Table 2.

Correlation between the speed and gait parameters.

Parameters	C57BL/6N		DBA/2		FVB/N
	R score	P value	R score	P value	R score	P value
Cadence	0.8461	< 0.00001	0.8796	< 0.00001	0.8516	< 0.00001
Number of steps	− 0.8632	< 0.00001	− 0.8643	< 0.00001	− 0.7660	< 0.00001
Body Speed LF	0.9832	< 0.00001	0.9641	< 0.00001	0.9734	< 0.00001
Body Speed LH	0.9550	< 0.00001	0.9621	< 0.00001	0.9629	< 0.00001
Body Speed RF	0.9744	< 0.00001	0.9635	< 0.00001	0.9725	< 0.00001
Body Speed RH	0.9674	< 0.00001	0.9692	< 0.00001	0.9695	< 0.00001
Swing speed LF	0.9311	< 0.00001	0.8467	< 0.00001	0.8534	< 0.00001
Swing speed LH	0.6435	0.0001	0.6680	< 0.00001	0.6659	0.00001
Swing speed RF	0.9258	< 0.00001	0.9054	< 0.00001	0.8323	< 0.00001
Swing speed RH	0.6939	< 0.00001	0.6291	0.0000	0.6749	< 0.00001
Stand time LF	− 0.7727	< 0.00001	− 0.8030	< 0.00001	− 0.8172	< 0.00001
Stand time LH	− 0.8080	< 0.00001	− 0.8285	< 0.00001	− 0.8309	< 0.00001
Stand time RF	− 0.8039	< 0.00001	− 0.8523	< 0.00001	− 0.8485	< 0.00001
Stand time RH	− 0.7537	< 0.00001	− 0.7975	< 0.00001	− 0.8148	< 0.00001
Swing time LF	− 0.5926	0.0003	− 0.4047	0.0131	− 0.6271	0.0001
Swing time LH	− 0.1678	0.3529	− 0.2840	0.0885	− 0.2318	0.1818
Swing time RF	− 0.7248	< 0.00001	− 0.4307	0.0079	− 0.6690	0.00001
Swing time RH	− 0.0522	0.7738	− 0.1161	0.4942	− 0.2489	0.1509
Step cycle LF	− 0.8604	< 0.00001	− 0.8205	< 0.00001	− 0.8699	< 0.00001
Step cycle LH	− 0.7533	< 0.00001	− 0.8106	< 0.00001	− 0.7893	< 0.00001
Step cycle RF	− 0.8762	< 0.00001	− 0.8166	< 0.00001	− 0.8391	< 0.00001
Step cycle RH	− 0.7470	< 0.00001	− 0.8274	< 0.00001	− 0.8235	< 0.00001
Max contact at LF	− 0.2629	0.1408	0.2233	0.1840	− 0.0884	0.6152
Max contact at LH	0.3623	0.0383	− 0.0521	0.7599	0.0945	0.5892
Max contact at RF	0.1898	0.2901	0.3510	0.0332	0.1332	0.4456
Max contact at RH	− 0.2387	0.1823	0.2326	0.1659	0.1256	0.4722
Print area LF	0.1671	0.3527	0.0546	0.7482	0.0606	0.7295
Print area LH	− 0.3533	0.0439	− 0.5743	0.0002	− 0.0588	0.7407
Print area RF	− 0.0255	0.8902	0.1069	0.5289	− 0.0151	0.9318
Print area RH	− 0.3047	0.0854	− 0.2798	0.0945	− 0.2112	0.2237
Maximum intensity LF	0.1334	0.4592	0.2686	0.1080	− 0.0483	0.7842
Maximum Intensity LH	− 0.3596	0.0402	− 0.0392	0.8187	− 0.0299	0.8687
Maximum intensity RF	− 0.1100	0.5423	0.1112	0.5123	− 0.0126	0.9455
Maximum intensity RH	− 0.0421	0.8165	− 0.0601	0.7243	− 0.1510	0.3866
Base of support Front	0.0184	0.9190	− 0.4319	0.0077	− 0.3350	0.0492
Base of support hind	− 0.1330	0.4606	0.0689	0.6853	− 0.2185	0.2084
Stride length LF	0.8637	< 0.00001	0.8012	< 0.00001	0.6668	0.00001
Stride length LH	0.7763	< 0.00001	0.7089	< 0.00001	0.6217	0.0001
Stride length RF	0.8879	< 0.00001	0.8042	< 0.00001	0.6415	0.00001
Stride length RH	0.7829	< 0.00001	0.8576	< 0.00001	0.6720	< 0.00001
Print position left	− 0.3255	0.0650	− 0.3423	0.0383	− 0.3606	0.0337
Print position right	− 0.4614	0.0069	− 0.5312	0.0007	− 0.2749	0.1112
Support zero	0.0325	0.8575	0.0167	0.9219	0.3238	0.0578
Support single	0.6222	0.0001	0.2028	0.2287	0.1294	0.4588
Support diagonal	0.6831	0.00001	0.8550	< 0.00001	0.6845	< 0.00001
Support girdle	− 0.0964	0.5951	0.0023	0.9892	− 0.2282	0.1877
Support lateral	0.0222	0.9024	− 0.0550	0.7465	0.2800	0.1033
Support three	− 0.7791	< 0.00001	− 0.8736	< 0.00001	− 0.5580	0.0005
Support four	− 0.6018	0.0002	− 0.6542	0.00001	− 0.6103	0.0001
Phase dispersion LF-LH	0.3799	0.0292	0.1663	0.3253	0.0966	0.5809
Phase dispersion LF-RF	0.1547	0.3900	0.2410	0.1507	− 0.0422	0.8107
Phase dispersion LF-RH	− 0.1538	0.3953	− 0.0824	0.6295	− 0.0492	0.7798
Phase dispersion LH-RH	0.4273	0.0131	0.2471	0.1404	0.0391	0.8235
Phase dispersion RF-LH	0.1257	0.4858	− 0.2308	0.1709	− 0.1576	0.3678
Phase dispersion RF-RH	0.3328	0.0584	0.1833	0.2775	− 0.1372	0.4326
Number of patterns	− 0.5750	0.0005	− 0.8048	< 0.00001	− 0.6559	0.00001
Regularity index	0.5062	0.0027	0.5884	0.0001	0.3758	0.0261
Step sequence-Aa	0.0866	0.6318	0.3506	0.0334	0.0399	0.8200
Step sequence-Ab	− 0.1858	0.3027	− 0.2114	0.2100	− 0.1402	0.4225
Step sequence-Ca	0.3785	0.0299	0.0594	0.7269	− 0.0664	0.7064
Step sequence-Cb	− 0.2816	0.1132	0.1345	0.4274	0.2688	0.1184
Step sequence-Ra	− 0.1775	0.3244	− 0.0305	0.8601	− 0.1313	0.4532
Step sequence-Rb	− 0.0533	0.7696	− 0.2242	0.1826	NA	NA

The correlation was measured using Pearson’s correlation coefficient for each strain. The bold values indicate significant results.