(b) Walking up stairs

All the motion data of the lower body segments			Only each foot motion data
ID	Mean ± SD of the Pearson correlation coefficient		ID	Mean ± SD of the Pearson correlation coefficient
	Left	Right		Left	Right
2	0.72 ± 0.06	0.66 ± 0.18	2	0.10 ± 0.23	−0.21 ± 0.04
4	0.65 ± 0.11	0.43 ± 0.16	4	0.39 ± 0.30	0.10 ± 0.56
6	0.67 ± 0.05	0.74 ± 0.04	6	0.67 ± 0.05	0.74 ± 0.04
8	0.74 ± 0.07	0.44 ± 0.07	8	0.68 ± 0.09	0.64 ± 0.10
10	0.38 ± 0.15	0.42 ± 0.14	10	0.05 ± 0.19	0.44 ± 0.16