W^0.033	0.121	0.023	0.1720
PFK	58.146W^–0.017	0.163	0.009	0.0776
CPK	49.675W^0.528	0.896	0.054	<0.0001
White muscle
[Mb]	63.517W^0.003	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	146.786W^0.110	0.451	0.022	0.0044
LDH	509.240W^0.342	0.487	0.091	0.0018
PFK	105.833W^0.105	0.547	0.023	0.0002
CPK	156.856W^0.824	0.900	0.083	<0.0001

	Equation Y=aW^b	Coefficient of determination (R²)	Standard error of the slope (b)	P-value
Red muscle
[Mb]	759.079W^0.745	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	85.025W^0.020	0.132	0.014	0.1837
LDH	275.317W^0.033	0.121	0.023	0.1720
PFK	58.146W^–0.017	0.163	0.009	0.0776
CPK	49.675W^0.528	0.896	0.054	<0.0001
White muscle
[Mb]	63.517W^0.003	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	146.786W^0.110	0.451	0.022	0.0044
LDH	509.240W^0.342	0.487	0.091	0.0018
PFK	105.833W^0.105	0.547	0.023	0.0002
CPK	156.856W^0.824	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)

View Large

This Feature Is Available To Subscribers Only