Table 3. Results of RMA linear regression of muscle architecture vs. body mass (BM) for the pelvic limb of Dromaius novaehollandiae, across ontogeny.

Mm vs BM						Lf vs BM					PCSA vs BM
Muscle	Outliers	Slope	Lower 95% CI	Upper 95% CI	R 2	Outliers	Slope	Lower 95% CI	Upper 95% CI	R 2	Outliers	Slope	Lower 95% CI	Upper 95% CI	R 2
AMB	0	1.08	0.96	1.21	0.96	0	0.42	0.31	0.57	0.67	0	0.81	0.64	1.03	0.81
CFP	0	1.18	1.09	1.28	0.98	0	0.48	0.31	0.73	0.36	0	0.94	0.78	1.13	0.89
EDL	0	1.25	1.10	1.41	0.95	0	0.54	0.39	0.75	0.64	0	0.82	0.67	1.01	0.86
FCLA	1	1.16	0.95	1.43	0.87	1	0.36	0.24	0.53	0.51	1	0.89	0.73	1.09	0.87
FCLP	0	1.26	1.16	1.36	0.98	0	0.33	0.24	0.44	0.69	0	0.99	0.89	1.09	0.97
FCM	1	1.31	1.16	1.48	0.95	1	0.60	0.39	0.91	0.42	1	0.95	0.75	1.20	0.83
FDL	1	1.29	1.15	1.44	0.96	1	0.58	0.37	0.90	0.36	1	0.93	0.76	1.15	0.86
FHL	1	1.22	1.04	1.42	0.93	1	0.66	0.42	1.04	0.34	1	0.98	0.70	1.37	0.64
FL	0	1.32	1.23	1.42	0.98	0	0.44	0.33	0.58	0.73	0	0.98	0.84	1.16	0.91
FMTIM	0	1.24	1.05	1.48	0.90	0	0.64	0.43	0.97	0.40	0	0.99	0.70	1.41	0.57
FMTL	0	1.19	0.95	1.49	0.83	0	0.43	0.31	0.60	0.64	0	0.86	0.65	1.14	0.73
FMTM	0	1.29	1.05	1.59	0.86	0	0.45	0.29	0.70	0.31	0	0.99	0.80	1.22	0.85
FPDII	0	1.45	1.26	1.67	0.93		–	–	–	–	0	1.40	1.06	1.84	0.74
FPDIII	0	1.34	1.19	1.51	0.95	0	0.60	0.41	0.88	0.47	0	1.03	0.78	1.36	0.74
FPDIV	0	1.20	1.09	1.32	0.97	0	0.43	0.28	0.65	0.38	0	0.99	0.80	1.22	0.85
FPPDII	0	0.75	0.59	0.95	0.81	0	0.74	0.49	1.14	0.37	0	0.68	0.44	1.07	0.29
FPPDIII	0	1.29	1.15	1.45	0.96		–	–	–	–	0	0.98	0.72	1.34	0.67
GIM	0	1.32	1.01	1.73	0.75	0	0.46	0.34	0.63	0.69	0	1.03	0.72	1.48	0.54
GL	0	1.30	1.19	1.43	0.97	0	0.51	0.40	0.67	0.77	0	0.88	0.76	1.01	0.93
GM	0	1.24	1.14	1.33	0.98	0	0.34	0.26	0.43	0.77	0	0.93	0.82	1.06	0.95
IC	0	1.27	1.15	1.40	0.97	0	0.31	0.24	0.39	0.81	0	1.00	0.88	1.13	0.95
IFE	0	1.26	1.11	1.42	0.95	0	0.56	0.42	0.75	0.72	0	0.79	0.66	0.93	0.91
IFI	2	1.22	0.97	1.54	0.85	2	0.49	0.33	0.72	0.57	2	0.92	0.66	1.28	0.68
IB	0	1.32	1.22	1.42	0.98	0	0.36	0.30	0.44	0.89	0	0.98	0.89	1.07	0.97
ILPO	0	1.29	1.16	1.43	0.96	0	0.31	0.21	0.46	0.50	0	1.08	0.92	1.26	0.92
ISF	3	1.10	0.93	1.32	0.92	–	–	–	–	–	3	1.06	0.73	1.54	0.63
ITC	2	1.26	1.14	1.39	0.97	2	0.76	0.61	0.95	0.86	2	0.64	0.50	0.81	0.84
ITCr	0	1.16	0.99	1.36	0.92	0	0.37	0.27	0.50	0.68	0	0.89	0.70	1.13	0.80
ITM	2	1.12	0.83	1.51	0.75	2	0.78	0.49	1.23	0.39	2	0.89	0.55	1.45	0.29
OMII	0	1.23	1.10	1.39	0.95	0	0.73	0.46	1.15	0.27	0	1.05	0.76	1.45	0.65
OMIP	0	1.23	1.11	1.36	0.97	0	0.53	0.36	0.77	0.49	0	0.94	0.77	1.15	0.87
PIFLM	0	1.24	1.13	1.36	0.97	–	–	–	–	–	0	1.11	0.89	1.39	0.83
POP	2	1.44	1.17	1.76	0.88	2	0.68	0.41	1.13	0.22	2	1.15	0.88	1.51	0.79
TC	0	1.20	1.08	1.33	0.97	0	0.68	0.50	0.93	0.67	0	0.77	0.55	1.07	0.63

Notes.

M_m

muscle mass (kg)

L_f

fascicle length (m)

PCSA

physiological cross-sectional area (m²)