Table 2.

Regression equations for tendon travel (m) with joint angle (radians) for pelvic limb muscles

Muscle	Joint	Regression equation	R2
Ambiens	Hip	0.0301x2 + 0.0002x – 0.0386	0.97
Caudofemoralis	Hip	–0.0636x2 + 0.1083x – 0.0418	0.91
Flexor cruris lateralis	Hip	–0.1022x2 + 0.1578x – 0.0439	0.89
Flexor cruris medialis	Hip	–0.0557x + 0.0567	0.69
Iliofemoralis externus	Hip	0.0106x2 + 0.0072x – 0.0200	0.85
Iliofibularis	Hip	–0.0697x2 + 0.0625x + 0.0217	0.91
Iliotibialis cranialis	Hip	0.1233x – 0.1357	0.95
Iliotibialis lateralis	Hip	–0.0586x2 + 0.1103x – 0.0505	0.78
Iliotrochantericus caudalis	Hip	0.0167x2 + 0.0007x – 0.0201	0.94
Iliotrochantericus cranialis	Hip	0.0346x2 – 0.0429x + 0.0069	0.92
Pubo-ischio-femoralis	Hip	–0.0747x2 + 0.1079x – 0.0345	0.97
Ambiens	Knee	–0.0254x + 0.0372	0.75
Femorotibialis externus	Knee	–0.0144x + 0.0216	0.56
Femorotibialis medius	Knee	0.0148x2 – 0.1075x + 0.1339	0.79
Gastrocnemius (caudalis)	Knee	0.0281x2 – 0.0812x + 0.0591	0.91
Gastrocnemius (lateralis)	Knee	0.0081x – 0.0111	0.58
Gastrocnemius (medialis)	Knee	0.0081x2 – 0.0171x + 0.0060	0.64
Iliofibularis	Knee	0.0212x2 + 0.0191x – 0.0597	0.92
Extensor digitorum longus	Ankle	0.0175x – 0.0198	0.96
Flexor digitorum longus	Ankle	–0.0223x + 0.0014	0.80
Fibularis longus	Ankle	–0.0243x + 0.0194	0.96
Flexors (FPDIII, FPDIV, FPetPDIII)	Ankle	–0.0053x2 – 0.0067x + 0.0027	0.86
Gastrocnemius	Ankle	–0.0126x2 – 0.0071x + 0.0102	0.85
Tibialis cranialis	Ankle	0.0260x – 0.0291	0.99
Extensor digitorum longus	MTP	0.0025x2 – 0.0016x – 0.0295	0.99
Flexor digitorum longus	MTP	0.0054x2 – 0.0620x + 0.1662	0.97
Flexors (FPDIII, FPDIV, FPetPDIII)	MTP	0.0076x2 – 0.0809x + 0.2066	0.99