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Table 4.

Results of two-way ANCOVA, with θ as covariate

Least-squares means
Least-squares means
Forelimb (N=31)Hindlimb (N=29)P-valueRough (N=32)Smooth (N=28)P-value
Peak Fshear (BW units) 1.04±0.10 1.49±0.11 0.0072 1.17±0.10 1.36±0.10 0.1839 
Median Fshear (BW units) Regressions not significant      
Peak Fnormal (BW units) Slopes significantly different (i.e. slopes were not homogeneous)   0.46±0.02 0.42±0.02 0.0725 
Median Fnormal (BW units)    0.35±0.02 0.31±0.02 0.0651 
Peak μreq 5.5±0.8 8.3±0.8 0.0256 6.7±0.7 7.1±0.8 0.7155 
Median μreq 2.5±0.3 3.2±0.3 0.2232 2.7±0.3 3.0±0.3 0.4191 
Least-squares means
Least-squares means
Forelimb (N=31)Hindlimb (N=29)P-valueRough (N=32)Smooth (N=28)P-value
Peak Fshear (BW units) 1.04±0.10 1.49±0.11 0.0072 1.17±0.10 1.36±0.10 0.1839 
Median Fshear (BW units) Regressions not significant      
Peak Fnormal (BW units) Slopes significantly different (i.e. slopes were not homogeneous)   0.46±0.02 0.42±0.02 0.0725 
Median Fnormal (BW units)    0.35±0.02 0.31±0.02 0.0651 
Peak μreq 5.5±0.8 8.3±0.8 0.0256 6.7±0.7 7.1±0.8 0.7155 
Median μreq 2.5±0.3 3.2±0.3 0.2232 2.7±0.3 3.0±0.3 0.4191 

Interactions between limb and substrate texture factors were never significant (P⩾0.389). Regressions were significantly different from zero (P⩽0.0357) unless otherwise indicated

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