The Company of Biologists

Table 2.

Repeatability indices obtained with Pearson's correlation (r)and intraclass coefficient (τ) from one-way ANOVA

	Residuals from regular regression					Residuals from nested model
	R	τ	one-tailed P	R	τ	one-tailed P
V̇_{O_2max,W}(N=47)	0.844	0.982	<0.0001	0.750	0.969	<0.0001
V̇_{O_2max,T}(N=48)	0.420	0.816	0.0015	0.342	0.719	0.009
V̇_O₂max,H(N=47)	0.134	-0.098	0.185	0.095	-0.418	0.263
T_b,H(N=34)^{^a}	0.360	0.653	0.018	0.124	-0.336	0.243
RMR_5,W	0.490	0.868	<0.001	0.530	0.887	<0.001
Speed_Max,W	0.879	0.984	<0.0001	0.843	0.981	<0.0001
Speed_Max,T	0.677	0.950	<0.0001	0.700	0.956	<0.0001

	Residuals from regular regression					Residuals from nested model
	R	τ	one-tailed P	R	τ	one-tailed P
V̇_{O_2max,W}(N=47)	0.844	0.982	<0.0001	0.750	0.969	<0.0001
V̇_{O_2max,T}(N=48)	0.420	0.816	0.0015	0.342	0.719	0.009
V̇_O₂max,H(N=47)	0.134	-0.098	0.185	0.095	-0.418	0.263
T_b,H(N=34)^{^a}	0.360	0.653	0.018	0.124	-0.336	0.243
RMR_5,W	0.490	0.868	<0.001	0.530	0.887	<0.001
Speed_Max,W	0.879	0.984	<0.0001	0.843	0.981	<0.0001
Speed_Max,T	0.677	0.950	<0.0001	0.700	0.956	<0.0001

P values are mathematically identical because measurements were performed only twice.

Repeatability was calculated from residuals of regular multiple regressions of metabolism on body mass and age, or residuals obtained from the entire nested model (SAS PROC MIXED) with line type and line within line types as fixed and random factors, respectively, and body mass and age as covariates.

N=48 females approximately 8 weeks old. Values in bold indicate statistical significance (P<0.05). All values were the highest 1 min averages.

W, wheel (voluntary exercise); T, treadmill (forced exercise); H, heliox,except RMR (lowest 5 min period of V̇_O₂ during wheel trial).

Two influential points (1 S and 1 C) were removed

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