. | Principal component loadings . | . | . | . | |||
---|---|---|---|---|---|---|---|
Variance explained . | PC1 51.4% . | PC2 18.5% . | PC3 18% . | PC4 6.1% . | |||
MAP variables | |||||||
Protractor hyoiedeus activity duration | –34.72 | 15.18 | 6.00 | 3.12 | |||
Sternohyoideus onset timing | 27.22 | 6.72 | 17.26 | 5.90 | |||
Sternohyoideus activity duration | –23.14 | 2.69 | –13.06 | –11.48 | |||
Protractor hyoideus onset timing | 21.35 | –17.30 | –17.81 | 0.96 | |||
Hypaxialis onset timing | 19.25 | 10.69 | 7.32 | –11.41 | |||
Hypaxialis activity duration | –18.98 | –5.84 | –3.62 | 11.44 | |||
Adductor mandibularis activity duration | –14.33 | –18.62 | 15.49 | –3.24 | |||
Adductor mandibularis onset timing | 10.56 | 18.02 | –16.32 | 4.87 | |||
Protractor hyoideus integrated area | –1.81 | 1.08 | –0.55 | –0.44 | |||
Sternohyoideus integrated area | –0.86 | –0.77 | 0.51 | 0.34 | |||
Epaxialis integrated area | –0.68 | 0.05 | –0.45 | 0.46 | |||
Adductor mandibularis integrated area | –0.66 | –1.68 | 1.19 | 0.36 | |||
Epaxialis activity duration | 0.46 | 5.24 | 1.11 | 0.52 | |||
Hypaxialis integrated area | 0.45 | 0.05 | 0.62 | –0.02 | |||
Hypaxialis relative mean amplitude | 0.04 | 0.01 | 0.02 | –0.01 | |||
Protractor hyoideus mean amplitude | 0.02 | –0.00 | –0.01 | –0.01 | |||
Epaxialis mean amplitude | –0.02 | –0.01 | –0.01 | 0.01 | |||
Adductor mandibularis mean amplitude | 0.01 | –0.00 | –0.00 | 0.01 | |||
Sternohyoideus mean amplitude | 0.00 | –0.01 | 0.02 | 0.01 | |||
F-statistics (F1,40) | 71.0,7 P<0.001 | 8.20, P<0.01 | 22.54, P<0.001 | 1.10, P=0.3 |
. | Principal component loadings . | . | . | . | |||
---|---|---|---|---|---|---|---|
Variance explained . | PC1 51.4% . | PC2 18.5% . | PC3 18% . | PC4 6.1% . | |||
MAP variables | |||||||
Protractor hyoiedeus activity duration | –34.72 | 15.18 | 6.00 | 3.12 | |||
Sternohyoideus onset timing | 27.22 | 6.72 | 17.26 | 5.90 | |||
Sternohyoideus activity duration | –23.14 | 2.69 | –13.06 | –11.48 | |||
Protractor hyoideus onset timing | 21.35 | –17.30 | –17.81 | 0.96 | |||
Hypaxialis onset timing | 19.25 | 10.69 | 7.32 | –11.41 | |||
Hypaxialis activity duration | –18.98 | –5.84 | –3.62 | 11.44 | |||
Adductor mandibularis activity duration | –14.33 | –18.62 | 15.49 | –3.24 | |||
Adductor mandibularis onset timing | 10.56 | 18.02 | –16.32 | 4.87 | |||
Protractor hyoideus integrated area | –1.81 | 1.08 | –0.55 | –0.44 | |||
Sternohyoideus integrated area | –0.86 | –0.77 | 0.51 | 0.34 | |||
Epaxialis integrated area | –0.68 | 0.05 | –0.45 | 0.46 | |||
Adductor mandibularis integrated area | –0.66 | –1.68 | 1.19 | 0.36 | |||
Epaxialis activity duration | 0.46 | 5.24 | 1.11 | 0.52 | |||
Hypaxialis integrated area | 0.45 | 0.05 | 0.62 | –0.02 | |||
Hypaxialis relative mean amplitude | 0.04 | 0.01 | 0.02 | –0.01 | |||
Protractor hyoideus mean amplitude | 0.02 | –0.00 | –0.01 | –0.01 | |||
Epaxialis mean amplitude | –0.02 | –0.01 | –0.01 | 0.01 | |||
Adductor mandibularis mean amplitude | 0.01 | –0.00 | –0.00 | 0.01 | |||
Sternohyoideus mean amplitude | 0.00 | –0.01 | 0.02 | 0.01 | |||
F-statistics (F1,40) | 71.0,7 P<0.001 | 8.20, P<0.01 | 22.54, P<0.001 | 1.10, P=0.3 |
Nested MANOVA results for each PC axis, excluding the effect of individual variability, are also given
MAP, muscle-activity pattern; bold type signifies high PC loadings (see text) and significant P-values