Table 4.

Spearman correlation results for dimensionless architectural indices of the full dataset (all muscles sampled)

Correlation variable	n	Scaling pattern	H0	ρ	P	Adj. P
PCSA/MM
Paravertebral flexors	12	iso	0.0	0.354	0.256	0.777
Paravertebral extensors	12	iso		0.109	0.730	0.910
Hip flexors	7	iso		0.467	0.283	0.777
Hip extensors	7	iso		−0.071	0.911	0.911
Hip abductors	9	iso		−0.250	0.535	0.891
Hip adductors	5	iso		−0.200	0.819	0.910
Knee flexors	5	iso		0.200	0.700	0.910
Knee extensors	8	iso		0.405	0.311	0.777
Ankle extensors	9	iso		0.467	0.201	0.777
MTP/digital flexors	12	iso		0.217	0.493	0.891
L F/ML
Paravertebral flexors	12	iso	0.0	−0.112	0.738	0.938
Paravertebral extensors	12	iso		−0.228	0.485	0.938
Hip flexors	7	iso		−0.536	0.244	0.938
Hip extensors	7	iso		−0.107	0.852	0.938
Hip abductors	9	iso		0.117	0.751	0.938
Hip adductors	7	iso		−0.286	0.569	0.938
Knee flexors	5	iso		−0.100	0.939	0.938
Knee extensors	8	iso		−0.429	0.311	0.938
Ankle extensors	9	iso		−0.500	0.183	0.938
MTP/digital flexors	12	iso		−0.126	0.706	0.938
L F/r m
Hip flexors	7	iso	0.0	0.393	0.369	0.591
Hip extensors	7	iso		0.679	0.090	0.591
Hip abductors	9	iso		0.500	0.166	0.591
Hip adductors	7	iso		0.464	0.283	0.591
Knee flexors	6	iso		−0.029	1.000	1.000
Knee extensors	7	iso		0.429	0.325	0.591
Ankle extensors	9	iso		−0.183	0.655	0.874
Digital flexors	12	iso		0.014	0.957	1.000

Adjusted P‐values < 0.05 are significantly different from the null hypothesis (H₀) of isometry.

ρ, Spearman rank‐order correlation coefficient.

Significant correlation indicates positive (+) or negative allometry (−) (i.e. a significant directional change in a variable as body mass increases).